diff --git a/Printed-Parts/scad/Einsy-base.scad b/Printed-Parts/scad/Einsy-base.scad
new file mode 100644
index 0000000..360dfba
--- /dev/null
+++ b/Printed-Parts/scad/Einsy-base.scad
@@ -0,0 +1,402 @@
+// PRUSA iteration4
+// Einsy base
+// GNU GPL v3
+// Josef Průša <iam@josefprusa.cz> and contributors
+// http://www.reprap.org/wiki/Prusa_Mendel
+// http://prusamendel.org
+
+
+module CubicPattern(Xdim, Ydim)
+{
+        for (x =[0:12:Xdim-10])
+        {
+            for (y =[0:12:Ydim-10])
+            {
+                translate([x,y,-0.2])cube([10,10,0.4]);
+            }
+        }
+}
+
+module BottomCubic()
+{
+    difference()
+    {
+        translate([5,5,0]) CubicPattern(110,90);
+        translate([11,0,-1]) cube( [ 11, 40 , 4 ] );  
+        translate([0,0,-1]) cube( [ 11, 28 , 4 ] );  
+        translate([0,64,-1]) cube( [ 16, 28 , 4 ] ); 
+        translate([95,64,-1]) cube( [ 20, 28 , 4 ] );  
+        translate([95,0,-1]) cube( [ 20, 28 , 4 ] );  
+        translate([76,-10,-1]) cube( [ 20, 20 , 4 ] );  
+        translate([52,76,-1]) cube( [ 12, 20 , 4 ] );  
+    }
+}
+
+
+
+// main body
+module main_body()
+{
+        // side panel
+        cube( [ 118.5 , 92 , 2 ] );  
+
+        // upper panel
+        cube( [ 1.5 , 92 , 35 ] );  
+        // rear panel
+        translate( [ 0 , 90 , 0 ] ) cube( [ 105.5 , 2 , 35 ] );  
+        // heatbed ziptie reinforcement
+        translate( [ 63 , 88.5 , 0.5 ] ) cube( [ 6.5 , 2 , 34.5 ] );   
+
+        // upper panel frame reinforcement
+        translate( [ 0 , 0 , 1 ] ) cube( [ 5.5 , 7 , 34 ] );  
+
+        // side panel reinforcement
+        translate( [ 0 , 0 , 1 ] ) cube( [ 9 , 92 , 3 ] );  
+        translate( [ 98 , 0 , 0 ] ) cube( [ 9 , 92 , 4 ] ); 
+        
+        // 
+        translate([21,81,0]) cylinder( h = 4.5, r = 2.5, $fn=30);   
+        translate([21+58,81,0]) cylinder( h = 4.5, r = 2.5, $fn=30);  
+
+    difference()
+        {
+            // bottom side reinforcement    
+            translate( [ 98 , 86 , 0 ] ) cube( [ 7.5 , 6 , 35 ] ); 
+            translate( [ 96 , 79 , 0 ] ) rotate([0,0,45]) cube( [ 7.5 , 6 , 36 ] ); 
+        }
+        translate( [ 0 , 85 , 0 ] ) cube( [ 5.5 , 7 , 35 ] ); 
+
+        // screw mounting block
+        translate( [ 54 , 84 , 0 ] ) cube( [ 9.5 , 7 , 35 ] );  
+
+        // frame side panel
+        translate( [ 20 , 0 , 0 ] ) cube( [ 80 , 3 , 5 ] );  
+
+        // Einsy mounting holes
+        translate( [ 102.5 , 14 , 1 ] ) rotate([0,0,90]) cylinder( h = 7, r = 5.5, $fn=6); 
+        translate( [ 102.5 , 75 , 1 ] ) rotate([0,0,90]) cylinder( h = 7, r = 5.5, $fn=6); 
+        translate( [ 7.5 , 14 , 1 ] ) cylinder( h = 7, r = 5.5, $fn=6); 
+        translate( [ 7.5 , 75 , 1 ] ) cylinder( h = 7, r = 5.5, $fn=6); 
+
+        // corners reinforcement
+        translate( [ 0 , 75 , 1 ] ) cube( [ 13 , 16 , 6 ] );  
+        translate( [ 0 , 70.25 , 1 ] ) cube( [ 7.5 , 11 , 6 ] ); 
+        translate( [ 0 , 7.75 , 1 ] ) cube( [ 7.5 , 11 , 6 ] ); 
+        translate( [ 0 , 0 , 1 ] ) cube( [ 13 , 14 , 6 ] ); 
+
+        // frame mounting screw blocks
+        //upper
+        translate( [ 1 , 0 , 0 ] ) cube( [ 28 , 4 , 10 ] );  
+        translate( [ 18.45 , 0 , 0 ] ) cube( [ 3 , 4 , 5.5] ); 
+
+        //lower
+        translate( [ 98 , 0 , 0 ] ) cube( [ 20.5 , 4 , 10 ] ); 
+
+        // heatbed filament holder body
+        translate( [ 81.6 , 90.35 , 24 ] ) rotate([0,90,0]) cylinder( h = 18, r = 5, $fn=6); 
+
+        // door closing corner
+        translate( [ 102 , 88.5 , 35 ] ) cylinder( h = 3, r1=2.5, r2=1, $fn=30);   
+
+        // doors pin upper
+        translate( [ 2 , 85 , 31 ] ) cube( [ 6 , 7 , 4] ); 
+        translate( [ 4 , 88.5 , 35 ] ) cylinder( h = 3, r1=2.5, r2=1, $fn=30);   
+
+        // x-axis cables entry hole body
+        translate( [ 89 , 2 , 0 ] ) cylinder( h = 5, r = 6, $fn=6);   
+}
+
+ 
+    module ventilation_holes()
+    {
+     for ( i = [-5 : 8] ){
+      translate([46 + (i*5.5),10.5,-1]) cube([3.65,19+49.0,1.2]);
+      translate([46 + (i*5.5),10.5,-1]) cube([3.65,18,10]);
+      translate([46 + (i*5.5),10.5+25,-1]) cube([3.65,18,10]);
+      translate([46 + (i*5.5),10.5+50,-1]) cube([3.65,18,10]);
+    }
+
+}
+
+
+module cutouts(){
+    // side     
+    translate( [ 12 , 19 , 1 ] ) cube( [ 85.5 , 51 , 3 ] );   
+
+    // Einsy M3 screws
+    translate( [ 7.5 , 14 , -1 ] ) cylinder( h = 10, r = 1.9, $fn=30);  
+    translate( [ 102.5 , 14 , -1 ] ) cylinder( h = 10, r = 1.9, $fn=30);  
+    translate( [ 102.5 , 75 , -1 ] ) cylinder( h = 10, r = 1.9, $fn=30);  
+    translate( [ 7.5 , 75 , -1 ] ) cylinder( h = 10, r = 1.9, $fn=30);     
+
+    translate( [ 7.5 , 14 , 6 ] ) cylinder( h = 3, r1 = 1.9, r2=2.4, $fn=30);  
+    translate( [ 102.5 , 14 , 6 ] ) cylinder( h = 3, r1 = 1.9, r2=2.4, $fn=30);  
+    translate( [ 102.5 , 75 , 6 ] ) cylinder( h = 3, r1 = 1.9, r2=2.4, $fn=30);  
+    translate( [ 7.5 , 75 , 6 ] ) cylinder( h = 3, r1 = 1.9, r2=2.4, $fn=30);     
+
+    translate( [ 2 , 0 , 0 ] )ventilation_holes();
+    
+    // frame mounting screws
+    //upper    
+    translate( [ 18.5, -2 , 15.6 ] ) rotate([0,45,0]) cube( [ 15 , 10 , 10] );     
+    translate( [ 16.5 , 8 , 5 ] ) rotate([90,0,0]) cylinder( h = 10, r = 1.6, $fn=30);   
+    translate( [ 16.5 , 9 , 5 ] ) rotate([90,0,0]) cylinder( h = 5, r = 3, $fn=30);   
+    translate( [ 15.15 , -2 , 5 ] ) cube( [ 2.7 , 15 , 10] ); 
+    translate( [ 15.1 , -2 , 7 ] ) rotate([0,5,0]) cube( [ 2.8 , 15 , 10] ); 
+    translate( [ 15.1 , -2 , 7 ] ) rotate([0,-5,0]) cube( [ 2.8 , 15 , 10] ); 
+
+
+    //lower
+    translate( [ 110.5 , 9 , 5 ] ) rotate([90,0,0]) cylinder( h = 10, r = 1.6, $fn=30);   
+    translate( [ 110.5 , 9 , 5 ] ) rotate([90,0,0]) cylinder( h = 5, r = 3, $fn=30);       
+    translate( [ 118.5 , -2 , 6 ] ) rotate([0,-45,0]) cube( [ 5 , 15 , 15] ); 
+    translate( [ 94.5 , -2 , 8.5 ] ) rotate([0,45,0]) cube( [ 5 , 8 , 15] ); 
+    translate( [ 0 , -2 , -5 ] ) cube( [ 120 , 15 , 5] ); 
+    translate( [ 109.15 , -2 , 5 ] ) cube( [ 2.7 , 15 , 10] ); 
+    translate( [ 109.3 , -2 , 6.5 ] ) rotate([0,5,0]) cube( [ 2.5 , 15 , 10] ); 
+    translate( [ 109.2 , -2 , 6.5 ] ) rotate([0,-5,0]) cube( [ 2.5 , 15 , 10] ); 
+
+    // USB connector hole
+    translate( [ -1 , 41.5 , 11 ] ) cube( [ 5.5 , 13 , 11 ] );  
+
+    // reset button
+    translate( [ -2 , 65 , 14 ] ) rotate([0,90,0]) cylinder( h = 10, r = 2, $fn=30);  
+
+    // door closing screw
+    translate( [ 58.5 , 88 , -1 ] ) cylinder( h = 43, r = 1.9, $fn=30);  
+
+
+    // heatbed cable opening hole
+    difference()
+    {
+    translate( [ 75.5 , 94 , 24 ] ) rotate([90,90,0]) cylinder( h = 5, r = 7, $fn=6); 
+    translate( [ 71 , 80 , 13.5 ] ) cube( [ 8 , 15 , 5] ); 
+    }
+    translate( [ 73 , 80 , 20.5 ] ) cube( [ 5 , 15 , 15] ); 
+
+
+    // heatbed cable ziptie holes
+    translate( [ 64 , 87 , 30 ] ) cube( [ 4 , 10 , 2 ] );   
+    translate( [ 64 , 87 , 16 ] ) cube( [ 4 , 10 , 2 ] );   
+
+
+
+    // heatbed filament holder hole
+    translate( [ 81 , 89 , 24 ] ) rotate([0,90,0]) cylinder( h = 17, r = 1.8, $fn=30);   
+    translate( [ 81 , 89 , 24 ] ) rotate([0,90,0]) cylinder( h = 2, r = 2, r2=1.8, $fn=30);   
+    translate( [ 70 , 92 , 15 ] ) cube( [ 30 , 10 , 15] ); 
+
+
+    // nut traps HEX  
+    translate( [ 7.5 , 14 , -1 ] ){
+    cylinder( h = 4, r = 3.2, $fn=6);  
+    rotate([0,0,0]) resize([0,2,0]) cylinder( h = 4, r = 3.5, $fn=6);  
+    rotate([0,0,60]) resize([0,2,0]) cylinder( h = 4, r = 3.5, $fn=6);  
+    rotate([0,0,120]) resize([0,2,0]) cylinder( h = 4, r = 3.5, $fn=6);  
+    }
+
+    translate( [ 102.5 , 14 , -1 ] ){
+    cylinder( h = 4, r = 3.2, $fn=6);  
+    rotate([0,0,0]) resize([0,2,0]) cylinder( h = 4, r = 3.5, $fn=6);  
+    rotate([0,0,60]) resize([0,2,0]) cylinder( h = 4, r = 3.5, $fn=6);  
+    rotate([0,0,120]) resize([0,2,0]) cylinder( h = 4, r = 3.5, $fn=6);  
+    }
+
+    translate( [ 102.5 , 75 , -1 ] ){
+    cylinder( h = 4, r = 3.2, $fn=6);  
+    rotate([0,0,0]) resize([0,2,0]) cylinder( h = 4, r = 3.5, $fn=6);  
+    rotate([0,0,60]) resize([0,2,0]) cylinder( h = 4, r = 3.5, $fn=6);  
+    rotate([0,0,120]) resize([0,2,0]) cylinder( h = 4, r = 3.5, $fn=6);  
+    }
+
+    translate( [ 7.5 , 75 , -1 ] ){
+    cylinder( h = 4, r = 3.2, $fn=6);  
+    rotate([0,0,0]) resize([0,2,0]) cylinder( h = 4, r = 3.5, $fn=6);  
+    rotate([0,0,60]) resize([0,2,0]) cylinder( h = 4, r = 3.5, $fn=6);  
+    rotate([0,0,120]) resize([0,2,0]) cylinder( h = 4, r = 3.5, $fn=6);  
+    }
+
+    translate( [ 7.5 , 14 , -1 ] ) cylinder( h = 1.5, r1 = 6, r2=3.2, $fn=6);  
+    translate( [ 102.5 , 14 , -1 ] ) cylinder( h = 1.5, r1 = 6, r2=3.2, $fn=6);  
+    translate( [ 102.5 , 75 , -1 ] ) cylinder( h = 1.5, r1 = 6, r2=3.2, $fn=6);  
+    translate( [ 7.5 , 75 , -1 ] ) cylinder( h = 1.5, r1 = 6, r2=3.2, $fn=6);  
+    translate( [ 58.5 , 88 , -1 ] ) cylinder( h = 4, r = 3.2, $fn=30);   
+
+    // door closing corners
+    translate( [ 8 , 80 , 28 ] ) rotate([0,0,45]) cube( [ 5 , 5 , 10] ); 
+    translate( [ 106 , 81 , 4 ] ) rotate([0,0,45]) cube( [ 5 , 5 , 40] ); 
+
+    // inner edges cutout
+    translate( [ 54 , 79.5 , 2 ] ) rotate([0,0,45]) cube( [ 5 , 5 , 50] ); 
+    translate( [ 70 , 82.5 , 2 ] ) rotate([0,0,45]) cube( [ 5 , 5 , 50] ); 
+    translate( [ 6 , 80 , 7 ] ) rotate([0,0,45]) cube( [ 5 , 5 , 24] ); 
+    translate( [ 5.5 , 4 , 7 ] ) rotate([0,0,45]) cube( [ 3 , 5 , 29] ); 
+
+    // x axis cable hole
+    translate( [ 89 , 2 , -1 ] ) cylinder( h = 10, r = 4, $fn=6);   
+    translate( [ 80 , -5 , -1 ] ) cube( [ 15, 5, 10] ); 
+
+    // large corner coutout
+    translate( [ -27 , 80 , -54 ] ) rotate([50,0,45]) cube( [ 50, 50, 50] ); 
+    translate( [ 137.5 , 60 , -10 ] ) rotate([0,0,45]) cube( [ 50, 50, 50] ); 
+
+
+}
+
+// extruder cable holder
+module ext_cable_holder()
+{
+    difference()
+    {
+        // body
+        union(){
+            rotate([90,0,0]) translate([-8, 26, -28]) rotate([0,90,0]) cylinder( h = 4, r1 = 8, r2=11, $fn=6);    
+            rotate([90,0,0]) translate([-4, 26, -28]) rotate([0,90,0]) cylinder( h = 4, r1 = 11, r2=11, $fn=6);    
+            rotate([90,0,0]) translate( [ 1.5 , 26 , -28 ] ) rotate([0,90,0]) cylinder( h = 10, r1 = 13, r2=7.5, $fn=6);
+            translate( [-4, 28, 16.5 ] ) rotate([0,45,0]) cube( [ 6 , 5.5 , 7 ] );          
+        }
+        
+        // upper cut
+        translate( [ -15 , 13 , 15] ) cube( [ 15 , 15 , 25 ] );  
+        // lower cut
+        translate( [ 1.5 , 26 , 10] ) cube( [ 15 , 15 , 26 ] );  
+     
+        // ziptie holder
+        difference(){
+            rotate([90,0,0]) translate([-4, 26, -28]) rotate([0,90,0]) cylinder( h = 3.5, r = 8.5,  $fn=30);    
+            rotate([90,0,0]) translate([-5, 26, -28]) rotate([0,90,0]) cylinder( h = 5.5, r = 6.2,  $fn=30);    
+            }
+    }
+}
+
+
+module rambo_cover()
+{
+    //ext_cable_holder();   
+    difference(){
+    main_body();
+    cutouts();
+        
+    // main hole
+    translate( [ -10 , 28 , 26 ] ) rotate([0,90,0]) cylinder( h = 24, r = 6.8, $fn=30);   
+    // cable opening slot
+    translate( [ -15 , 25 , 30 ] ) cube( [ 30 , 6 , 10 ] ); 
+    
+    
+    }
+}
+
+
+difference()
+{
+    union()
+            {
+            rambo_cover();
+         
+            // inner extruder cable holder    
+            difference()
+            {
+            rotate([90,0,0]) translate( [ 1.5 , 26 , -28 ] ) rotate([0,90,0]) cylinder( h = 10, r1 = 13, r2=8, $fn=6);
+            translate( [ 0 , 13 , 14] ) cube( [ 15 , 15 , 25 ] );  
+            translate( [ 0 , 25 , 35] ) cube( [ 15 , 15 , 10 ] );  
+            translate( [ -5 , 28 , 26 ] ) rotate([0,90,0]) cylinder( h = 20, r1 = 7, r2=6, $fn=30); 
+            translate( [ -15 , 26 , 30 ] ) cube( [ 30 , 5 , 6 ] ); 
+            }
+            
+            difference()
+            {
+                union()
+                {
+                translate( [ 4.5 , 31.2 , 26 ] ) rotate([0,90,0]) cylinder( h = 7, r1 = 4.2, r2=4,$fn=6); 
+                translate( [ 4.5 , 31 , 22.5] ) cube( [ 7 , 3 , 7 ] );    
+                translate( [ 4.5 , 31.1 , 20] ) cube( [ 7 , 2 , 7 ] );    
+                }
+                translate( [ -5 , 31.2 , 26 ] ) rotate([0,90,0]) cylinder( h = 20, r = 1.75, $fn=30);   
+                translate( [ 4, 31.2 , 26 ] ) rotate([0,90,0]) cylinder( h =3, r1 = 1.9, r2=1.75, $fn=30);   
+                translate( [ 2.8 , 26 , 22.5] ) rotate([0,0,-20]) cube( [ 9 , 3 , 7 ] );    
+            }
+            
+            
+            difference()
+            {
+                union()
+                {
+                    rotate([90,0,0]) translate([-9, 26, -28]) rotate([0,90,0]) cylinder( h = 4, r1 = 10, r2=13, $fn=6);    
+                    rotate([90,0,0]) translate([-5, 26, -28]) rotate([0,90,0]) cylinder( h = 5, r=13, $fn=6);    
+                }
+            
+                    translate( [ -10 , 28 , 26 ] ) rotate([0,90,0]) cylinder( h = 24, r = 6.8, $fn=30); 
+                    translate( [ -15 , 26 , 30 ] ) cube( [ 30 , 5 , 10 ] ); 
+                    translate( [ -15 , 15, 30 ] ) cube( [ 15 , 30 , 10 ] ); 
+                
+                // ziptie holder
+                difference()
+                {
+                    rotate([90,0,0]) translate([-4, 26, -28]) rotate([0,90,0]) cylinder( h = 3.5, r = 10,  $fn=30);    
+                    rotate([90,0,0]) translate([-5, 26, -28]) rotate([0,90,0]) cylinder( h = 5.5, r = 7.7,  $fn=30);    
+                }
+            }
+            
+            difference()
+            {
+                translate( [ -5 , 22, 15.6 ] ) rotate([0,45,0]) cube( [ 10 , 12 , 10 ] ); 
+                translate( [ 0 , 21, 8 ] )  cube( [ 10 , 14 , 15 ] ); 
+                translate( [ -5 , 21, 16 ] )  cube( [ 10 , 14 , 15 ] ); 
+            }
+            
+            
+            
+        }
+    
+    translate( [ -16.2 , 18, 34 ] ) rotate([0,45,0]) cube( [ 10 , 20 , 10 ] ); 
+    translate( [ -16.2 , 28, 31 ] ) rotate([45,0,0]) cube( [ 40 , 10 , 10 ] ); 
+    
+    //BottomCubic();
+    translate( [ 14.5, 10, -2 ] ) cube( [ 4 , 24 , 10 ] ); 
+    translate( [ 16.5, 10, -2 ] ) cylinder( h = 20, r = 2, $fn=30);  
+    translate( [ 16.5, 34, -2 ] ) cylinder( h = 20, r = 2, $fn=30);  
+    
+    // screw body edge
+    translate( [ 65 ,74.2 , 2] ) rotate([0,0,45]) cube( [ 10 , 10 , 50 ] );     
+    
+    // lightening slots
+    translate( [ 100 ,21 , 2] ) cube( [ 5 , 48 , 5 ] );     
+    translate( [ 3 ,21 , 2] ) cube( [ 4.5, 48 , 5 ] );     
+
+    // bottom holes print supports
+    translate( [ 7.5 , 14 ,0] ){
+    translate( [ 0 , 0 , 2.5 ] ) cube([3.2,5.6,2], center=true);
+    translate( [ 0 , 0 , 3 ] ) cube([3.2,3.8,2], center=true);
+    }
+
+    translate( [ 102.5 , 14 ,0] ){
+    translate( [ 0 , 0 , 2.5 ] ) cube([3.2,5.6,2], center=true);
+    translate( [ 0 , 0 , 3 ] ) cube([3.2,3.8,2], center=true);
+    }
+
+    translate( [ 102.5 , 75 ,0] ){
+    translate( [ 0 , 0 , 2.5 ] ) cube([3.2,5.6,2], center=true);
+    translate( [ 0 , 0 , 3 ] ) cube([3.2,3.8,2], center=true);
+    }
+
+    translate( [ 7.5 , 75 ,0] ){
+    translate( [ 0 , 0 , 2.5 ] ) cube([3.2,5.6,2], center=true);
+    translate( [ 0 , 0 , 3 ] ) cube([3.2,3.8,2], center=true);
+    }
+
+    translate( [ 58.5 , 88 ,0] ){
+       intersection(){cylinder(r=3.2, h=10, $fn=30);
+    translate( [ 0 , 0 , 2.5 ] ) cube([3.8,8,2], center=true);}
+    translate( [ 0 , 0 , 3 ] ) cube([3.8,3.8,2], center=true);
+    }
+
+    translate([21,81,-5]) cylinder( h = 24, r = 0.8, $fn=30);   
+    translate([21+58,81,-5]) cylinder( h = 24, r = 0.8, $fn=30);   
+
+
+    translate([115,68,1.5]) rotate([0,0,90]) linear_extrude(height = 0.8) 
+    { text("R1",font = "helvetica:style=Bold", size=6, center=true); }    
+}
+
+
+
diff --git a/Printed-Parts/scad/Einsy-doors.scad b/Printed-Parts/scad/Einsy-doors.scad
new file mode 100644
index 0000000..809697c
--- /dev/null
+++ b/Printed-Parts/scad/Einsy-doors.scad
@@ -0,0 +1,129 @@
+// PRUSA iteration4
+// Einsy doors
+// GNU GPL v3
+// Josef Průša <iam@josefprusa.cz> and contributors
+// http://www.reprap.org/wiki/Prusa_Mendel
+// http://prusamendel.org
+
+module body()
+{
+    // side panels
+    cube([105.5,87.5,1.5]);  
+    cube([105.5,2,16]);  
+    cube([2,87.5,16]);   
+
+    // corner reinforcement
+    translate([98,1,0]) cube([7.5,5,16]);   
+    translate([0.5,0.5,0]) cube([5,6.5,16]);  
+    translate([1,0,0]) cube([10,87.5,6]);   
+    translate([99.5,0,0] ) cube([6,87.5,7]); 
+    translate([10,0,0]) cube([6,5,6]);   
+
+    // screw thread body
+    translate([54,2,0]) cube([9.5,6,16]); 
+
+    // rounded side
+    translate([0,87.5,4.5]) rotate([0,90,0]) cylinder( h=105.5, r=4.5, $fn=30);
+
+    // upper hinge reinforcement
+    translate([0.5,69,-9]) rotate([20,0,0]) cube([26,20,10]); 
+    
+    // door closing
+    translate([4,3.5,12.8]) rotate([0,0,0]) cylinder( h=3.2, r1=1.8, r2=3.5, $fn=30);  
+    translate([102,3.5,12.8]) rotate([0,0,0]) cylinder( h=3.2, r1=1.8, r2=3.5, $fn=30); 
+}
+
+module ventilation_holes()
+    {
+    for ( i = [0 : 9] )
+    {
+        translate([40 + (i*6),10.5,-1]) cube([3.65,19+50,1.2]);
+        translate([40 + (i*6),10.5,-1]) cube([3.65,19,10]);
+        translate([40 + (i*6),10.5+25,-1]) cube([3.65,19,10]);
+        translate([40 + (i*6),10.5+50,-1]) cube([3.65,19,10]);
+    }
+    for ( i = [0 : -4] )
+    {
+      translate([40 + (i*6),10.5,-1]) cube([3.65,19+50,1.2]);
+    }
+    for ( i = [-6 : -7] )
+    {
+      translate([46 + (i*6),20.5,-1]) cube([3.65,19+40,1.2]);
+    }
+    
+    translate([15,10,1]) cube([20,55,1.5]);  
+}
+
+module cutouts()
+{
+    // door closing screw
+    translate([58.5,4,1]) cylinder( h = 17, r = 1.8, $fn=30);  
+    translate([58.5,4,14.5]) cylinder( h = 2.6, r1 = 1.8, r2=2.2, $fn=30); 
+    translate([58.5,4,11.5])
+    {
+        translate([0,0,2.5]) cube([5.7,3.8,1], center=true);
+        translate([0,0,3]) cube([3.8,3.8,1], center=true);
+    }
+
+    ventilation_holes();
+    
+    // rounded side cutoff    
+    translate([26.5,87.5,4.5]) rotate([0,90,0]) cylinder( h = 73, r = 3.5, $fn=30);   
+    translate([26.5,80,5]) cube([73,19,10]); 
+    translate([26.5,82.5,1]) cube([73,5,10]); 
+    
+    // upper hinge cut
+    translate([0,60,-10]) cube([30,30,10]);  
+    translate([-1,87.5,0]) cube([22.5,10,10]); 
+
+    // upper hinge 
+    translate([2,80,6]) cube([19.5,10,10]);       
+    translate([-2,89.7,3]) rotate([70,0,0]) cube([19.5,10,5]);     
+    translate([-5,87.5,4.5]) rotate([0,90,0]) cylinder( h = 26.5, r = 2.5, $fn=30);  
+
+    // hinge hole
+    translate([-5,87.5,4.5]) rotate([0,90,0]) cylinder( h = 120, r = 2.6, $fn=30);  
+
+    // door closing 
+    translate([4,3.5,12.9]) rotate([0,0,0]) cylinder( h = 3.2, r1 = 1.2, r2= 2.8, $fn=30);  
+    translate([102,3.5,12.9]) rotate([0,0,0]) cylinder( h = 3.2, r1 = 1.2, r2= 2.8, $fn=30);  
+
+    // M3 nut
+    translate([55.65,0.5,12]) cube([5.7,10,2.2]);  
+
+    // side panel lightning slot
+    translate([2,10,3] ) cube([7,65,5]);  
+    translate([101,10,3] ) cube([3,70,5]);  
+
+    // corners - cut
+    translate([53,3,1.5]) rotate([0,0,70]) cube([10,10,50]);  
+    translate([61,12,1.5]) rotate([0,0,-70]) cube([10,10,50]);  
+    translate([16,2,1.5]) rotate([0,0,45]) cube([5,5,50]);  
+
+}
+
+module Einsy_doors()
+{
+difference()
+{
+    body();
+    cutouts();
+    // large corner cut
+    translate( [0 , -20, -3] ) rotate([0,45,45]) cube( [ 30, 30 , 20 ] );  
+
+    translate([30,79,1]) rotate([0,0,-90]) linear_extrude(height = 0.8) 
+    { text("R1",font = "helvetica:style=Bold", size=6, center=true); }    
+}
+}
+ 
+Einsy_doors();
+    
+    
+    
+    
+    
+    
+    
+    
+    
+    
\ No newline at end of file
diff --git a/Printed-Parts/scad/Einsy-hinges.scad b/Printed-Parts/scad/Einsy-hinges.scad
new file mode 100644
index 0000000..24c8afe
--- /dev/null
+++ b/Printed-Parts/scad/Einsy-hinges.scad
@@ -0,0 +1,47 @@
+// PRUSA iteration4
+// Einsy cover hinges
+// GNU GPL v3
+// Josef Průša <iam@josefprusa.cz> and contributors
+// http://www.reprap.org/wiki/Prusa_Mendel
+// http://prusamendel.org
+
+module upper_hinge()
+{
+difference()    
+{
+    union(){
+     // body
+     cylinder( h = 26, r = 2.4, $fn=30); 
+     translate([0,0,26]) cylinder( h = 2, r1 = 2.4, r2 = 1.8, $fn=30); 
+     translate( [ -5 , -11 , 0 ] ) cube( [ 7 , 11 , 21 ] );  
+    }
+     // M3 screw hole
+     translate( [ -12.5 , -2.5 , 17 ] ) rotate( [0,90,0] ) cylinder( h = 20, r = 1.75, $fn=30);  
+     translate( [ -1.5 , -2.5 , 17 ] ) rotate( [0,90,0] ) cylinder( h = 9, r = 3, $fn=30); 
+     // angle cut
+     translate([-2.9,-20,-1]) rotate([0,0,60]) cube([25,5,26]);   
+}
+}
+
+module lower_hinge()
+{
+difference()
+{   
+   union(){ 
+    // body   
+    translate( [ 0 , 6 , 0 ] ) cylinder( h = 15, r = 2.4, $fn=30); 
+    translate( [ 0 , 6 , 0 ] ) cylinder( h = 10, r = 2.8, $fn=30);  
+    translate( [ 0 , 6 , 15 ] ) cylinder( h = 2, r1 = 2.4, r2=1.8, $fn=30);  
+    translate( [ -5 , 6 , 0 ] ) cube( [ 7 , 11 , 10 ] ); 
+   }
+    // M3 screw
+    translate( [ -0.5 , 8.5 , 4 ] ) rotate( [0,90,0] ) cylinder( h = 20, r = 3, $fn=30); 
+    translate( [ -12 , 8.5 , 4 ] ) rotate( [0,90,0] ) cylinder( h = 20, r = 1.75, $fn=30); 
+    // angle cut
+    translate([-5,20,-1]) rotate([0,0,-60]) cube([20,5,20]);   
+}
+}
+
+
+upper_hinge();
+lower_hinge();
\ No newline at end of file
diff --git a/Printed-Parts/scad/LCD-cover-ORIGINAL-MK3.scad b/Printed-Parts/scad/LCD-cover-ORIGINAL-MK3.scad
new file mode 100644
index 0000000..8650eab
--- /dev/null
+++ b/Printed-Parts/scad/LCD-cover-ORIGINAL-MK3.scad
@@ -0,0 +1,194 @@
+// PRUSA iteration4
+// LCD cover
+// GNU GPL v3
+// Josef Průša <iam@josefprusa.cz> and contributors
+// http://www.reprap.org/wiki/Prusa_Mendel
+// http://prusamendel.org
+
+
+module main_body()
+{
+    difference() 
+    {
+        union() 
+        {
+            // main body
+            translate( [ -77 , -4.5 , 0 ] ) cube( [ 155 , 59.8 , 2 ] ); 
+            translate( [ -77 , -4.5 , 0 ] ) rotate([35,0,0]) cube( [ 155 , 2 , 20.08 ] );
+            translate( [ -77 , -3.5 , -1 ] ) rotate([35,0,0]) cube( [ 7 , 5 , 15 ] );
+            translate( [ 71 , -3.5 , -1 ] ) rotate([35,0,0]) cube( [ 7 , 5 , 15 ] );
+            translate( [ -77 , -14.7 , 14.2 ] )  cube( [ 155 , 2 , 11.8 ] );
+            translate( [ -77 , 54 , 0 ] ) cube( [ 155 , 2 , 17 ] );
+            
+            // M3 hole body
+            translate( [ 73.5 , 43.3 , 0.5 ] ) rotate([0,0,90])  cylinder( h = 14, r = 4, $fn=6);  
+            translate( [ -72.5 , 43.5 , 0.5 ] ) rotate([0,0,90])  cylinder( h = 14, r = 4, $fn=6);  
+        }
+        
+        // LCD window
+        translate( [ -61.5 , 1 , 1.2 ] ) cube( [ 98.5 , 42 , 10 ] ); 
+        translate( [ -54.5 , 8 , -1 ] ) cube( [ 85 , 30.5 , 10 ] );  
+
+        // buzzer holes
+        translate( [ 55 , 1.5 , -1 ] ) cube( [ 1.3 , 4 , 10 ] );  
+        translate( [ 57 , 1.5 , -1 ] ) cube( [ 1.3 , 4 , 10 ] );  
+        translate( [ 59 , 1.5 , -1 ] ) cube( [ 1.3 , 4 , 10 ] );  
+        translate( [ 61 , 1.5 , -1 ] ) cube( [ 1.3 , 4 , 10 ] );  
+        translate( [ 63 , 1.5 , -1 ] ) cube( [ 1.3 , 4 , 10 ] );  
+        translate( [ 65 , 1.5 , -1 ] ) cube( [ 1.3 , 4 , 10 ] );  
+        translate( [ 67 , 1.5 , -1 ] ) cube( [ 1.3 , 4 , 10 ] );  
+
+        // buzzer holes corners
+        translate( [ 66.25 , 1.5 , -0.5 ] ) rotate([0,45,0]) cube( [ 2 , 4 , 2 ] );  
+        translate( [ 64.25 , 1.5 , -0.5 ] ) rotate([0,45,0]) cube( [ 2 , 4 , 2 ] );  
+        translate( [ 62.25 , 1.5 , -0.5 ] ) rotate([0,45,0]) cube( [ 2 , 4 , 2 ] );  
+        translate( [ 60.25 , 1.5 , -0.5 ] ) rotate([0,45,0]) cube( [ 2 , 4 , 2 ] );  
+        translate( [ 58.25 , 1.5 , -0.5 ] ) rotate([0,45,0]) cube( [ 2 , 4 , 2 ] );  
+        translate( [ 56.25 , 1.5 , -0.5 ] ) rotate([0,45,0]) cube( [ 2 , 4 , 2 ] );  
+        translate( [ 54.25 , 1.5 , -0.5 ] ) rotate([0,45,0]) cube( [ 2 , 4 , 2 ] );  
+
+        // knob hole
+        translate( [ 62.5 , 21 , -1 ] ) cylinder( h = 10, r = 6, $fn=30);
+        translate( [ 62.5 , 21 , -1.2 ] ) cylinder( h = 2, r1 = 7, r2 = 6, $fn=30);
+
+        // reset button cutout
+        translate( [ 44 , 26 , -1 ] ) cube( [ 1 , 6 , 9 ] );  
+        translate( [ 48 , 26 , -1 ] ) cube( [ 1 , 2.5 , 9 ] );  
+        translate( [ 68.5 , 36 , -1 ] ) cube( [ 1 , 8 , 9 ] );  
+        translate( [ 56 , 43 , -1 ] ) cube( [ 13.5 , 1 , 9 ] ); 
+        translate( [ 50.5 , 30 , -1 ] ) cube( [ 13 , 1 , 9 ] ); 
+        translate( [ 44.7 , 31.28 , -1 ] ) rotate([0,0,45]) cube( [ 17 , 1 , 9 ] );  
+        translate( [ 63.5 , 30 , -1 ] ) rotate([0,0,45]) cube( [ 8.5 , 1 , 9 ] );  
+        translate( [ 48.7 , 27.8 , -1 ] ) rotate([0,0,45]) cube( [ 3.55 , 1 , 9 ] );
+
+        // rear support cutout
+        translate( [ -64.5 , -12.7 , 14 ] ) cube( [ 10 , 3 , 16 ] );  
+        translate( [ 55.5 , -12.7 , 14 ] ) cube( [ 10 , 3 , 16 ] );  
+
+    }
+}
+
+module pcb_clip()
+{
+    difference()
+    {
+    union()
+        {
+            translate( [ -3 , -12 , 17.5 ] ) cube( [ 7 , 4 , 5 ] ); 
+            translate( [ -3 , -10.6 , 12.5 ] ) cube( [ 1 , 2.6 , 7 ] );  
+            translate( [ 3 , -10.6 , 12.5 ] ) cube( [ 1 , 2.6 , 7 ] );  
+        }
+        translate( [ -4 , -8 , 18.5 ] ) rotate([30,0,0]) cube( [ 10 , 6 , 6 ] );  
+        translate( [ 2.5 , -12 , 14.5 ] ) cube( [ 1 , 4 , 0.2 ] );  
+        translate( [ -2.5 , -12 , 14.5 ] ) cube( [ 1 , 4 , 0.2 ] );  
+        translate( [ 2.5 , -12 , 17.3 ] ) cube( [ 1 , 4 , 0.2 ] );  
+        translate( [ -2.5 , -12 , 17.3 ] ) cube( [ 1 , 4 , 0.2 ] );          
+    }
+}
+
+
+
+difference()
+{
+    union()
+    {
+
+    pcb_clip();
+    main_body();
+
+    // reset button
+    translate( [ 62.5 , 37.3 , 0 ] ) cylinder( h = 7.2, r = 3.5, $fn=30); 
+
+    //left side
+    translate( [ -77 , -14.7 , 0 ] ) cube( [ 1.5 , 70.7 , 26 ] );  
+    translate( [ -76.5 , -15 , 0 ] ) cube( [ 4 , 70 , 14.6 ] );  
+
+    //right side
+    translate( [ 76.5 , -14.7 , 0 ] ) cube( [ 1.5 , 70.7 , 26 ] ); 
+    translate( [ 73.5 , -14 , 0 ] ) cube( [ 4 , 70 , 14.5 ] );  
+
+    //rear side reinforcement
+    translate( [ -54.5 , -11.7 , 8 ] ) cube( [ 110 , 4 , 6.5 ] );  
+    translate( [ 65.5 , -11.7 , 8 ] ) cube( [ 12 , 4 , 6.5 ] );  
+    translate( [ 65.5 , -13 , 14 ] ) cube( [ 12 , 2 , 12 ] );  
+    translate( [ -76.5 , -11.7 , 8 ] ) cube( [ 12 , 4 , 6.5 ] );  
+    translate( [ -76.5 , -14.7 , 14.5 ] ) cube( [ 12 , 4 , 11.5 ] );  
+    translate( [ -44 , -14.7 , 14.5 ] ) cube( [ 89 , 4 , 11.5 ] );  
+    translate( [ -43.5 , -10.7 , 15 ] ) rotate([90,0,0]) cylinder( h = 2, r = 11, $fn=60);  
+    translate( [ 44.5 , -10.7 , 15 ] ) rotate([90,0,0]) cylinder( h = 2, r = 11, $fn=60);  
+
+    //front left side reinforcement
+    difference()
+    {
+        union()
+            {
+                translate( [ -77 , 41.3 , 0 ] ) cube( [ 15 , 14 , 25 ] );  
+                translate( [ -77 , 46.3 , 14 ] ) cube( [ 15 , 9 , 3 ] );    
+            }
+        translate( [ -64.5 , 40 , -3 ] ) cube( [ 4 , 8 , 40 ] );  
+        translate( [ -75.5 , 40.3 , 14.5 ] ) cube( [15 , 6.5 , 25 ] ); 
+    }
+
+
+    //front right side reinforcement
+    difference()
+        {
+            translate( [ 38 , 41.2 , 0 ] ) cube( [ 40 , 14 , 26 ] );  
+            translate( [ 55 , 44.5 , 0 ] ) cube( [ 10.5 , 3.7 , 30 ] );  
+            translate( [ 44 , 39.5 , 0 ] ) cube( [ 25.5 , 5 , 30 ] );  
+            translate( [ 35 , 39.3 , 14.5 ] ) cube( [ 42.5 , 7 , 15 ] );  
+            translate( [ 49 , 43.2 , 25 ] ) rotate([0,60,0]) cube( [ 12 , 5 , 10 ] );  
+        }
+    }
+
+    // SD card opening
+    translate( [ -80 , 9 , 16.5 ] ) cube( [ 10 , 28 , 4.5 ] );  
+
+    // front and rear angle
+    translate( [ -81 , -9.3 , -17 ] ) rotate([35,0,0]) cube( [ 164 , 14 , 54.08 ] );  
+    translate( [ -78 , 72.7 , -3 ] ) rotate([45,0,0]) cube( [ 160 , 14 , 54.08 ] );  
+
+    // M3 screw thread
+    translate( [ 72.5 , 43.2 , 3 ] ) cylinder( h = 20, r = 1.4, $fn=30);  
+    translate( [ -72.5 , 42.7 , 3 ] ) cylinder( h = 20, r = 1.4, $fn=30); 
+    translate( [ 72.5 , 43.2 , 11.7 ] ) cylinder( h = 3, r1 = 1.4, r2=2.2, $fn=30);  
+    translate( [ -72.5 , 42.7 , 11.7 ] ) cylinder( h = 3, r = 1.4, r2=2.2, $fn=30); 
+
+    // ORIGINAL PRUSA text
+    translate([-67,51,0.6]) rotate([180,0,0]) linear_extrude(height = 2) 
+    { text("ORIGINAL",font = "helvetica:style=Bold", size=7, center=true); }
+    translate([-18,51,0.6]) rotate([180,0,0]) linear_extrude(height = 2) 
+    { text("PRUSA",font = "helvetica:style=Bold", size=11, center=true); }
+    translate( [ -66 , 40.5 , -0.4 ] )  cube( [ 45 , 1.6 , 1 ] );  
+    translate( [ -66 , 41.3 , -0.4 ] ) cylinder( h = 1, r = 0.8, $fn=30);  
+    translate( [ -21 , 41.3 , -0.4 ] ) cylinder( h = 1, r = 0.8, $fn=30);  
+
+    // front cleanup
+    translate( [ -100 , -64 , 0 ] ) cube( [ 200 , 50 , 50 ] ); 
+
+    // X sign on reset button
+    translate( [ 63 , 34 , -1 ] ) rotate([0,0,45]) cube( [ 2, 8, 2 ] );  
+    translate( [ 57.5 , 35.5 , -1 ] ) rotate([0,0,-45]) cube( [ 2, 8, 2 ] );  
+
+    // corners
+    translate( [ 73 , -5 , -1 ] ) rotate([0,45,0]) cube( [ 7, 80, 7 ] );  
+    translate( [ -82 , -5 , -1 ] ) rotate([0,45,0]) cube( [ 7, 80, 7 ] );  
+
+    translate( [ -82 , 58 , -5 ] ) rotate([45,0,0]) cube( [ 200, 7, 7 ] );  
+    translate( [ -77 , 51 , -4 ] ) rotate([0,0,45]) cube( [ 8, 8, 50 ] );  
+    translate( [ 78 , 51 , -4 ] ) rotate([0,0,45]) cube( [ 8, 8, 50 ] );  
+    translate( [ 78 , -19 , -4 ] ) rotate([0,0,45]) cube( [ 5, 5, 50 ] );  
+    translate( [ -77 , -19 , -4 ] ) rotate([0,0,45]) cube( [ 5, 5, 50 ] );  
+
+    // LCD corners
+    translate( [ -54.5 , 9.5 , -5.2 ] ) rotate([45,0,0]) cube( [ 85 , 5 , 5 ] );  // LCD window
+    translate( [ -54.5 , 37 , -5.2 ] ) rotate([45,0,0]) cube( [ 85 , 5 , 5 ] );  // LCD window
+    rotate([35,0,0]) translate( [ -78 , -8 , -4 ] ) rotate([0,0,45]) cube( [ 6, 6, 50 ] );  
+    rotate([35,0,0]) translate( [ 79 , -8 , -4 ] ) rotate([0,0,45]) cube( [ 6, 6, 50 ] );  
+    translate( [ -100 , -40 , -50 ] ) cube( [ 200 , 50 , 50 ] ); 
+
+    // version
+    translate([-73,15,4]) rotate([90,0,90]) linear_extrude(height = 2) 
+    { text("R1",font = "helvetica:style=Bold", size=7, center=true); }
+}
+
diff --git a/Printed-Parts/scad/bearing.scad b/Printed-Parts/scad/bearing.scad
new file mode 100644
index 0000000..089808f
--- /dev/null
+++ b/Printed-Parts/scad/bearing.scad
@@ -0,0 +1,83 @@
+// PRUSA iteration3
+// Bearing holders
+// GNU GPL v3
+// Josef Průša <iam@josefprusa.cz> and contributors
+// http://www.reprap.org/wiki/Prusa_Mendel
+// http://prusamendel.org
+
+use <polyholes.scad>
+
+bearing_diameter = 14.95;
+
+module horizontal_bearing_base(bearings=1){
+ translate(v=[0,0,6]) cube(size = [24,8+bearings*25,12], center = true);	
+}
+
+module horizontal_bearing_holes(bearings=1){
+ cutter_lenght = 10+bearings*25;
+ one_holder_lenght = 8+25;
+ holder_lenght = 8+bearings*25;
+ 
+ // Main bearing cut
+ difference(){
+  translate(v=[0,0,12]) rotate(a=[90,0,0]) translate(v=[0,0,-cutter_lenght/2]) cylinder(h = cutter_lenght, r=(bearing_diameter/2)+0.2, $fn=50);
+  // Bearing retainers
+  translate(v=[0,1-holder_lenght/2,3]) cube(size = [24,6,8], center = true);
+  translate(v=[0,-1+holder_lenght/2,3]) cube(size = [24,6,8], center = true);
+ }
+ 
+ // Ziptie cutouts
+ ziptie_cut_ofset = 0;
+ for ( i = [0 : bearings-1] ){
+  // For easier positioning I move them by half of one 
+  // bearing holder then add each bearign lenght and then center again
+  translate(v=[0,-holder_lenght/2,0]) translate(v=[0,one_holder_lenght/2+i*25,0]) difference(){
+   union(){
+    translate(v=[0,2-8.5,12]) rotate(a=[90,0,0]) translate(v=[0,0,0]) cylinder(h = 4, r=11.5, $fn=50);
+    translate(v=[0,2+8.5,12]) rotate(a=[90,0,0]) translate(v=[0,0,0]) cylinder(h = 4, r=11.5, $fn=50);
+   }
+   translate(v=[0,12,12]) rotate(a=[90,0,0]) translate(v=[0,0,0]) cylinder(h = 24, r=9, $fn=50);
+  }
+ }
+ 
+}
+ 
+module horizontal_bearing_holes_nozip(bearings=1){
+ cutter_lenght = 10+bearings*25;
+ one_holder_lenght = 8+25;
+ holder_lenght = 8+bearings*25;
+ 
+ // Main bearing cut
+ difference(){
+  translate(v=[0,0,12]) rotate(a=[90,0,0]) translate(v=[0,0,-cutter_lenght/2]) cylinder(h = cutter_lenght, r=(bearing_diameter/2)+0.2, $fn=50);
+  // Bearing retainers
+  translate(v=[0,1-holder_lenght/2,3]) cube(size = [24,6,8], center = true);
+  translate(v=[0,-1+holder_lenght/2,3]) cube(size = [24,6,8], center = true);
+ }
+ 
+}
+
+
+thinwall = 3;
+bearing_size = bearing_diameter + 2 * thinwall;
+
+module vertical_bearing_base(){
+ translate(v=[-2-bearing_size/4,0,29]) cube(size = [4+bearing_size/2,bearing_size,58], center = true);
+ cylinder(h = 58, r=bearing_size/2, $fn = 90);
+}
+
+module vertical_bearing_holes(){
+  translate(v=[0,0,-1]) poly_cylinder(h = 62, r=(bearing_diameter/2));
+  translate(v=[0,0,-0.1]) cylinder(r1=(bearing_diameter/2)+0.7,r2=(bearing_diameter/2), h=0.5);
+  rotate(a=[0,0,-40]) translate(v=[bearing_diameter/2-2.9,-0.5,0.5]) cube(size = [thinwall*2,1,62]);
+
+}
+
+//difference(){
+//vertical_bearing_base();
+//vertical_bearing_holes();
+//}
+//horizontal_bearing_test();
+//horizontal_bearing_base(1);
+//horizontal_bearing_holes(1);
+horizontal_bearing_holes_nozip(1);
\ No newline at end of file
diff --git a/Printed-Parts/scad/cable-holder.scad b/Printed-Parts/scad/cable-holder.scad
new file mode 100644
index 0000000..6040600
--- /dev/null
+++ b/Printed-Parts/scad/cable-holder.scad
@@ -0,0 +1,85 @@
+// PRUSA iteration4
+// cable holder
+// GNU GPL v3
+// Josef Průša <iam@josefprusa.cz> and contributors
+// http://www.reprap.org/wiki/Prusa_Mendel
+// http://prusamendel.org
+
+
+module zip_main()
+{
+    // ziptie cut for upper cables
+    
+    translate([-10,-30.5,24]) cube([20,2,3]);
+    translate([-6,-30.5,24]) cube([2,20,3]);
+    translate([5,-30.5,24]) cube([2,20,3]);
+    
+    difference()
+    {
+        translate([0.5,-26,24]) rotate([0,0,90]) cylinder( h=3, r=6, $fn=30 );
+        translate([0.5,-26,23]) rotate([0,0,90]) cylinder( h=5, r=4.6, $fn=30 );
+        translate([-10,-35.5,23]) cube([20,5,5]);        
+        translate([-10,-27,23]) cube([20,10,5]);        
+    }
+}
+    
+    
+module zip_ext_cables()    
+{
+    // ziptie cut for lower cables
+    
+    translate([-10,-25.5,24]) cube([20,2,3]);
+    translate([-4.5,-45.5,24]) cube([2,20,3]);
+    translate([3.5,-45.5,24]) cube([2,20,3]);
+}
+
+
+module cable_holder()
+{    
+    difference()
+    {
+        union()
+        {
+            // base block
+            translate([0.5,-26,24]) rotate([0,0,90]) cylinder( h=39.5, r=5, $fn=30 );
+            translate([-4.5,-26,24]) cube([10,9,39.5]);
+            translate([-3,-35,24]) cube([7,10,39.5]);
+        }
+        
+        // screw 
+        translate([0.5,-27,19.5]) rotate([0,0,90]) cylinder( h=42, r=1.75, $fn=30 );
+        translate([0.5,-27,19.5+41]) rotate([0,0,90]) cylinder( h=5, r=3.15, $fn=30 );
+
+        // upper cables cut
+        translate([0.5,-18,23]) rotate([0,5,90]) cylinder( h=41, r=5, $fn=30 );
+        translate([-10,-20,23]) rotate([-5,0,0]) cube([20,9,45]);
+        
+        // lower angled cut
+        translate([-10,-44,23]) rotate([-4,0,0]) cube([20,9,45]);
+        
+        // wires
+        translate([-0.8,-35,23]) rotate([0,4,90]) cylinder( h=41, r=1.25, $fn=30 );
+        translate([1.8,-35,23]) rotate([0,4,90]) cylinder( h=41, r=1.25, $fn=30 );
+
+
+        // ziptie openings
+        translate([0,0,5]) zip_main();
+        translate([0,0,18]) zip_main();
+        translate([0,0,32]) zip_main();
+        translate([0,0,11]) zip_ext_cables();
+        translate([0,0,25]) zip_ext_cables();
+
+        // round edge cut
+        translate([0,1.8,-1.5])
+        difference()
+        {
+            translate([-10,-32,63]) rotate([0,90,0]) cylinder( h=41, r=4, $fn=30 );
+            translate([-10,-32,63]) rotate([0,90,0]) cylinder( h=41, r=2, $fn=30 );
+            translate([-10,-36,53]) rotate([0,0,0]) cube([20,9,10]);
+            translate([-10,-32,58]) rotate([0,0,0]) cube([20,9,10]);
+        }
+
+    }
+}
+
+cable_holder();
\ No newline at end of file
diff --git a/Printed-Parts/scad/extruder-body.scad b/Printed-Parts/scad/extruder-body.scad
new file mode 100644
index 0000000..dc92630
--- /dev/null
+++ b/Printed-Parts/scad/extruder-body.scad
@@ -0,0 +1,383 @@
+// PRUSA iteration4
+// Extruder body
+// GNU GPL v3
+// Josef Průša <iam@josefprusa.cz> and contributors
+// http://www.reprap.org/wiki/Prusa_Mendel
+// http://prusamendel.org
+
+
+module m3head()
+{
+intersection()
+    {
+        translate([30,5,9])cylinder(r=3.1,h = 25, $fn=30); // head cut
+        translate([30,5,17-3.5]) cube([6.2,3.4,1], center=true);
+    }
+    translate([30,5,17-4]) cube([3.4,3.4,1], center=true);
+    translate([30,5,17-3.5])cylinder(r=3.1,h = 20, $fn=30); // head cut
+}
+
+module m3nuthead()
+{
+    intersection()
+    {
+    translate([30,5,9])cylinder(r=3.1,h = 25, $fn=6); // head cut
+    translate([30,5,17-3.5]) cube([6.2,3.4,1], center=true);
+    }
+    translate([30,5,17-4]) cube([3.4,3.4,1], center=true);
+    translate([30,5,17-3.5])cylinder(r=3.1,h = 20, $fn=6); // head cut
+}
+
+module grill()
+{
+    difference()
+        {
+            translate([24,-5,-17]) cylinder( h=17, r=20.4, $fn=50 ); 
+            translate([24,-5,-21]) cylinder( h=23, r=19, $fn=50 ); 
+            translate([23,-30,-30]) cube([30,60,32]);   
+            translate([-11,-30,-30]) cube([30,60,32]);   
+            translate([-19,-20,-30]) cube([60,60,32]);   
+        }
+        translate([23,-24.65,-17]) cylinder( h=17, r=0.72, $fn=50 ); 
+        translate([19,-24.01,-17]) cylinder( h=17, r=0.72, $fn=50 ); 
+}
+
+module pinda_holder()
+{
+        difference()
+        {
+            union()
+            {
+            translate([-32,-45,-20]) cube([18,15,20]);   
+            translate([-26,-18,-3]) cube([9,11,3]);     
+            translate([-23,-38,-3]) cube([6,15,3]);  
+            }
+        translate([-23,-5,-12]) rotate([90,0,0]) cylinder( h=50, r=4.1, $fn=30 ); 
+        translate([-35,-38.5,-5]) rotate([0,90,0]) cylinder( h=25, r=1.7, $fn=30 );
+        
+        translate([-33,-38.5,-5]) rotate([0,90,0]) cylinder( h=6, r=3.1, $fn=30 );
+        
+        translate([-35,-52.5,-24]) rotate([0,0,45]) cube([10,10,30]);   
+        translate([-36.5,-39,-25]) rotate([0,0,45]) cube([20,10,30]);   
+        translate([-11,-36,-26]) rotate([0,0,50]) cube([10,10,23]);   
+        translate([-22.5,-30,-20]) rotate([0,0,45]) cube([10,8,23]);   
+        translate([-35,-29,-30]) rotate([45,0,0]) cube([30,10,10]);   
+        translate([-35,-46,-30]) rotate([45,0,0]) cube([30,10,10]);   
+        translate([-41,-52,-19.5]) rotate([0,45,0]) cube([12,30,10]);  
+        translate([-12.5,-53,-21]) rotate([0,0,45]) cube([10,10,30]);   
+        translate([-10,-54,-25]) rotate([0,0,65]) cube([14.5,10,30]);   
+            
+        translate([-19.6,-41.5,-8.1]) cube([2.4,6,10]);       
+        translate([-24,-48,-10]) cube([1.4,20,12]);       
+        translate([-23.7,-48,-10]) rotate([0,-5,0]) cube([1.4,20,12]);       
+        translate([-25.5,-48,-0]) rotate([0,45,0]) cube([3,30,3]);       
+      
+        translate([-17.5,-37,-22]) cube([5,7,5]);   
+        
+        // hook cut
+        translate([-23,-20,-3.5]) cube([6,8,4.5]);   
+        translate([-26,-10,-3.5]) rotate([0,0,45]) cube([5,5,5]);   
+        translate([-26,-23,-3.5]) rotate([0,0,45]) cube([5,5,5]);  
+       
+        translate([-29,-34,-16]) cube([1,1,15]);   
+        translate([-29,-43,-16]) cube([1,1,15]);   
+        translate([-17,-33,-16]) cube([1,1,15]);   
+        
+        }
+}
+
+
+module extruder_body()
+{
+difference()
+{
+
+        union()
+        {
+            // cables hook above fan
+            difference()
+            {
+                translate([22.5,-3,-17]) cube([9,8.75,17]);  
+                translate([33,-0.0,-21]) rotate([0,0,45]) cube([12,12,22]);  
+            }
+
+            difference()
+            {
+                // base body shape
+                union()
+                {
+                    translate([-17,-36.5,-30.5]) cube([42,86.5,30.5]);
+                    translate([16,-38.5,-20]) rotate([0,0,45]) cube([3,3,20]);  
+                }
+
+                translate([22.5,-3,-20]) cube([9,8.75,20]);  
+
+                //opening to pulleys from motor side
+                translate([4,27,-33]) rotate([0,0,0]) cylinder( h=40, r=12, $fn=30 );  
+                
+                // idler cut
+                difference()
+                {
+                    translate([-39,15,-33.5]) cube([44,24,32]);
+                    difference()
+                    {
+                        translate([-12,5.5,-4.5]) rotate([0,0,30]) cube([12,10,3]);
+                        translate([-39,15,-36]) cube([44,24,32]);
+                    }
+                }
+                translate([-20,9.5,-36.5]) rotate([0,0,30])cube([20,20,32]);
+                translate([-26,29,-36.5]) cube([20,22,32]);
+                translate([-18,24,-36.5]) rotate([0,0,45]) cube([20,20,32]);
+                translate([-26,22,-33.5]) rotate([0,0,45]) cube([20,20,32]);
+                translate([-26,9,-33.5]) rotate([0,0,30]) cube([20,20,32]);
+            }
+
+            // bottom pulley space 
+            difference()
+            {
+                translate([-4,15,-30.5]) cube([26,6.5,30.5]);
+                translate([-8,16.5,-36]) rotate([0,0,45]) cube([10,10,32]);
+            }
+            translate([-8,15,-4]) cube([30,6.5,4]);
+            translate([15.5,-44,-17]) cube([5,8,17]);
+
+            // idler tension screw heads
+            translate([3,18.5,-25]) rotate([0,90,0]) cylinder( h=22, r=3,r2=5, $fn=30 );  
+            translate([3,18.5,-10]) rotate([0,90,0]) cylinder( h=22, r=3,r2=5, $fn=30 );  
+
+            // filament entry to hotend
+            difference()
+            {
+                translate([0,10.5,-26]) rotate([0,0,45]) cube([9,9,15]);
+                translate([-5,25,-17]) rotate([30,0,0]) cube([10,10,10]);            
+                translate([-5,18,-30]) rotate([-45,0,0]) cube([10,10,10]);            
+                translate([-13,14,-26]) cube([10,12,20]);      
+            }
+
+
+            // filament entry 
+            difference()
+            {
+                translate([0,30.5,-26]) rotate([0,0,45]) cube([12,12,21]);
+                translate([-10,19,-13]) rotate([-40,0,0]) cube([20,10,25]);            
+                translate([-5,23,-27]) rotate([-45,0,0]) cube([10,10,10]);            
+                translate([-14,30,-29]) cube([10,12,25]);      
+                translate([3,30,-29]) cube([10,12,30]);      
+                translate([-5,45,-29]) cube([10,12,25]);      
+            }
+
+            
+        }
+    
+
+    translate([4,27,-33]) rotate([0,0,0]) cylinder( h=4, r=15, $fn=30 );
+    translate([4,27,-32]) rotate([0,0,0]) cylinder( h=4, r=13, $fn=30 );
+        
+    // side entry to pulleys
+    translate([5,32,-18]) rotate([0,90,0]) cylinder( h=40, r=8, $fn=6 );  
+    translate([18,32,-18]) rotate([0,90,0]) cylinder( h=10, r1=8, r2=11, $fn=6 );  
+        
+    // cover cutout
+    translate([-18,-39,-49]) cube([44,45,32]);
+    
+        
+    // hotend cooling tube input
+    translate([12,-21.5,-20]) rotate([0,90,0]) cylinder( h=10, r2=20.5, r1=12, $fn=80 ); 
+    translate([1,-20.5,-20.5]) rotate([0,84,0]) cylinder( h=25, r2=17.5, r1=12, $fn=80 ); 
+    translate([-10,-35,-40.55])  cube([30,26,32]);        
+    translate([0,-35,-38.8])  cube([20,14,32]);        
+    
+    // hotend cooling tube OUTPUT
+    difference()
+    {
+        translate([-28,-35,-34]) rotate([0,15,0]) cube([44,26,32]);        
+        translate([-18,-53.5,-30]) rotate([0,0,65]) cube([20,20,32]);        
+    }
+    translate([-10,-35,-17.5]) rotate([0,0,0]) cube([10,26,12]);        
+      
+    // e3d nozzle cut
+    translate([0,-9,-17]) rotate([90,0,0]) cylinder( h=60, r=11.1, $fn=50 );        
+    translate([0,-9,-17]) rotate([90,0,0]) cylinder( h=26, r=11.5, $fn=50 );        
+    translate([0,-3.4,-17]) rotate([90,0,0]) cylinder( h=10, r=8.05, $fn=50 );        
+    translate([0,8,-17]) rotate([90,0,0]) cylinder( h=5.6, r=8.05, $fn=50 );        
+    translate([0,8.9,-17]) rotate([90,0,0]) cylinder( h=3, r=9, $fn=50 );        
+    translate([0,4,-17]) rotate([90,0,0]) cylinder( h=8, r=6.05, $fn=50 );        
+    translate([0,2.5,-17]) rotate([90,0,0]) cylinder( h=2, r1=8.05, r2=7, $fn=50 );        
+
+    // filament PTFE and entry from hotend
+    translate([0,10,-17]) rotate([90,0,0]) cylinder( h=10, r=3.5, $fn=50 );
+    translate([0,30,-17]) rotate([90,0,0]) cylinder( h=80, r=2.1, $fn=50 );
+    translate([0,18,-17]) rotate([90,0,0]) cylinder( h=12, r1=2, r2=4.3, $fn=50 );
+    translate([0,16,-17]) rotate([110,0,0]) cylinder( h=13, r1=2, r2=4, $fn=50 );
+    translate([0,16,-17]) rotate([100,0,0]) cylinder( h=13, r1=2, r2=4, $fn=50 );
+    translate([0,80,-17]) rotate([90,0,0]) cylinder( h=80, r=1.0, $fn=50 );
+    
+    // upper PTFE housing
+    translate([0,50.5,-17]) rotate([90,0,0]) cylinder( h=4, r=2.1, $fn=50 );
+    translate([0,49,-17]) rotate([90,0,0]) cylinder( h=4.5, r=1.5, $fn=50 );
+    translate([0,51,-17]) rotate([90,0,0]) cylinder( h=22, r=1.1, $fn=50 );
+    translate([0,41,-17]) rotate([90,0,0]) cylinder( h=5, r1=2, r2=1, $fn=50 );
+    translate([1,46.5,-17.5]) cube([2,4,1]);  
+    translate([1,48,-17.5]) rotate([-30,0,0]) cube([2,4,1]);  
+    translate([0,10,-17]) rotate([90,0,0]) cylinder( h=3, r=7, $fn=50 );
+    
+    // motor screws
+    translate([-11.5,11.5,-40]) rotate([0,0,0]) cylinder( h=60, r=1.7, $fn=30 );    
+    translate([19.5,11.5,-40]) rotate([0,0,0]) cylinder( h=60, r=1.7, $fn=30 );    
+    translate([-11.5,42.5,-40]) rotate([0,0,0]) cylinder( h=60, r=1.65, $fn=30 );    
+    translate([19.5,42.5,-40]) rotate([0,0,0]) cylinder( h=60, r=1.7, $fn=30 );     
+
+    translate([-11.5,11.5,-3.75]) rotate([0,0,0]) cylinder( h=5, r=3.1, $fn=30 );    
+    translate([19.5,11.5,-3.75]) rotate([0,0,0]) cylinder( h=5, r=3.1, $fn=30 );    
+    translate([-11.5,42.5,-3]) rotate([0,0,0]) cylinder( h=4, r=3.1, $fn=30 );    
+    translate([19.5,42.5,-4.5]) rotate([0,0,0]) cylinder( h=5, r1=1.7,r2=2.3, $fn=30 ); 
+
+    // better printing 
+    translate([-10.5,6.5,-17]) m3head();
+    translate([-41.5,6.5,-17]) m3head();
+    translate([-41.5,37.5,-16.2]) m3head();
+    translate([-13,-2,-26]) m3nuthead();
+    
+    translate([-8,16.5,-33.5]) rotate([0,0,45]) cube([10,10,32]);
+    translate([-18,16.5,-33.5]) cube([10,10,32]);
+    
+    // hold together screws
+    translate([-20.5,-3.2,-14]) cube([12,5.6,2.1]);
+    translate([-20.5,-3.2,-5]) cube([12,5.6,2.1]);
+    translate([-20.5,-2,-14.3]) cube([12,3,2.3]);
+    translate([-20.5,-2,-5.3]) cube([12,3,2.3]);
+   
+    translate([-11.5,-0.5,-35]) cylinder( h=65, r=1.7, $fn=30 ); 
+    translate([-11.5,-0.5,-2]) cylinder( h=5, r1=1.7, r2=2.2,$fn=30 ); 
+    translate([11.5,-0.5,-30]) cylinder( h=60, r=1.7, $fn=30 );
+    translate([11.5,-0.5,-2]) cylinder( h=5, r1=1.7, r2=2.2,$fn=30 );
+    
+    translate([11.5,-0.5,-16]) cylinder( h=5, r1=3.5, r2=3.1, $fn=6 );
+    translate([11.5,-0.5,-21]) cylinder( h=7, r=3.5, $fn=6 );
+    
+
+    // idler tension screws
+    translate([9,18.5,-25]) rotate([0,90,0]) cylinder( h=21, r=2.7, $fn=30 );  
+    translate([-18,18.5,-25]) rotate([0,90,0]) cylinder( h=45, r=1.7, $fn=30 );
+    translate([19,18.5,-25]) rotate([0,90,0]) cylinder( h=10, r=4, $fn=30 );  
+    translate([9,18.5,-10]) rotate([0,90,0]) cylinder( h=21, r=2.7, $fn=30 ); 
+    translate([-18,18.5,-10]) rotate([0,90,0]) cylinder( h=45, r=1.7, $fn=30 );  
+    translate([19,18.5,-10]) rotate([0,90,0]) cylinder( h=10, r=4, $fn=30 ); 
+    
+    // fan cut and screws
+    translate([20.5,-41.5,-30]) cube([15,40,40]);   
+    translate([6,-5.5,-4]) rotate([0,90,0]) cylinder( h=15, r=1.4, $fn=30 );     
+    translate([12,-37.5,-4]) rotate([0,90,0]) cylinder( h=10, r=1.4, $fn=30 );     
+    translate([12,-37.5,-4]) rotate([0,90,0]) cylinder( h=3, r=1.6, $fn=30 );
+    translate([19,-5.5,-4]) rotate([0,90,0]) cylinder( h=2, r1=1.4,r2=2, $fn=30 );     
+    translate([19,-37.5,-4]) rotate([0,90,0]) cylinder( h=2, r1=1.4,r2=2, $fn=30 ); 
+
+    // extruder cover nut
+    translate([17,3,-25]) rotate([0,0,0]) cylinder( h=19, r=1.7, $fn=30 );     
+    translate([17,3,-5]) rotate([0,0,0]) cylinder( h=6, r=3.5, $fn=6 );     
+    translate([17,3,-10]) rotate([0,0,0]) cylinder( h=6, r1=3.1, r2=3.6, $fn=6 );    
+    
+    // cable guide above fan
+    difference()
+    {
+        translate([20.5,-2.5,-25]) cube([4,5,30]);
+        translate([19,-1.5,-25]) rotate([0,0,60]) cube([5,5,30]);
+    }
+   
+    // corners
+    translate([25,43,-40]) rotate([0,0,45]) cube([10,10,50]);
+    translate([-18,43,-40]) rotate([0,0,45]) cube([10,10,50]);
+
+   
+    // filament senzor 
+    translate([2.5,40,-25.2]) cube([3,11,22.4]);
+    
+    
+    translate([6.5,51,-3.9]) rotate([90,0,0]) cylinder( h=11, r=3.1, $fn=30 );
+    
+    difference()
+    {
+    translate([3.5,40,-7]) cube([6,11,12]);
+    translate([6,40,-7]) rotate([0,45,0]) cube([5,12,12]);
+    }
+    
+    translate([3.5,40,-10.5]) rotate([0,-45,0]) cube([2,12,5]);
+    
+    translate([0,40,-7]) cube([4,11,5]);
+    translate([1.5,40,-25.2]) cube([4,11,5]);
+    translate([1.8,40,-21]) cube([4,11,8]);
+    
+    translate([0,52.3,-21]) rotate([50,0,0]) cube([4,2,5]);
+    
+    // filament senzor mounting screw
+    translate([3,45,-9]) rotate([0,90,0]) cylinder( h=12, r=1.4, $fn=30 );       
+    translate([5,45,-9]) rotate([0,90,0]) cylinder( h=4, r=1.6, r2=1.5, $fn=30 );       
+    translate([8.5,45,-9]) rotate([0,90,0]) cylinder( h=1, r=1.6, r2=1.4, $fn=30 );       
+    
+    translate([-7,45,-9]) rotate([0,90,0]) cylinder( h=13, r=1.4, $fn=30 );       
+    translate([-10,45,-9]) rotate([0,90,0]) cylinder( h=13, r=3.3, $fn=30 );       
+    
+    // filament sensor cover screws
+    translate([12,51,-12]) rotate([90,0,0]) cylinder( h=10, r=1.4, $fn=30 );
+    translate([12,51,-12]) rotate([90,0,0]) cylinder( h=4, r1=1.9, r2=1.4,$fn=30 );
+
+    translate([-1,51,-24.5]) rotate([90,0,0]) cylinder( h=10, r=1.4, $fn=30 );
+    translate([-1,51,-24.5]) rotate([90,0,0]) cylinder( h=4, r1=1.9, r2=1.4,$fn=30 );
+
+    // filament sensor window
+    translate([-9.5,43,-17]) rotate([0,90,0]) cylinder( h=13, r=3, $fn=30 );       
+    translate([3.5,38,-1]) cube([5,11,2]);
+    
+}
+    
+    pinda_holder();    
+    translate([5.5,40,-14]) cube([4,10,1]);
+    translate([5.5,40,-13]) rotate([0,45,0]) cube([2,10,2]);
+}
+
+        
+
+
+module final_part()
+{
+    difference()
+    {
+        extruder_body();
+        translate([-35,-29,-30]) rotate([45,0,0]) cube([30,10,10]);   
+
+            //version
+            translate([-4,-34,-0.4]) rotate([0,0,0]) linear_extrude(height = 0.6) 
+            { text("R1",font = "helvetica:style=Bold", size=4, center=true); }    
+            
+        // selective infill
+        translate([-15,-7,-16]) cube([5,0.4,15]);
+    }
+
+    // print supports
+    translate([-28,-35,-0.3]) cube([8,4,0.3]);
+    translate([-28,-44,-0.3]) cube([8,4,0.3]);
+
+    // grill
+    translate([-35.25,10,0]) grill();
+    translate([-35.25,0,0]) grill();
+    translate([-16.5,-34,-12]) cube([4,30,1]);   
+    translate([-16.5,-6,-11.5]) rotate([90,0,0]) cylinder( h=30, r=0.5, $fn=50 ); 
+    translate([-12.5,-6,-11.5]) rotate([90,0,0]) cylinder( h=30, r=0.5, $fn=50 );
+}
+
+
+final_part();
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/Printed-Parts/scad/extruder-cover.scad b/Printed-Parts/scad/extruder-cover.scad
new file mode 100644
index 0000000..8cba435
--- /dev/null
+++ b/Printed-Parts/scad/extruder-cover.scad
@@ -0,0 +1,148 @@
+// PRUSA iteration4
+// Extruder cover
+// GNU GPL v3
+// Josef Průša <iam@josefprusa.cz> and contributors
+// http://www.reprap.org/wiki/Prusa_Mendel
+// http://prusamendel.org
+
+module m3head()
+{
+    intersection()
+    {
+        translate([30,5,9])cylinder(r=3.1,h = 25, $fn=30); // head cut
+        translate([30,5,17-3.5]) cube([6.2,3.4,1], center=true);
+    }
+    translate([30,5,17-4]) cube([3.4,3.4,1], center=true);
+    translate([30,5,17-3.5])cylinder(r=3.1,h = 20, $fn=30); // head cut
+}
+
+module grill()
+{
+difference()
+        {
+            translate([24,-5,-20]) cylinder( h=23, r=20.4, $fn=50 ); 
+            translate([24,-5,-21]) cylinder( h=26, r=19, $fn=50 ); 
+            translate([23,-30,-30]) cube([30,60,35]);   
+            translate([-11,-30,-30]) cube([30,60,35]);   
+            translate([-19,-20,-30]) cube([60,60,35]);   
+        }
+    translate([23,-24.65,-20]) cylinder( h=23, r=0.72, $fn=50 ); 
+    translate([19,-24.01,-20]) cylinder( h=23, r=0.72, $fn=50 ); 
+}
+
+
+translate([-35.25,10,-20]) grill();
+translate([-35.25,0,-20]) grill();
+// horizontal fins
+translate([-16.5,-35,-25]) cube([4,31,1]);   
+translate([-16.5,-6,-24.5]) rotate([90,0,0]) cylinder( h=30, r=0.5, $fn=50 ); 
+translate([-12.5,-6,-24.5]) rotate([90,0,0]) cylinder( h=30, r=0.5, $fn=50 ); 
+
+
+module extruder_cover()
+{
+    difference()
+    {
+    
+        union()
+        {
+            // base block
+            translate([-17,-36.5,-40.0]) cube([41.5,42.25,23.0]); 
+            translate([-37.75,-38.5,-40]) rotate([0,0,0]) cylinder( h=5, r=5.9, $fn=6 );
+            translate([-34,-41.5,-40]) rotate([0,0,20]) cube([30,8,4]); 
+            translate([16,-38.5,-40]) rotate([0,0,45]) cube([3,3,23]);  
+            
+            // fan nozzle mount
+            translate([11.5,-44,-40]) cube([7,9,7]);             
+            translate([15.5,-44,-40]) cube([5,9,23]);             
+            translate([-15,-44,-40]) cube([6.2,17,6]);             
+            translate([-11,-44,-40]) cube([28,20,1]);    
+       
+            // cable guide above fan
+            translate([23.5,-1.5,-40]) cube([8,7.25,23]);           
+        }
+
+        // side fan cut
+        translate([20.5,-37.5,-41]) cube([20,36,30]); 
+        
+        // cables hook
+        translate([34,-1.0,-41]) rotate([0,0,45]) cube([10,10,25]);   
+        difference()
+        {
+            translate([20.5,-2.5,-41]) cube([4,5,25]);  
+            translate([20.0,-0.5,-41]) rotate([0,0,60]) cube([5,5,25]);  
+        }
+        
+        // e3d nozzle cut
+        translate([0,-9,-17]) rotate([90,0,0]) cylinder( h=30, r=11.1, $fn=50 );      
+        translate([0,-9,-17]) rotate([90,0,0]) cylinder( h=26, r=11.5, $fn=50 );      
+        translate([0,-3.4,-17]) rotate([90,0,0]) cylinder( h=10, r=8.05, $fn=50 );        
+        translate([0,8,-17]) rotate([90,0,0]) cylinder( h=5.6, r=8.05, $fn=50 );        
+        translate([0,4,-17]) rotate([90,0,0]) cylinder( h=8, r=6.05, $fn=50 );        
+     
+        
+    // hotend cooling tube
+    // input 
+    translate([12,-21.5,-20]) rotate([0,90,0]) cylinder( h=10, r2=20.5, r1=12, $fn=80 ); 
+    translate([1,-20.5,-15.5]) rotate([0,99,0]) cylinder( h=25, r2=17.5, r1=12, $fn=80 ); 
+    translate([-10,-35,-28.3])  cube([30,26,32]); 
+    
+    // output
+    difference()
+    {
+        translate([-17.2,-35,-36]) rotate([0,-23,0]) cube([44,26,32]);        
+        translate([-18,-53.5,-40]) rotate([0,0,65]) cube([20,20,32]);        
+    }
+        
+    // fan screws
+    translate([7,-37.5,-36]) rotate([0,90,0]) cylinder( h=14, r=1.4, $fn=30 );     
+    translate([7,-5.5,-36]) rotate([0,90,0]) cylinder( h=14, r=1.4, $fn=30 );     
+    translate([19,-37.5,-36]) rotate([0,90,0]) cylinder( h=2, r1=1.4, r2=2, $fn=30 );
+    translate([19,-5.5,-36]) rotate([0,90,0]) cylinder( h=2, r1=1.4, r2=2, $fn=30 );     
+
+    // left hold together screw
+    translate([17,3,-44]) rotate([0,0,0]) cylinder( h=40, r=1.6, $fn=30 );     
+    translate([17,3,-41]) rotate([0,0,0]) cylinder( h=8, r=3.1, $fn=30 );  
+    translate([13.9,3.1,-41]) cube([6.2,10,9]);    
+            
+    // right hold together screw
+    translate([-11.5,-0.5,-43]) cylinder( h=60, r=1.7, $fn=30 ); 
+    translate([-11.5,-0.5,-41]) cylinder( h=5, r=3.1, $fn=30 ); 
+    
+    // upper cooling fan screw
+    translate([5.5,-0.5,-40]) cylinder( h=15, r=1.7, $fn=30 );
+    translate([5.5,-0.5,-42]) cylinder( h=3, r1=3, r2=1.7, $fn=30 );
+    
+    // nuts
+    translate([2.8,-4,-39]) cube([5.6,15,2.1]); 
+    translate([2.8,-2.2,-39]) cube([5.6,3.4,2.5]); 
+    translate([3.8,-2.2,-39]) cube([3.4,3.4,2.9]); 
+    translate([2.8,5.4,-38.4]) rotate([45,0,0]) cube([5.6,10,2]);  
+    
+    // lower cooling fan screw
+    translate([-37.75,-38.5,-42]) cylinder( h=20, r=1.7, $fn=30 );
+    translate([-37.75,-38.5,-39.4]) cylinder( h=4, r=3.2, $fn=6 );
+    translate([-37.75,-38.5,-37.5]) cylinder( h=3, r1=3.2, r2=4.0, $fn=6 );
+    
+    // nozzle screw
+    translate([14.5,-40.5,-42]) cylinder( h=10, r=1.4, $fn=30 );
+    translate([14.5,-40.5,-41]) cylinder( h=3, r1=2.1, r2=1.4, $fn=30 );
+    
+    // fan and motor cables
+    translate([21.5,-5.9,-41]) cube([3,5,25]);  
+    translate([20.5,-5.9,-41]) cube([4,5,25]);  
+    translate([13.2,-49.5,-33]) rotate([0,0,20]) cube([6,10,25]);  
+        
+    translate([18.5,-5.5,-22]) rotate([0,180,0]) m3head();
+    translate([47,-2,-19]) rotate([0,180,0]) m3head();
+        
+        
+    //version
+    translate([-3,-36,-38]) rotate([90,0,0]) linear_extrude(height = 0.6) 
+    { text("R1",font = "helvetica:style=Bold", size=4, center=true); }
+        
+    }
+}       
+
+extruder_cover();
+
diff --git a/Printed-Parts/scad/extruder-idler-plug.scad b/Printed-Parts/scad/extruder-idler-plug.scad
new file mode 100644
index 0000000..94e91a2
--- /dev/null
+++ b/Printed-Parts/scad/extruder-idler-plug.scad
@@ -0,0 +1,32 @@
+// PRUSA iteration4
+// Extruder idler plug
+// GNU GPL v3
+// Josef Průša <iam@josefprusa.cz> and contributors
+// http://www.reprap.org/wiki/Prusa_Mendel
+// http://prusamendel.org
+
+module plug()
+{
+    difference()
+        {
+            union()
+            {
+            // Base shape    
+            translate([-17,43,-18.5])  rotate([90,0,90]) cylinder( h=10, r=2.8, $fn=30 ); 
+            translate([-17,43,-21.3]) cube([10,4+3.5,5.6]);
+            translate([-17,43+3,-21.3]) cube([10.6,4.5,5.6]);
+            }
+        
+            // Motor screw slot
+            translate([-11.5,42.5,-32])  cylinder( h=30, r=1.5, $fn=30 ); 
+            translate([-11.5-1.5,42.5-5,-25])  cube([3,5,10]); 
+            
+            // Pretty corner
+            translate([-18,47,-32]) rotate([0,0,30]) cube([15,10,30]);
+        }
+}
+
+rotate([0,0,0])
+{ 
+    plug();
+}
\ No newline at end of file
diff --git a/Printed-Parts/scad/extruder-idler.scad b/Printed-Parts/scad/extruder-idler.scad
new file mode 100644
index 0000000..6fd5581
--- /dev/null
+++ b/Printed-Parts/scad/extruder-idler.scad
@@ -0,0 +1,89 @@
+// PRUSA iteration4
+// Extruder idler
+// GNU GPL v3
+// Josef Průša <iam@josefprusa.cz> and contributors
+// http://www.reprap.org/wiki/Prusa_Mendel
+// http://prusamendel.org
+ 
+
+module part()
+{
+ 
+    difference()
+    {
+        union()
+        {
+            // base shape
+            translate([-11.5,42.5,-31.5])  cylinder( h=25, r=5, $fn=30 ); 
+            translate([-17,12,-31.5]) cube([8,34,25.0]);   
+            
+            // pulley holders
+            translate([-4,27,-22.75])  cylinder( h=1, r1=4, r2=3, $fn=30 ); 
+            translate([-4,27,-27])  cylinder( h=4.25, r=4, $fn=30 ); 
+            translate([-14,22,-26.75]) cube([10.5,10,4]);   
+            translate([-16.5,22,-6.5]) cube([13,10,3]);   
+            translate([-4,27,-6.5])  cylinder( h=3, r=4, $fn=30 ); 
+            translate([-4,27,-7.25])  cylinder( h=0.75, r1=3, r2=4, $fn=30 ); 
+        }
+
+        // motor rim cut
+        translate([7,27,-32.75])  cylinder( h=6, r=18, $fn=30 ); 
+        
+        // axis
+        translate([-4,27,-32])  cylinder( h=40, r=1.5, $fn=30 ); 
+    
+        translate([-11.5,42.5,-32])  cylinder( h=30, r=1.7, $fn=30 ); 
+        translate([-18,44,-32]) rotate([0,0,30]) cube([15,10,30]);   
+        translate([-18,47,-32]) cube([15,10,30]);   
+        translate([-16,0.5,-32]) rotate([0,0,30]) cube([15,10,30]);   
+        translate([-18,3,-33]) cube([15,10,30]);   
+        
+        // idler nuts
+        translate([-15,15.6,-39.4]) cube([2.1,5.8,16]);   
+        translate([-15,15.6,-14.6]) cube([2.1,5.8,16]); 
+      
+        // idler screws
+        translate([-18,18.5,-26.5]) rotate([0,90,0]) cylinder( h=45, r=1.7, $fn=30 );  
+        translate([-18,18.5,-11.5]) rotate([0,90,0]) cylinder( h=45, r=1.7, $fn=30 );    
+        translate([-18,18.5,-26.5]) rotate([0,90,0]) cylinder( h=2.5, r1=3, r2=1.7, $fn=30 );  
+        translate([-18,18.5,-11.5]) rotate([0,90,0]) cylinder( h=2.5, r1=3, r2=1.7, $fn=30 );    
+
+        translate([-12,18.5,-26.5]) rotate([0,90,0]) cylinder( h=4, r1=1.7, r2=2.2, $fn=30 );  
+        translate([-12,18.5,-11.5]) rotate([0,90,0]) cylinder( h=4, r1=1.7, r2=2.2, $fn=30 );    
+
+        translate([-5.3,16.2,-33]) rotate([0,0,30]) cube([5,5,40]); 
+        translate([-7.8,33.5,-33]) rotate([0,0,-30]) cube([5,5,40]); 
+        
+        translate([-18,29,-17.6]) rotate([90,0,0]) rotate([0,90,0]) cylinder( h=10, r1=9, r2=6, $fn=6 );  
+        
+        // nice edges
+        translate([-26,10,-2]) rotate([0,45,0]) cube([10,40,10]); 
+        translate([-26,10,-35.5]) rotate([0,45,0]) cube([10,40,10]); 
+        translate([-10,2,-35]) cube([20,20,50]); 
+        
+        //selective infill
+        translate([-11,24,-5]) cube([5,6,0.2]); 
+        translate([-11,24,-26]) cube([5,6,0.2]); 
+        
+        // filament sensor cleaning window
+        translate([-20,43,-18.5])  rotate([90,0,90]) cylinder( h=15, r=3, $fn=30 ); 
+        translate([-20,43,-21.5]) cube([21,10,6]);
+    }
+    
+    difference()
+    {    
+        // side cut
+        translate([-17,22,-8]) cube([4,17,4.5]);   
+        translate([-9.5,33,-9]) rotate([0,0,45]) cube([10,10,6]);   
+        
+        // side cut edges
+        translate([-26,10,1]) rotate([0,45,0]) cube([10,40,10]); 
+        translate([-22.5,14,-10]) rotate([0,0,45]) cube([10,10,10]);     
+        translate([-22.5,33,-10]) rotate([0,0,45]) cube([10,10,10]);     
+    }
+    
+    translate([-11.5,28,-8]) rotate([0,0,45]) cube([3,6,4.5]);   
+    
+}
+
+rotate([0,90,0]) part();
\ No newline at end of file
diff --git a/Printed-Parts/scad/filament-sensor-cover.scad b/Printed-Parts/scad/filament-sensor-cover.scad
new file mode 100644
index 0000000..455195d
--- /dev/null
+++ b/Printed-Parts/scad/filament-sensor-cover.scad
@@ -0,0 +1,49 @@
+// PRUSA iteration4
+// Filament sensor cover
+// GNU GPL v3
+// Josef Průša <iam@josefprusa.cz> and contributors
+// http://www.reprap.org/wiki/Prusa_Mendel
+// http://prusamendel.org
+
+module part()
+{
+    difference()
+    {
+        union()
+            {   
+                // base shape
+                translate([-6,50,-30.5]) cube([24,3,36]);
+                translate([0,60,-17]) rotate([90,0,0]) cylinder(r=4.2,h = 10, $fn=30); 
+                translate([0,61.5,-17]) rotate([90,0,0]) cylinder(r1=3, r2=4.2, h=1.5, $fn=30); 
+            }
+            
+            // mounting screws
+            translate([12,60,-12]) rotate([90,0,0]) cylinder(r=1.6,h = 20, $fn=30); 
+            translate([-1,60,-24.5]) rotate([90,0,0]) cylinder(r=1.6,h = 20, $fn=30); 
+                
+            translate([12,54.5,-12]) rotate([90,0,0]) cylinder(r=3.1,h = 3, $fn=30); 
+            translate([-1,54.5,-24.5]) rotate([90,0,0]) cylinder(r=3.1,h = 3, $fn=30); 
+
+            // filament guide
+            translate([0,59.8,-17]) rotate([90,0,0]) cylinder(r=2.2,h = 9.8, $fn=30); 
+            translate([0,61,-17]) rotate([90,0,0]) cylinder(r=1,h = 20, $fn=30);     
+            translate([0,62.5,-17]) rotate([90,0,0]) cylinder(r2=1.2, r1=3,h = 3, $fn=30);     
+            translate([0,53.9,-17]) rotate([90,0,0]) cylinder(r1=2.2, r2=3,h = 4, $fn=30);     
+                
+                
+            // nice edges    
+            translate([19,50,-40]) rotate([0,0,45]) cube([10,10,50]);
+            translate([-9,49,-38]) rotate([0,0,45]) cube([6,5,50]);
+            translate([-8,56.5,-39]) rotate([45,0,0]) cube([50,10,10]);
+            translate([-8,56.5,-1]) rotate([45,0,0]) cube([50,10,10]);
+
+
+        translate([7,50.4,0]) rotate([90,180,0]) linear_extrude(height = 0.6) 
+        { text("R1",font = "helvetica:style=Bold", size=5, center=true); }
+    }
+}
+
+
+rotate([90,0,0]) part();
+
+
diff --git a/Printed-Parts/scad/heatbed-cable-cover.scad b/Printed-Parts/scad/heatbed-cable-cover.scad
new file mode 100644
index 0000000..2e1d6e2
--- /dev/null
+++ b/Printed-Parts/scad/heatbed-cable-cover.scad
@@ -0,0 +1,95 @@
+// PRUSA iteration4
+// Heatbed cable cover
+// GNU GPL v3
+// Josef Průša <iam@josefprusa.cz> and contributors
+// http://www.reprap.org/wiki/Prusa_Mendel
+// http://prusamendel.org
+
+
+module cover()
+{
+    translate([ -17.5, 0, 0 ]) cube([ 35, 21, 8 ]);  // cover
+    translate([ -7, 19, 0 ]) cube([ 3, 6.5, 3 ]);  // tube reinforcement
+    translate([ 4, 19, 0 ]) cube([ 3, 6.5, 3 ]);  // tube reinforcement
+    translate( [ 0 , 32 , 3 ] ) rotate( [90,0,0] ) cylinder( h = 12, r = 7, $fn=6);  // cable tube outer
+}
+
+module inside_cut()
+{
+    translate([ -15, -1, -1 ]) cube( [30,20,5] );     // inside cut
+    translate([ -14, 2, 4 ])  cube( [28,17,2.5 ] );     // inside cut
+    
+    translate( [ 0 , 32 , 2 ] ) rotate( [90,0,0] ) cylinder( h = 16, r = 4.5, $fn=30);  // cable tube inner
+    
+    translate([ -14, 10, -5 ])  cube( [28,25,5 ] );     // inside cut
+    translate([ -14, 10, 8 ])  cube( [28,25,3 ] );     // inside cut
+    
+    translate([ -2.5, -6, 1 ])  rotate([15,0,0]) cube( [5,10,3 ] );     // LED
+    
+    translate([ -22, -5, 7 ]) rotate([0,25,0])  cube( [5,40,6 ] );     // corners
+    translate([ 15, -5, 9 ]) rotate([0,60,0])  cube( [6,40,5 ] );     // corners
+    translate([ 20, -5, 7 ]) rotate([0,25,90])  cube( [5,40,5 ] );     // corners
+    
+    translate([ 15, -5, -1 ]) rotate([0,0,45])  cube( [5,5,5 ] );     // corners
+    translate([ -15, -5, -1 ]) rotate([0,0,45])  cube( [5,5,5 ] );     // corners
+    
+    
+    translate([ 8, 13, -10]) rotate([0,-45,45])  cube( [10,10,10 ] );     // corners
+    translate([ -8, 13, -10]) rotate([0,-45,-45])  cube( [10,10,10 ] );     // corners
+
+}
+
+module ziptie()
+{
+        difference()
+        {
+            translate( [ 0 , 29 , 3 ] ) rotate( [90,0,0] ) cylinder( h = 3.5, r = 10, $fn=30);  // cable tube outer
+            translate( [ 0 , 29 , 3 ] ) rotate( [90,0,0] ) cylinder( h = 3.5, r = 5.8, $fn=30);  // cable tube outer
+        }
+}
+
+module filament_holder()
+{
+        difference(){
+        translate([ -3.5,15, 2 ]) rotate([0,0,0])  cube( [7,7,6 ] );     // body ; 
+        translate( [ 0 , 24 , 4.5 ] ) rotate( [90,0,0] ) cylinder( h = 10, r = 1.4, $fn=12);  // filament
+        translate( [ 0 , 22.1 , 4.5 ] ) rotate( [90,0,0] ) cylinder( h = 1.5, r1 = 1.8, r2=1.4, $fn=12);  // filament
+
+        translate([ -6,15, 2 ]) rotate([0,45,0])  cube( [4,15,3 ] );     // corners ; previous ([ -5,15, 1 ]) cube( [3,15,3 ] )           
+        translate([ 1,15, 1 ]) rotate([0,45,0])  cube( [3,15,4 ] );     // corners ; previous  cube( [3,15,3 ] ) 
+        }
+}
+
+module m3_screw()
+{
+        
+    translate( [ 0 , 7.5 , 6 ] ) rotate( [0,0,90] ) cylinder( h = 2.5, r = 3.3, $fn=6);  // M3 HEAD
+    translate( [ 0 , 7.5 , 7.8] ) rotate( [0,0,90] ) cylinder( h = 0.8, r1 = 3.3, r2=5, $fn=6);  // M3 HEAD
+    translate( [ 0 , 7.5 , -10 ] ) rotate( [0,0,0] ) cylinder( h = 20, r = 1.5, $fn=30);  // M3 thread
+}
+    
+module nut_trap()
+{
+    translate( [ 0 , 7.5 , 4.5 ] ) rotate( [0,0,90] ) cylinder( h = 2.5, r = 4.6, $fn=6);  // M3 HEAD
+    translate( [ 0 , 7.5 , 4 ] ) rotate( [0,0,0] ) cylinder( h = 1, r = 3, $fn=30);    
+}
+    
+difference()
+{
+    union()
+    {
+        difference()
+        {
+            cover();
+            inside_cut();
+            ziptie();
+        }
+        nut_trap();
+    }   
+    m3_screw();
+    translate( [ 0 , 7.5 , 6.2 ] ) rotate( [0,0,0] ) cube( [5.7,3,1], center=true);   
+    translate( [ 0 , 7.5 , 5.7 ] ) rotate( [0,0,0] ) cube( [3,3,1], center=true); 
+}
+    
+filament_holder();
+    
\ No newline at end of file
diff --git a/Printed-Parts/scad/lcd-supports.scad b/Printed-Parts/scad/lcd-supports.scad
new file mode 100644
index 0000000..b9f21d4
--- /dev/null
+++ b/Printed-Parts/scad/lcd-supports.scad
@@ -0,0 +1,119 @@
+// PRUSA iteration4
+// lcd supports
+// GNU GPL v3
+// Josef Průša <iam@josefprusa.cz> and contributors
+// http://www.reprap.org/wiki/Prusa_Mendel
+// http://prusamendel.org
+
+
+
+
+module body()
+{
+
+    difference() 
+        {
+        // base block
+        translate([-55,-2,0]) cube([69,81,10]); 
+
+            union ()
+            {
+                // outer body shape
+                translate([-69.6,32,-1]) rotate([0,0,45]) cube([60,53,15]); 
+                translate([13.7,89.7,-1]) rotate([0,0,135]) cube([60,42,15]);
+                translate([-19,-9,-1]) cube([60,9,15] );   
+                translate([7,-3,-1]) cube([60,68,16]);  
+                translate([-16,60,-1]) cube([60,50,15] );
+                translate([-41, -45,-1]) rotate([0,0,45]) cube([60,80,13]);  
+                
+                // pcb cout out
+                translate([4,1.5,-1]) cube([1.8,56.5,17]); 
+                translate([0,7.5,-1]) cube([5.8,44.5,17]); 
+                translate([4.8,3.5,-1]) cube([5.8,52.5,17]);
+                translate([8,-5,-1] ) rotate([0,0,45]) cube([5,5,17]);
+                translate([8,58,-1]) rotate([0,0,45]) cube([5,5,17]);
+            }
+
+            // pcb inserts
+            translate([4,3,8]) rotate([45,0,0]) cube([1.8,5,5]); 
+            translate([4,56.5,8]) rotate([45,0,0]) cube([1.8,5,5]);     
+            translate([4,3,-5]) rotate([45,0,0]) cube([1.8,5,5]); 
+            translate([4,56.5,-5]) rotate([45,0,0]) cube([1.8,5,5]);     
+        }
+}
+
+
+
+module support()
+{
+    difference() 
+    {
+    
+        union()
+        {
+            rotate([0,0,45]) body();
+            // screw block
+            translate([-72,22,0])  cube([30,16,10]);    
+        }
+        
+        // lower angled part cut
+        translate([-75,-2,-1])  cube([20,14,15]);    
+        translate([-70,-2,-1]) cube([20,14,15]);    
+        translate([-50,-16.3,-1]) rotate([0,0,45]) cube([20,20,15]);    
+        
+        translate([-76.5,-2,-1]) cube([15,40,15]);    
+        
+        difference()
+        {
+            translate([-28,0,-1]) rotate([0,0,45]) cube([10,40,15]);    
+            translate([-38,-12,-1]) cube([20,20,15]);    
+            translate([-58,23.5,-1]) cube([25,25,15]);    
+        }
+        
+        // screw holes
+        translate([-71,18+4,5]) rotate([0,90,0]) cylinder(h=22, r=1.75, $fn=30);  
+        translate([-70,29+4,5]) rotate([0,90,0]) cylinder(h=22, r=1.75, $fn=30);  
+        
+        // nut traps
+        translate([-58,15.1+4,5-2.8]) cube([2.2,5.8,29.7]);    
+        translate([-58,26.1+4,5-2.8]) cube([2.2,5.8,29.7]); 
+     
+        // version
+        translate([-20,2,9.5]) rotate([0,0,0]) linear_extrude(height = 0.6) 
+        { text("R1",font = "helvetica:style=Bold", size=5, center=true); }   
+    }
+}
+
+
+module left_lcd_support()
+{
+    support();
+     
+    rotate([0,0,45]) difference()
+    {
+        // sd card shield
+        translate([-3,3,10])  cube([2,55,10]); 
+        translate([-4,3,20]) rotate([0,90,0]) cylinder( h=4, r=7, $fn=30); 
+        translate([-4,58,20]) rotate([0,90,0]) cylinder( h=4, r=7, $fn=30); 
+    }
+}
+
+translate([-60,-2,0]) rotate([0,0,180]) support();
+left_lcd_support();
+
+ 
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/Printed-Parts/scad/nozzle-fan.scad b/Printed-Parts/scad/nozzle-fan.scad
new file mode 100644
index 0000000..3e0afd0
--- /dev/null
+++ b/Printed-Parts/scad/nozzle-fan.scad
@@ -0,0 +1,180 @@
+// PRUSA iteration4
+// Nozzle fan
+// GNU GPL v3
+// Josef Průša <iam@josefprusa.cz> and contributors
+// http://www.reprap.org/wiki/Prusa_Mendel
+// http://prusamendel.org
+
+module outer_shape()
+{
+    difference()
+    {    
+        union()
+        {
+            // fan entry block
+            translate([-18,-53,-52]) cube([36,9,22]);    
+            difference()
+            {
+                // nozzle base shape
+                translate([0,-44,-15]) rotate([90,0,0]) cylinder( h=9, r=24, $fn=30 );
+                translate([0,-43,-15]) rotate([90,0,0]) cylinder( h=11, r=14, $fn=30 );
+                translate([-25,-54,-17]) cube([50,11,30]);    
+            }
+
+            // tips
+            translate([-23.8,-53,-17]) cube([10,9,6]);  
+            translate([13.8,-53,-17]) cube([10,9,6]);  
+        }
+
+        // upper angle cut
+        translate([-25,-44,-30]) rotate([10,0,0]) cube([50,10,20]);  
+        
+        // angled front sides
+        translate([-19.8,-54,-57]) rotate([0,-30,0]) cube([10,11,20]);    
+        translate([11.2,-54,-52]) rotate([0,30,0]) cube([10,11,20]);    
+
+        // right round edge
+        translate([10.2,0,3]) difference()
+        {
+            translate([-28,-44,-20]) rotate([90,0,0]) cylinder( h=10, r=12, $fn=30 );    
+            translate([-28,-43,-20]) rotate([90,0,0]) cylinder( h=12, r=6, $fn=30 );    
+            translate([-50,-43,-60]) rotate([90,0,0]) cube([40,40,40]);    
+            translate([-28,-43,-40]) rotate([90,0,0]) cube([40,40,40]);    
+        }
+
+        // left round edge
+        translate([45.8,0,3]) difference()
+        {
+            translate([-28,-44,-20]) rotate([90,0,0]) cylinder( h=10, r=12, $fn=30 );    
+            translate([-28,-43,-20]) rotate([90,0,0]) cylinder( h=12, r=6, $fn=30 );    
+            translate([-50,-43,-60]) rotate([90,0,0]) cube([40,40,40]);    
+            translate([-68,-43,-40]) rotate([90,0,0]) cube([40,40,40]);    
+        }
+
+
+        
+    }
+
+    // mounting block
+    difference()
+    {
+        translate([10.5,-53,-40.5]) cube([8,17,5]);   
+        translate([14.5,-40.5,-41]) rotate([0,0,0]) cylinder( h=15, r=1.65, $fn=30 );    
+        translate([14.5,-40.5,-42]) rotate([0,0,0]) cylinder( h=4, r=3.1, $fn=30 );    
+    }
+}
+
+
+
+module inner_shape()
+{
+    difference()
+    {    
+        union()
+        {
+            // base block
+            translate([-17,-52,-51]) cube([34,7,21]);    
+            
+            // nozzle inner shape
+            difference()
+            {
+                translate([0,-45,-15]) rotate([90,0,0]) cylinder( h=7, r=23, $fn=30 );
+                translate([0,-43,-15]) rotate([90,0,0]) cylinder( h=11, r=16, $fn=30 );
+                translate([-25,-54,-17]) cube([50,11,30]);    
+            }
+
+            translate([-22.8,-52,-17]) cube([7,7,5]);  
+            translate([15.8,-52,-17]) cube([7,7,5]);  
+        }
+        
+        // upper angled cut
+        translate([-25,-44,-35]) rotate([10,0,0]) cube([50,10,30]);  
+        
+        // angled front sides
+        translate([-19.2,-54,-56]) rotate([0,-24,0]) cube([10,11,20]);    
+        translate([10.5,-54,-51]) rotate([0,24,0]) cube([10,11,20]);    
+        
+        // smooth entry
+        difference()
+        {
+            translate([-30,-46,-45]) rotate([0,90,0]) cylinder( h=60, r=9, $fn=30 );
+            translate([-30,-46,-45]) rotate([0,90,0]) cylinder( h=60, r=6, $fn=30 );
+            translate([-30,-46,-52]) cube([60,11,20]);    
+            translate([-30,-53,-45]) cube([60,11,20]);    
+        }
+     
+        // left round edge
+        translate([10.2,0,3]) difference()
+        {
+            translate([-28,-44,-20]) rotate([90,0,0]) cylinder( h=10, r=12, $fn=30 );    
+            translate([-28,-43,-20]) rotate([90,0,0]) cylinder( h=12, r=5, $fn=30 );    
+            translate([-50,-43,-60]) rotate([90,0,0]) cube([40,40,40]);    
+            translate([-28,-43,-40]) rotate([90,0,0]) cube([40,40,40]);    
+        }
+
+        // right round edge
+        translate([45.8,0,3]) difference()
+        {
+            translate([-28,-44,-20]) rotate([90,0,0]) cylinder( h=10, r=12, $fn=30 );    
+            translate([-28,-43,-20]) rotate([90,0,0]) cylinder( h=12, r=5, $fn=30 );    
+            translate([-50,-43,-60]) rotate([90,0,0]) cube([40,40,40]);    
+            translate([-68,-43,-40]) rotate([90,0,0]) cube([40,40,40]);    
+        }
+     
+     
+        
+    }
+
+    // fan cut
+    translate([-10.25,-46,-51]) cube([20.5,10,15.5]);    
+    translate([10.25,-52,-44]) cube([2,15,3]);    
+
+}
+
+ 
+module base_shape()
+{
+    difference()
+    {
+        outer_shape();
+        inner_shape();
+        // air slot
+        translate([0,-49,-15]) rotate([90,0,0]) cylinder( h=7, r=17, $fn=30 );    
+    }
+}
+
+
+module fan_nozzle()
+{
+    difference()
+    {
+        base_shape();
+        
+        // nozzle tips cut
+        translate([8.7,-53,-15]) rotate([0,20,0]) cube([5,15,15]);    
+        translate([-13.6,-53,-16]) rotate([0,-20,0]) cube([5,15,15]);    
+    }
+
+    // fins
+    translate([8.1,0,-11]) rotate([0,80,0]) translate([0,-53,-25.5]) cube([1,5,3]);    
+    translate([-8.1,0,-11.2]) rotate([0,-80,0]) translate([-1,-53,-25.5]) cube([1,5,3]);    
+    translate([4.8,0,-11.5]) rotate([0,55,0]) translate([0,-53,-24]) cube([1,5,4]);    
+    translate([-4.8,0,-11.5]) rotate([0,-55,0]) translate([-1,-53,-24]) cube([1,5,4]);    
+    translate([-0.5,0,-8.6]) rotate([0,15,0]) translate([0,-53,-24]) cube([1,5,4]);    
+    translate([0.5,0,-8.6]) rotate([0,-15,0]) translate([-1,-53,-24]) cube([1,5,4]);    
+
+
+    translate([-0.4,-53,-35.4]) rotate([0,0,0]) cube([0.8,8.8,6.4]); 
+    translate([5.4,-53,-34.8]) rotate([0,50,0]) cube([0.8,9,8.5]); 
+    translate([-6.2,-53,-35.4]) rotate([0,-50,0]) cube([0.8,9,8.5]); 
+
+    translate([10.4,-53,-40.4]) rotate([0,30,0]) cube([0.8,9,4.5]); 
+    translate([-11.2,-53,-41.0]) rotate([0,-30,0]) cube([0.8,9,4.5]); 
+
+
+    translate([10,-51,-50.8]) rotate([0,180,0]) linear_extrude(height = 2) 
+    { text("HOT!2",font = "helvetica:style=Bold", size=5, center=true); }
+}
+
+rotate([90,0,0]) fan_nozzle();
+
diff --git a/Printed-Parts/scad/polyholes.scad b/Printed-Parts/scad/polyholes.scad
new file mode 100644
index 0000000..c58aedb
--- /dev/null
+++ b/Printed-Parts/scad/polyholes.scad
@@ -0,0 +1,42 @@
+//
+// Mendel90
+//
+// GNU GPL v2
+// nop.head@gmail.com
+// hydraraptor.blogspot.com
+//
+// See http://hydraraptor.blogspot.com/2011/02/polyholes.html
+//
+function sides(r) = max(round(4 *r),3);
+function correctedRadius(r,n) = 0.1 + r / cos(180 / n);
+function correctedDiameter(d) = 0.2 + d / cos(180 / sides(d / 2));
+
+module polyCircle(r, center = false) {
+    n = sides(r);
+    circle(r = correctedRadius(r,n), $fn = n, center = center);
+}
+
+module poly_circle(r, center = false) {
+	polyCircle(r, center);
+}
+
+module polyCylinder(r, h, center = false) {
+    n = sides(r);
+    cylinder(h = h, r = correctedRadius(r,n), $fn = n, center = center);
+}
+
+module poly_cylinder(r, h, center = false) {
+	polyCylinder(r,h,center);
+}
+
+module polydCylinder(r, center = false) {
+    n = sides(r);
+    r = correctedRadius(r,n);
+    cylinder(h = h, r = r, $fn = n, center = center);
+    translate([0, -r, 0])
+        cube([r, 2 * r, h]);
+}
+
+module poly_d_cylinder(r, center = false) {
+	polydCylinder(r,center);
+}
diff --git a/Printed-Parts/scad/x-carriage-back.scad b/Printed-Parts/scad/x-carriage-back.scad
new file mode 100644
index 0000000..afccaf5
--- /dev/null
+++ b/Printed-Parts/scad/x-carriage-back.scad
@@ -0,0 +1,146 @@
+// PRUSA iteration4
+// X carriage back
+// GNU GPL v3
+// Josef Průša <iam@josefprusa.cz> and contributors
+// http://www.reprap.org/wiki/Prusa_Mendel
+// http://prusamendel.org
+
+module m3head()
+{
+    intersection()
+    {
+        translate([30,5,9])cylinder(r=3.1,h = 25, $fn=30); // head cut
+        translate([30,5,17-3.5]) cube([6.2,3.4,1], center=true);
+    }
+    translate([30,5,17-4]) cube([3.4,3.4,1], center=true);
+    translate([30,5,17-3.5])cylinder(r=3.1,h = 20, $fn=30); // head cut
+}
+    
+    
+module x_carriage_back()
+{
+    difference()
+    {
+        union()
+        {
+            // base block
+            translate([-16,-39.0,15.1]) cube([33,72,8]);
+            translate([-25.5,-5,15.1]) cube([52,39.5,8]);
+        }
+        
+        // lower bearing cut
+        translate([-17,-22,7.5]) cube([35,4,10]);
+        
+        // cables opening
+        translate([-4.5,-18,15]) cube([10,4,10]);
+        translate([0.5,-18,10]) rotate([0,0,90]) cylinder( h=32, r=5, $fn=30 );
+        translate([0.5,-14,10]) rotate([0,0,90]) cylinder( h=32, r=5, $fn=30 );
+        translate([-20,-19.5,9]) cube([50,7.5,10]);
+        
+        // bearings
+        translate([-15,-25,11.75]) rotate([0,90,0]) cylinder( h=31, r=7.6, $fn=30 );
+        translate([-30,20,11.75]) rotate([0,90,0]) cylinder( h=60, r=7.6, $fn=30 );
+        translate([-17,-25,11.75]) rotate([0,90,0]) cylinder( h=60, r=7, $fn=30 );
+        translate([-32,20,11.75]) rotate([0,90,0]) cylinder( h=80, r=7, $fn=30 );
+      
+        // hold together screws
+        translate([-9.5,-36,10]) rotate([0,0,0]) cylinder( h=50, r=1.6, $fn=30 );
+        translate([10.5,-36,10]) rotate([0,0,0]) cylinder( h=50, r=1.6, $fn=30 );
+        translate([1,4,10]) rotate([0,0,0]) cylinder( h=50, r=1.6, $fn=30 );
+        translate([13,31,10]) rotate([0,0,0]) cylinder( h=50, r=1.6, $fn=30 );
+        translate([-10.5,31,10]) rotate([0,0,0]) cylinder( h=50, r=1.6, $fn=30 ); 
+        translate([13,31,19]) cylinder( h=50, r=3.1, $fn=30 );
+        translate([-10.5,31,19]) cylinder( h=50, r=3.1, $fn=30 ); 
+        
+        // lower screw heads
+        translate([-9.5,-36,19]) cylinder( h=6, r=3.1, $fn=30 );
+        translate([10.5,-36,19]) cylinder( h=50, r=3.1, $fn=30 );
+        translate([-12.6,-46,18]) cube([6.2,10,10]);
+        translate([7.4,-46,18]) cube([6.2,10,10]);
+        
+        // center screw head
+        translate([1,4,18]) cylinder( h=7, r=3.1, $fn=30 );
+        
+        // heat cables cut
+        translate([0.5,-42.5,0]) rotate([-5,0,0]) cylinder( h=50, r=6, $fn=30 );
+        
+        // cable holder screw
+        translate([0.5,-27,11]) rotate([0,0,90]) cylinder( h=40, r=1.6, $fn=30 );
+        translate([0.5,-27,16.5]) rotate([0,0,0]) cylinder( h=5, r=3.1, $fn=6 );
+        
+        // x-carriage screws in belt holders
+        translate([11.5,-0.5,10]) rotate([0,0,90]) cylinder( h=40, r=3, $fn=30 );
+        translate([-11.5,-0.5,10]) rotate([0,0,90]) cylinder( h=40, r=3, $fn=30 );
+
+        // nice edges
+        translate([-20.8,-46.1,10]) rotate([0,0,45]) cube([10,10,15]);
+        translate([21.8,-46.1,10]) rotate([0,0,45]) cube([10,10,15]);
+        translate([-24.4,15.2,10]) rotate([0,0,45]) cube([14,10,15]);
+        translate([26.9,15.2,10]) rotate([0,0,45]) cube([10,14,15]);
+        translate([-19.55,28,10]) rotate([0,0,45]) cube([10,10,15]);
+        translate([22.05,28,10]) rotate([0,0,45]) cube([10,10,15]);
+        translate([-22,35,21]) rotate([30,0,0]) cube([44,10,10]);
+        translate([-22,35,17]) rotate([30,0,0]) cube([14.5,10,10]);
+        translate([10,35,17]) rotate([30,0,0]) cube([14.5,10,10]);
+        
+        // upper side cuts
+        translate([17,25,10]) rotate([0,0,0]) cube([10,10,15]);
+        translate([-29.5,25,10]) rotate([0,0,0]) cube([15,15,15]);
+        translate([17,22,13]) rotate([0,0,0]) cube([10,10,5]);
+        translate([-24.5,22,13]) rotate([0,0,0]) cube([10,10,5]);
+
+        // side edges
+        translate([27,-20,16]) rotate([0,-30,0]) cube([10,50,10]);
+        translate([-34.2,-20,21]) rotate([0,30,0]) cube([10,50,10]);
+        translate([19.5,-55,16]) rotate([0,-30,0]) cube([10,50,10]);
+        translate([-27.1,-55,21]) rotate([0,30,0]) cube([10,50,10]);
+        
+        // inner cable cleanup
+        translate([-1,-19.5,14]) rotate([0,30,0]) cube([10,7.5,10]);
+        translate([-5,-19.5,10]) rotate([0,-30,0]) cube([10,7.5,10]);
+        
+        
+        // filament sensor cable
+        translate([4.5,28.5,12]) rotate([0,0,0]) cube([3.5,4,20]);
+        translate([0.5,28.5,12]) rotate([0,0,0]) cube([4.5,7,20]);
+        translate([4.5,-5,19.5]) rotate([0,0,0]) cube([3.5,35,4.3]);
+        translate([-1.55,-9.60,19.5]) rotate([0,0,-45]) cube([3.5,10,4]);
+        translate([-1.9,-9.95,15]) rotate([45,0,-45]) cube([3.5,10,4]);
+        translate([4.5,29,16]) rotate([45,0,0]) cube([3.5,5,5]);
+        translate([3.5,-4.60,19.5]) rotate([0,0,-15]) cube([3,4,4]);
+        
+        // version
+        translate([-14.5,13,22.8]) rotate([0,0,0]) linear_extrude(height = 0.4) 
+        { text("MK3",font = "helvetica:style=Bold", size=6, center=true); }
+        translate([-15,3,15.5]) rotate([0,180,0]) linear_extrude(height = 0.8) 
+        { text("R1",font = "helvetica:style=Bold", size=4, center=true); }
+        translate([-23,2.3,14.3]) cube([9,5.0,1]);
+
+        // upper ziptie left
+        translate([-21.5,-25,0])difference()
+        {
+            translate([1,45,12]) rotate([0,90,0]) cylinder(r=8.5, h=4, $fn=25);   
+            translate([0,45,12]) rotate([0,90,0]) cylinder(r=7, h=6, $fn=25);
+        }
+        translate([19.5,8,14.5]) rotate([-60,0,0]) cube([4,3,10]);
+        translate([-20.5,8,14.5]) rotate([-60,0,0]) cube([4,3,10]);
+        
+        // upper ziptie right
+        translate([19,-25,0])difference()
+        {
+        translate([0.5,45,12]) rotate([0,90,0]) cylinder(r=8.5, h=4, $fn=25);   
+        translate([0,45,12]) rotate([0,90,0]) cylinder(r=7, h=6, $fn=25);
+        }
+        
+        // supports
+        translate([-17,26,5]) m3head();
+        translate([-40.5,26,5]) m3head();
+        translate([-29,-1,4]) m3head();
+        translate([-19.5,-41,5]) m3head();
+        translate([-39.5,-41,5]) m3head();
+    
+    }
+}
+
+rotate([0,180,0]) x_carriage_back();
+
diff --git a/Printed-Parts/scad/x-carriage.scad b/Printed-Parts/scad/x-carriage.scad
new file mode 100644
index 0000000..2e1c03a
--- /dev/null
+++ b/Printed-Parts/scad/x-carriage.scad
@@ -0,0 +1,308 @@
+// PRUSA iteration4
+// X carriage
+// GNU GPL v3
+// Josef Průša <iam@josefprusa.cz> and contributors
+// http://www.reprap.org/wiki/Prusa_Mendel
+// http://prusamendel.org
+
+use <bearing.scad>
+
+module x_carriage_base()
+{
+    
+    // Small bearing holder
+    translate([-33/2,0,0]) rotate([0,0,90]) horizontal_bearing_base(1);
+ 
+    // Long bearing holder
+    translate([-33/2,45,0]) rotate([0,0,90]) horizontal_bearing_base(2);
+ 
+    // Base plate
+    translate([-34,-14,0]) cube([34.5,70.5,7]);
+    translate([-33,-15,0]) cube([33,7,15]);
+    translate([-42.5,53.0,0]) cube([52,6.5,15]);
+ 
+    difference()
+    {
+        union()
+        {
+        translate([-12,30,1]) rotate([0,0,45]) cube([6,6,14]);
+        translate([-20,30,1]) rotate([0,0,45]) cube([6,6,14]);
+        }
+        translate([-25,38,11]) rotate([43,0,0]) cube([20,8,8]);
+    }
+ 
+    // upper motor screw block
+    translate([-23,56.8,0]) rotate([0,0,0]) cube([32.5,18.2,8]); 
+     
+    // Belt holder base
+    translate([-42.5,20,0]) cube([52,16,7]);
+    translate([-16.5-12,24.5,0])cylinder(r=4.5, h=14, $fn=25);
+    translate([-17.5+12,24.5,0])cylinder(r=4.5, h=14, $fn=25); 
+    translate([-16.5-12,24.5,14])cylinder(r1=4.5, r2=3.8, h=1, $fn=25);
+    translate([-17.5+12,24.5,14])cylinder(r1=4.5, r2=3.8, h=1, $fn=25);
+     
+     
+    // Belt Insert R
+    difference()
+    {
+        union()
+        {
+            translate([2,26.9,0]) cube([10,6.2,15]);
+            translate([2,24-2.3-4.5,0]) cube([7.5,7.5,15]);
+            translate([-0.5,27,0]) cube([8,7,2]);
+        }
+        translate([-3,25,5.5]) rotate([0,0,-40]) cube([5,5.5,10]);
+        translate([8,17,5.5]) rotate([0,0,-60]) cube([2,5,10]);
+    }
+        
+    // Belt Insert L
+    difference()
+    {
+        union()
+        {
+            translate([-33,3,00])
+            {
+                scale([-1,1,1])
+                {
+                    translate([0,26.8,0]) cube([12.5,4.5,15]);
+                    translate([2,27-7.5-2.3,0]) cube([12.5,7.5,15]);
+                    translate([-0.5,27,0]) cube([8,7,2]);
+                }
+            }
+         }
+         translate([-36.5,27.7,5.5]) rotate([0,0,-55]) cube([5,5.5,10]);
+    }
+}
+
+
+
+module x_carriage_holes()
+{
+    // Small bearing holder holes cutter
+    translate([-33/2,0,0]) rotate([0,0,90]) horizontal_bearing_holes_nozip(1);
+    
+    // Long bearing holder holes cutter
+    translate([-33/2,45,0]) rotate([0,0,90]) horizontal_bearing_holes_nozip(2);
+  
+    // upper ziptie right
+    translate([2,0,0])
+    difference()
+        {
+            translate([0.75,45,12]) rotate([0,90,0]) cylinder(r=10.8, h=3.5, $fn=25);   
+            translate([0,45,12]) rotate([0,90,0]) cylinder(r=9, h=6, $fn=25);
+        }
+        
+    // upper ziptie left
+    translate([-38,0,0])
+    difference()
+        {
+            translate([0.75,45,12]) rotate([0,90,0]) cylinder(r=10.8,h=3.5,$fn=25);   
+            translate([0,45,12]) rotate([0,90,0]) cylinder(r=9, h=6, $fn=25);
+        }
+    
+    // upper ziptie head
+    translate([0,52.5,12]) cube([10,10,5]); 
+    translate([-45,52.5,12]) cube([13.5,10,5]); 
+    
+    // Extruder mounting holes
+    translate([-17.5+12,24.5,-1])cylinder(r=1.8, h=20, $fn=25);
+    translate([-17.5+12,24.5,-0.1])cylinder(r1=2.1,r2=1.8, h=0.5, $fn=25);
+    translate([-17.5+12,24.5,12])cylinder(r=5.8/2, h=20, $fn=25); 
+    translate([-16.5-12,24.5,-1])cylinder(r=1.8, h=20, $fn=25);
+    translate([-16.5-12,24.5,-0.1])cylinder(r1=2.1,r2=1.8, h=0.5, $fn=25);
+    translate([-16.5-12,24.5,12])cylinder(r=5.8/2, h=20, $fn=25); 
+    
+    // Carriage slimer
+    translate([-55.5+3,19,-1])cube([10,40,30]);
+    translate([+12.5-3,19,-1])cube([10,40,30]);
+    translate([+12.5-3.5-2,30.8,-1])rotate([0,90-65,0])cube([10,55,30]);
+    translate([-55.5+6.7+2,19,-10])rotate([0,-90+65,0])cube([10,40,30]);
+   
+}
+
+module x_carriage_fancy()
+{
+    // Top right corner
+    translate([11.5,8,0]) translate([0,45+11.5,-1]) rotate([0,0,45]) translate([0,-15,0]) cube([30,30,20]);
+    
+    // Belt Smooth insert
+    translate([0,36.5,23.5]) rotate([45,0,0]) translate([0,-15,0]) cube([20,10,10]);
+    translate([-52.9,36.5+3,23.5]) rotate([45,0,0]) translate([0,-15,0]) cube([20,10,10]);   
+    
+    // Top left corner
+    translate([-33-13.5,-5,0]) translate([0,45+11.5,-1]) rotate([0,0,135]) translate([0,-15,0]) cube([30,30,20]);	
+ 
+    translate([-27,74.5,9]) rotate([0,45,0]) translate([0,-15,0]) cube([5,25,5]);	   
+    translate([-23,86,16]) rotate([45,0,0]) translate([0,-15,0]) cube([45,5,5]);	   
+    
+    // bottom side edges
+    translate([-40,-15,-5]) rotate([30,0,0]) cube([45,6,15]);
+    translate([-35,-19.2,0]) rotate([0,0,45]) cube([6,6,16]);
+    translate([2,-19.2,0]) rotate([0,0,45]) cube([6,6,16]);
+    translate([2,55.9,12]) rotate([0,0,45]) cube([6,6,16]);
+    translate([-33.5,55.9,12]) rotate([0,0,45]) cube([6,6,16]);
+    
+}
+
+module cable_tray()
+{
+    
+    // center screw block
+    translate([-21,23,0]) cube([9,12,15]); 
+    
+    difference()
+    {    
+        union()
+        {
+            translate([-20.8,24.8,0]) rotate([0,0,20]) cube([3,10,15]); 
+            translate([-15.5,25.8,0]) rotate([0,0,-20]) cube([3,10,15]); 
+        }
+        translate([-25,34.2,0]) cube([20,10,15]); 
+    }
+    
+    translate([6.5,32,10]) cube([3,5,5]); 
+    translate([-42.5,32,10]) cube([4,5,5]); 
+    
+    //Left cable tray
+    translate([-39.9,11,0]) cube([9,2,15]); 
+    translate([-39.9,5.5,0]) cube([9,2,15]); 
+    
+    //Right cable tray
+    translate([-2,5.5,0]) cube([11.45,2,15]);
+    translate([-2,11,7]) cube([11.45,2,8]);
+    
+    translate([-31,11.5,7]) cube([30,1.5,8]);
+        
+    difference(){ 
+    translate([0,11,0]) cube([9.50,12,7]);
+    translate([0,6,1])rotate([-30,0,0]) cube([7.5,12,7]);
+    translate([0,3.5,6])rotate([-60,0,0]) cube([7.5,12,7]);
+    translate([0,10+3,-1])cube([7.5,11,6]);    
+    }
+    
+    
+}
+
+
+module final_cutout()
+{
+    // cable guide edges
+    translate([-44,0,16]) rotate([0,45,0]) cube([5,15,5]);
+    translate([6,0,16]) rotate([0,45,0]) cube([5,15,5]);
+    
+    // motor cable opening
+    translate([0.5,10+3,-1])cube([7,9.2,6]);    
+    
+    // filament hole
+    translate([-14.5,8.8,0]) rotate([-5,0,0]) cylinder(r=1.52, h=40, $fn=10);  
+    translate([-14.5,9.7,10]) rotate([-5,0,0]) cylinder(r=1.52,r2=2, h=6, $fn=10);  
+    
+    // bottom back mounting screws
+    translate([-6.5,-11,4]) rotate([0,0,0]) cylinder(r=1.65, h=20, $fn=30);  
+    translate([-26.5,-11,4]) rotate([0,0,0]) cylinder(r=1.65, h=20, $fn=30);  
+    translate([-29.5,-14,10]) cube([6,7,2.2]);
+    translate([-09.5,-14,10]) cube([6,7,2.2]);
+    translate([-28.2,-14,10.3]) cube([3.4,7,2.2]);
+    translate([-08.2,-14,10.3]) cube([3.4,7,2.2]);
+    
+    // x-carriage-back mounting screws
+    translate([-4,56,0]) rotate([0,0,0]) cylinder(r=1.65, h=40, $fn=30);  
+    translate([-27.5,56,0]) rotate([0,0,0]) cylinder(r=1.65, h=40, $fn=30);  
+    translate([-30.5,53,8]) cube([6,8,2]);
+    translate([-7,53,8]) cube([6,8,2]);
+    
+    translate([-16,29,0]) rotate([0,0,0]) cylinder(r=1.65, h=40, $fn=30);
+    translate([-19,26,11]) cube([6,8,2]);
+    translate([-21,33,11]) cube([10,8,6]);
+    
+    // opening for power cables to hotend & termistor cable
+    translate([-16.5,-18,-5]) rotate([-5,0,0]) cylinder(r=6, h=40, $fn=30);  
+    
+}
+
+ 
+module x_carriage_block()
+{
+    difference()
+        {
+            union()
+            {
+                difference()
+                {
+                    x_carriage_base();
+                    x_carriage_holes();
+                    x_carriage_fancy();
+                }
+                cable_tray();
+            }
+            final_cutout();
+        }
+}
+
+module x_carriage()
+{
+    difference()
+    {
+            x_carriage_block();
+            
+            // upper motor screw
+            translate([2.5,67.5,-50]) rotate([0,0,0]) cylinder(r=1.8, h=100, $fn=30);
+            translate([2.5,67.5,-0.1]) cylinder(r1=2.1,r2=1.8, h=0.5, $fn=25);
+            translate([2.5,67.5,5]) rotate([0,0,0]) cylinder(r=3.2, h=8, $fn=30);
+            translate([0.5,22.5,0]) rotate([0,90,0]) cylinder(r=5.2, h=7.0, $fn=25);
+
+            // cable management cleanup
+            difference()
+            {
+                translate([2.5,21.5,0]) rotate([0,90,0]) cylinder(r=5.2, h=5.0, $fn=25);
+                translate([2,16,-10]) cube([10,6,20]);
+            }
+
+            // selective infill
+            translate([-36.5,21.25,1.5]) cube([0.1,4.5,13.3]);      
+            translate([-38.6,21,1.5]) cube([0.1,6,13.3]);      
+            translate([-41,21,1.5]) cube([0.1,6,13.3]);      
+
+            translate([3.5,21,6]) cube([0.1,2,8.8]);      
+            translate([5,21,6]) cube([0.1,3,8.8]);      
+            translate([6.8,21,5.5]) cube([0.1,3,9]);      
+            translate([8.5,21,5]) cube([0.1,3,9.8]);      
+
+            translate([5,-15.4,-1]) rotate([0,45,0]) cube([0.3,4.6,8]);        
+            translate([8.45,11.5,1]) cube([0.5,1.8,4]);        
+            
+            translate([5,-16.4,-1]) rotate([0,45,0]) cube([0.3,0.5,8]);        
+            translate([5,-10.3,-1]) rotate([0,45,0]) cube([0.3,0.5,8]);    
+            translate([6,-16.5,-1]) cube([1,0.5,5]);        
+            translate([3,-16.5,-1]) cube([2,0.5,5]);  
+            translate([6,-10.2,-1]) cube([1,0.5,5]);        
+            translate([3,-10.2,-1]) cube([2,0.5,5]);  
+            translate([6,7.5,-1]) cube([1,0.5,5]);  
+            translate([6,10.5,-1]) cube([1,0.5,5]);  
+            
+            translate([-19,24,1.5]) cube([5,0.4,13.0]);      
+            translate([-20.5,27,1.5]) rotate([0,0,20])  cube([0.4,5,13.0]);      
+            
+            //cable openings in guides
+            translate([-40.8,7.5,0]) rotate([0,20,0]) cube([5,3.5,20]);
+            translate([-2.9,7.5,18]) rotate([0,80,0]) cube([20,3.55,5]);
+            
+            // filament sensor connector
+            translate([-12.5,64,-3]) cube([4,11.2,14]);
+            translate([-12.5,65.75,-3]) cube([5,2.5,14]);
+            translate([-12.5,71.75,-3]) cube([5,2.5,14]);
+            translate([-14.5,67,-3]) cube([4,6,14]);
+            translate([-14.5,65,4.7]) cube([4,10.2,5]);
+            translate([-12.5,54.5,8]) cube([3.5,10.2,14]);
+            translate([-12.5,57.5,9.5]) rotate([35,0,0]) cube([3.5,10.2,14]);
+            translate([-12.5,58,8]) rotate([0,0,45]) cube([3,3,14]);
+            translate([-10,58,8]) rotate([0,0,45]) cube([3,3,14]);
+            
+            //version
+            translate([-2,-8,0.5]) rotate([0,180,0]) linear_extrude(height = 0.6) 
+            { text("R1",font = "helvetica:style=Bold", size=4, center=true); }
+    }
+}
+
+
+x_carriage();
diff --git a/Printed-Parts/scad/x-end-idler.scad b/Printed-Parts/scad/x-end-idler.scad
new file mode 100644
index 0000000..3711ad2
--- /dev/null
+++ b/Printed-Parts/scad/x-end-idler.scad
@@ -0,0 +1,137 @@
+// PRUSA iteration4
+// X end idler
+// GNU GPL v3
+// Josef Průša <iam@josefprusa.cz> and contributors
+// http://www.reprap.org/wiki/Prusa_Mendel
+// http://prusamendel.org
+
+use <x-end.scad>
+
+module x_end_idler_holes()
+{
+    x_end_holes();
+    translate([0,3.5,0])
+    {
+        // pulley screw
+        translate(v=[0,-19,30.25]) rotate(a=[0,-90,0]) cylinder(h = 80, r=1.8, $fn=30);
+        translate(v=[-4,-19,30.25]) rotate(a=[0,-90,0]) cylinder(h = 4, r=3.1, $fn=30);
+        translate(v=[-21.5,-19,30.25]) rotate(a=[0,-90,0]) rotate(a=[0,0,30]) cylinder(h = 10, r=3.2, $fn=6);
+            
+        // pulley side cut
+        translate(v=[-9,-19,30.25]) rotate(a=[0,-90,0]) cylinder(h = 9, r=9.5, $fn=30);        
+        translate([-19,-35,21.25]) cube([10,20,18]);    
+        translate([-16.1,-35,21.3]) rotate([0,45,0]) cube([5,20,5]);    
+        translate([-16.1,-35,39.25]) rotate([0,45,0]) cube([5,20,5]);    
+    }
+}
+
+
+module waste_pocket()
+{
+    // waste pocket
+    translate([-15,-1,6]) rotate([90,0,0]) cylinder( h=5, r=5, $fn=30);     
+    translate([-15,-1,51]) rotate([90,0,0]) cylinder( h=5, r=5, $fn=30);    
+    translate([-15,-5.9,6]) rotate([90,0,0]) cylinder( h=3, r1=5, r2=4.3, $fn=30);     
+    translate([-15,-5.9,51]) rotate([90,0,0]) cylinder( h=3, r=5, r2=4.3, $fn=30);      
+
+    // opening window
+    translate([-17,-1,51]) rotate([90,0,0]) cube([4,15,4]);      
+}
+
+
+module x_end_idler_base()
+{
+    difference()
+    {
+        union()
+        {
+            x_end_base();
+            difference()
+            {
+                translate(v=[-6,-16.5,30.25]) rotate(a=[0,-90,0]) cylinder(h = 0.5, r1=9, r2=12, $fn=30);
+                translate([-25,-11.5,19]) cube([20,10,24]);
+            }
+        }
+        x_end_idler_holes();
+    }
+    translate([-15,10.5,6]) rotate([90,0,0]) cylinder( h=13, r=6, $fn=30);
+    translate([-15,10.5,51]) rotate([90,0,0]) cylinder( h=13, r=6, $fn=30);
+    
+    difference()
+    {
+        translate(v=[-19,-16.5,30.25]) rotate(a=[0,-90,0]) cylinder(h = 1, r1=9, r2=12, $fn=30);
+        translate([-25,-11.5,19]) cube([20,10,24]);
+        translate(v=[0,-15.5,30.25]) rotate(a=[0,-90,0]) cylinder(h = 80, r=1.8, $fn=30);
+    }
+
+}
+
+module selective_infill()
+mirror([0,1,0]) translate([-50, -33, 0.6])
+{ 
+   difference()
+    {
+        union()
+        {
+            difference()
+            {
+                translate([50,50,0.6]) rotate([0,0,90]) cylinder( h=6, r=11.7, $fn=30); 
+                translate([50,50,-1]) rotate([0,0,90]) cylinder( h=10, r=11.5, $fn=30);
+            }
+            difference()
+            {
+                translate([50,50,0.6]) rotate([0,0,90]) cylinder( h=6, r=10.7, $fn=30); 
+                translate([50,50,-1]) rotate([0,0,90]) cylinder( h=10, r=10.5, $fn=30);
+            } 
+            difference()
+            {
+                translate([50,50,0.6]) rotate([0,0,90]) cylinder( h=6, r=9.9, $fn=30); 
+                translate([50,50,-1]) rotate([0,0,90]) cylinder( h=10, r=9.7, $fn=30);
+            } 
+            difference()
+            {
+                translate([50,50,0.6]) rotate([0,0,90]) cylinder( h=6, r=9, $fn=30); 
+                translate([50,50,-1]) rotate([0,0,90]) cylinder( h=10, r=8.8, $fn=30);
+            } 
+        }
+        translate([57.5,50.5,-1]) rotate([0,0,45]) cube([8,10,9]);  
+        translate([52,30.5,-1]) rotate([0,0,45]) cube([10,20,20]);   
+        translate([32,35.5,-1]) cube([8,30,9]);  
+    }
+} 
+    
+   
+module reinforcement_selective_infill()
+{
+    rotate([90,0,-15,]) translate ([-1.5,8,26])linear_extrude(height = 0.2) polygon( points=[[-2,0],[0,12],[8,0]] ); // bearings
+    rotate([90,0,-50,]) translate ([8.5,8,1.4])linear_extrude(height = 0.2) polygon( points=[[0,0],[0,12],[8,0]] ); //body
+}
+    
+module x_end_idler()
+{
+    mirror([0,1,0]) 
+    difference()
+    {
+        x_end_idler_base();
+        waste_pocket();
+        selective_infill();
+        reinforcement_selective_infill();
+        translate(v=[-8,-15.5,30.25]) rotate(a=[0,-90,0]) cylinder(h = 20, r=1.8, $fn=30);
+        translate([-25,7.5,-1]) rotate([0,0,45])  cube([10,10,100]);
+        //version
+        translate([-23.7,-25,2]) rotate([90,0,90]) linear_extrude(height = 0.6) 
+        { text("R1",font = "helvetica:style=Bold", size=3, center=true); }   
+    }
+    
+    difference()
+    {
+        // bearings stop
+        translate([0,0,57]) rotate([0,0,90]) cylinder( h=1, r=8, $fn=30);
+        translate([0,0,56.9]) rotate([0,0,90]) cylinder( h=0.5, r1=8, r2=7,$fn=30);    
+        translate([0,0,56.5]) rotate([0,0,90]) cylinder( h=2, r=7, $fn=30);
+        translate([0.2,-0.5,50]) rotate([0,0,40]) cube([12,1,10]);
+    }
+}
+
+x_end_idler();
+ 
diff --git a/Printed-Parts/scad/x-end-motor.scad b/Printed-Parts/scad/x-end-motor.scad
new file mode 100644
index 0000000..43308a5
--- /dev/null
+++ b/Printed-Parts/scad/x-end-motor.scad
@@ -0,0 +1,152 @@
+// PRUSA iteration4
+// X end motor
+// GNU GPL v3
+// Josef Průša <iam@josefprusa.cz> and contributors
+// http://www.reprap.org/wiki/Prusa_Mendel
+// http://prusamendel.org
+
+use <x-end.scad>
+
+module x_end_motor_base()
+{
+    x_end_base();
+    translate(v=[-15,31,26.5]) cube(size = [17,44,53], center = true);
+}
+
+module x_end_motor_holes()
+{
+    x_end_holes();
+    
+    // Position to place
+    translate(v=[-1,32,30.25])
+    {
+        // Belt hole
+        translate(v=[-14,1,0]) cube(size = [10,46,22], center = true);
+        
+        // Motor mounting holes
+        translate(v=[20,-15.5,-15.5]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h=70, r=1.8, $fn=30);
+        translate(v=[1,-15.5,-15.5]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h=10, r=3.1, $fn=30);
+        translate(v=[20,-15.5,15.5]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h=70, r=1.8, $fn=30);
+        translate(v=[1,-15.5,15.5]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h=10, r=3.1, $fn=30);
+        translate(v=[20,15.5,-15.5]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h=70, r=1.8, $fn=30);
+        translate(v=[1,15.5,-15.5]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h=10, r=3.1, $fn=30);
+        translate(v=[20,15.5,15.5]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h=70, r=1.8, $fn=30);
+        translate(v=[1,15.5,15.5]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h=10, r=3.1, $fn=30);
+
+        // Material saving cutout 
+        translate(v=[-10,12,10]) cube(size = [60,42,42], center = true);
+
+        // Material saving cutout
+        translate(v=[-10,40,-30]) rotate(a=[45,0,0])  cube(size = [60,42,42], center = true);
+    }
+}
+
+// Motor shaft cutout
+module x_end_motor_shaft_cutout()
+{
+    union()
+        {
+        difference()
+            {
+            translate(v=[0,32,30]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h = 70, r=17, $fn=6);
+            translate(v=[-10,-17+32,30]) cube(size = [60,2,10], center = true);
+            translate(v=[-10,-8+32,-15.5+30]) rotate(a=[60,0,0]) cube(size = [60,2,10], center = true); 
+            translate(v=[-10,8+32,-15.5+30]) rotate(a=[-60,0,0]) cube(size = [60,2,10], center = true);
+            }
+            translate(v=[-30,25.2,-11.8 +30]) rotate(a=[0,90,0]) cylinder(h = 30, r=3, $fn=30);
+            translate(v=[-30,19.05,30]) rotate(a=[0,90,0]) cylinder(h = 30, r=3.5, $fn=100);
+        }
+}
+
+
+
+module selective_infill()mirror([0,1,0]) translate([-50, -33, 0.6])
+{ 
+   difference()
+    {
+        union()
+        {
+            difference()
+            {
+                translate([50,50,0.6]) rotate([0,0,90]) cylinder( h=6, r=11.7, $fn=30);//0, 17, 0.6
+                translate([50,50,-1]) rotate([0,0,90]) cylinder( h=10, r=11.5, $fn=30);
+            }
+            difference()
+            {
+                translate([50,50,0.6]) rotate([0,0,90]) cylinder( h=6, r=10.7, $fn=30); //0, 17, 0.6
+                translate([50,50,-1]) rotate([0,0,90]) cylinder( h=10, r=10.5, $fn=30);
+            } 
+            difference()
+            {
+                translate([50,50,0.6]) rotate([0,0,90]) cylinder( h=6, r=9.9, $fn=30); //0, 17, 0.6
+                translate([50,50,-1]) rotate([0,0,90]) cylinder( h=10, r=9.7, $fn=30);
+            } 
+            difference()
+            {
+                translate([50,50,0.6]) rotate([0,0,90]) cylinder( h=6, r=9, $fn=30); //0, 17, 0.6
+                translate([50,50,-1]) rotate([0,0,90]) cylinder( h=10, r=8.8, $fn=30);
+            } 
+        }
+        translate([57.5,50.5,-1]) rotate([0,0,45]) cube([8,10,9]); // front
+        translate([52,30.5,-1]) rotate([0,0,45]) cube([10,20,20]);  // front angled
+        translate([32,35.5,-1]) cube([8,30,9]); // inner horizontal
+    }
+} 
+   
+ module reinforcement_selective_infill()
+{
+    rotate([90,0,-15,]) translate ([-1.5,8,26])linear_extrude(height = 0.2) polygon( points=[[-2,0],[0,12],[8,0]] ); //bearings
+    rotate([90,0,-50,]) translate ([8.5,8,1.4])linear_extrude(height = 0.2) polygon( points=[[0,0],[0,12],[8,0]] ); //body
+}
+    
+   
+// Final part
+module x_end_motor()
+{
+    difference()
+        {
+            x_end_motor_base();
+            x_end_motor_shaft_cutout();
+            x_end_motor_holes();
+            selective_infill();
+            reinforcement_selective_infill();
+            
+            // waste pocket
+            translate([-15,7,6]) rotate([90,0,0]) cylinder(h=3.5, r=5, $fn=30);   
+            translate([-15,7,51]) rotate([90,0,0]) cylinder(h=3.5, r=5, $fn=30);   
+            translate([-15,3.5,6]) rotate([90,0,0]) cylinder(h=3, r1=5, r2=4, $fn=30);   
+            translate([-15,3.5,51]) rotate([90,0,0]) cylinder(h=3, r1=5, r2=4, $fn=30); 
+          
+            // rod contact window
+            translate([-17,3,55]) cube([4,4,10]);
+            translate([-30,-30,58]) cube([30,30,10]);
+            
+            // version
+            translate([-23.2,-20,2]) rotate([90,0,270]) linear_extrude(height = 0.6) 
+            { text("R1",font = "helvetica:style=Bold", size=3, center=true); }   
+        }
+
+    translate([-15,10,6]) rotate([90,0,0]) cylinder(h=3, r=5, $fn=30);   
+    translate([-15,10,51]) rotate([90,0,0]) cylinder(h=3, r=5, $fn=30);
+ 
+    // bearing stop
+    difference()
+        {
+            translate([0,0,57]) rotate([0,0,90]) cylinder( h=1, r=8, $fn=30);
+            translate([0,0,56.9]) rotate([0,0,90]) cylinder( h=0.5, r1=8, r2=7,$fn=30);    
+            translate([0,0,56.5]) rotate([0,0,90]) cylinder( h=2, r=7, $fn=30);
+            translate([-0.18,-0.5,50]) rotate([0,0,-40]) cube([12,1,10]);
+        }   
+      
+}
+
+x_end_motor();
+
+
+
+
+
+
+
+
+
diff --git a/Printed-Parts/scad/x-end.scad b/Printed-Parts/scad/x-end.scad
new file mode 100644
index 0000000..2767258
--- /dev/null
+++ b/Printed-Parts/scad/x-end.scad
@@ -0,0 +1,109 @@
+// PRUSA iteration4
+// X end prototype
+// GNU GPL v3
+// Josef Průša <iam@josefprusa.cz> and contributors
+// http://www.reprap.org/wiki/Prusa_Mendel
+// http://prusamendel.org
+
+use <bearing.scad>
+use <polyholes.scad>
+rod_distance = 45;
+
+module x_end_base()
+{
+    // Main block
+    height = 58;
+    translate(v=[-15,-9,height/2]) cube(size = [17,39,height], center = true);
+    
+    // Bearing holder
+    vertical_bearing_base();	
+    
+    //Nut trap
+    // Cylinder
+    translate(v=[0,-17,0]) poly_cylinder(h = 8, r=12.5, $fn=25);
+    translate(v=[-6,-10.6,8]) rotate([0,0,48.2]) cube(size = [10,5,1], center = true);
+    
+    // Nut brace
+    rotate([90,0,-15,]) translate ([-1, 8, 24])linear_extrude(height = 4) polygon( points=[[0,0],[0,12],[8,0]] ); 
+    rotate([90,0,-50,]) translate ([9, 8, -0.6])linear_extrude(height = 4) polygon( points=[[0,0],[0,12],[8,0]] ); 
+    
+}
+module reinforcement_selective_infill()
+{
+    rotate([90,0,-15,]) translate ([-1.5, 8, 26])linear_extrude(height = 0.2) polygon( points=[[-2,0],[0,12],[8,0]] ); 
+    
+    rotate([90,0,-50,]) translate ([8.5, 8, 1.4])linear_extrude(height = 0.2) polygon( points=[[0,0],[0,12],[12,0]] ); 
+}
+    
+   
+    
+module x_end_holes()
+{
+    vertical_bearing_holes();
+    // Belt hole
+    translate(v=[-1,0,0])
+    {
+        // Stress relief
+        translate(v=[-5.5-10+1.5,-10-1,30]) cube(size = [18,1,28], center = true);
+        difference()
+        {
+        
+        translate(v=[-5.5-10+1.5,-10,30]) cube(size = [10,46,28], center = true);
+
+        // Nice edges
+        translate(v=[-5.5-10+1.5-5,-10,30+23]) rotate([0,20,0]) cube(size = [10,46,28], center = true);
+        translate(v=[-5.5-10+1.5+5,-10,30+23]) rotate([0,-20,0]) cube(size = [10,46,28], center = true);
+        translate(v=[-5.5-10+1.5,-10,30-23]) rotate([0,45,0]) cube(size = [10,46,28], center = true);
+        translate(v=[-5.5-10+1.5,-10,30-23]) rotate([0,-45,0]) cube(size = [10,46,28], center = true);
+
+        }
+    }
+
+
+// Bottom pushfit rod
+    translate(v=[-15,-41,6]) rotate(a=[-90,0,0]) pushfit_rod(7.8,50);
+
+// Top pushfit rod
+    translate(v=[-15,-41.5,rod_distance+6]) rotate(a=[-90,0,0]) pushfit_rod(7.8,50);
+
+// TR Nut trap
+   // Hole for the nut
+    translate(v=[0,-17, -1]) poly_cylinder(h = 9.01, r = 7, $fn = 25);
+    translate(v=[0,-17, -0.1]) cylinder(h = 0.5, r1 = 6.8+0.8,r2 = 7, $fn = 25);
+
+// Screw holes for TR nut
+    translate(v=[0,-17, 0]) rotate([0, 0, -135]) translate([0, 9.5, -1]) cylinder(h = 10, r = 1.8, $fn=25);
+    translate(v=[0,-17, 0]) rotate([0, 0, -135]) translate([0, -9.5, -1]) cylinder(h = 8, r = 1.8, $fn=25);
+
+// Nut traps for TR nut screws
+    translate(v=[0,-17, 0]) rotate([0, 0, -135]) translate([0, 9.5, 4]) rotate([0, 0, 0])cylinder(h = 5, r = 3.45, $fn=6);
+
+    translate(v=[0,-17, 0]) rotate([0, 0, -135]) translate([0, -9.5, 4]) rotate([0, 0, 30])cylinder(h = 3, r = 3.2, $fn=6);
+    translate([-5.5,-17.2,4]) rotate([0,0,30]) cube([5,5,3]);
+    translate([-0,-17.2,4]) rotate([0,0,60]) cube([5,10,3]);
+}
+
+
+// Final prototype
+module x_end_plain()
+{
+    difference()
+    {
+        x_end_base();
+        x_end_holes();
+    }
+}
+
+x_end_plain();
+
+
+module pushfit_rod(diameter,length)
+{
+    poly_cylinder(h = length, r=diameter/2);
+    difference()
+    {
+        translate(v=[0,-diameter/2.85,length/2]) rotate([0,0,45]) cube(size = [diameter/2,diameter/2,length], center = true);
+        translate(v=[0,-diameter/4-diameter/2-0.4,length/2]) rotate([0,0,0]) cube(size = [diameter,diameter/2,length], center = true);
+    }
+}
+
diff --git a/Printed-Parts/scad/y-belt-holder.scad b/Printed-Parts/scad/y-belt-holder.scad
new file mode 100644
index 0000000..df4958b
--- /dev/null
+++ b/Printed-Parts/scad/y-belt-holder.scad
@@ -0,0 +1,78 @@
+// PRUSA iteration4
+// Y belt holder
+// GNU GPL v3
+// Josef Průša <iam@josefprusa.cz> and contributors
+// http://www.reprap.org/wiki/Prusa_Mendel
+// http://prusamendel.org
+
+module y_belt_holder()
+{
+
+    difference()
+    {
+        // base block
+        union()
+        {
+            translate([-7,-24,44.5]) cube([14,48,8]);
+            translate([-5,-15,29]) cube([12,30,17]);
+        }
+
+        // belt entry 
+        translate([-7.5,-16,39.9]) rotate([0,45,0]) cube([3,32,3]);
+        translate([-7.5,-16,34.9]) rotate([0,45,0]) cube([3,32,3]);
+        
+        // lower belt slot
+        translate([-8.5,-16,34.2]) cube([11.5,32,0.75]);
+        translate([-8.5,-16,35.4]) rotate([0,5,0]) cube([11.5,32,0.2]);
+        translate([-8.5,-16,33.6]) rotate([0,-5,0]) cube([11.5,32,0.2]);
+        for (_step =[-16:2:16])
+        {
+            translate([-8.5,_step,33]) cube([11.5,1,1.5]);
+        }
+        
+        // upper belt slot
+        translate([-8.5,-16,39.2]) cube([11.5,32,0.75]);
+        translate([-8.5,-16,40.4]) rotate([0,5,0]) cube([11.5,32,0.2]);
+        translate([-8.5,-16,38.6]) rotate([0,-5,0]) cube([11.5,32,0.2]);
+        for (_step =[-17:2:16])
+        {
+            translate([-8.5,_step,38.2]) cube([11.5,1,1.5]);
+        }
+        
+        // nice edges
+        translate([-8,-20,21.8]) rotate([45,0,0]) cube([16,10,10]);
+        translate([-8,20,21.8]) rotate([45,0,0]) cube([16,10,10]);
+
+        translate([-8,-30,37]) rotate([45,0,0]) cube([16,10,10]);
+        translate([-8,30,37]) rotate([45,0,0]) cube([16,10,10]);
+        translate([-12.2,-30,44.4]) rotate([0,45,0]) cube([5,60,5]);
+        
+        // mounting screw holes
+        translate([0,-19.50,40]) cylinder( h=30, r=1.65, $fn=30 );
+        translate([0,19.50,40]) cylinder( h=30, r=1.65, $fn=30 );
+        translate([0,-19.25,40]) cylinder( h=30, r=1.65, $fn=30 );
+        translate([0,19.25,40]) cylinder( h=30, r=1.65, $fn=30 );
+        translate([0,-19.0,40]) cylinder( h=30, r=1.65, $fn=30 );
+        translate([0,19.0,40]) cylinder( h=30, r=1.65, $fn=30 );
+        
+        translate([0,-19.5,43.5]) cylinder( h=7, r=3.1, $fn=30 );
+        translate([0,19.5,43.5]) cylinder( h=7, r=3.1, $fn=30 );
+        translate([0,-19.25,43.5]) cylinder( h=7, r=3.1, $fn=30 );
+        translate([0,19.25,43.5]) cylinder( h=7, r=3.1, $fn=30 );
+        translate([0,-19.0,43.5]) cylinder( h=7, r=3.1, $fn=30 );
+        translate([0,19.0,43.5]) cylinder( h=7, r=3.1, $fn=30 );
+        
+    
+    }
+ 
+
+}
+
+difference()
+{
+    translate([-40,0,7]) rotate([0,90,0]) y_belt_holder();
+    //version   
+    translate([8.5,3.5,0.5]) rotate([0,180,90]) linear_extrude(height = 0.6) 
+    { text("R1",font = "helvetica:style=Bold", size=4, center=true); }
+}
+    
diff --git a/Printed-Parts/scad/y-belt-idler.scad b/Printed-Parts/scad/y-belt-idler.scad
new file mode 100644
index 0000000..4dff7dd
--- /dev/null
+++ b/Printed-Parts/scad/y-belt-idler.scad
@@ -0,0 +1,63 @@
+// PRUSA iteration4
+// Y belt idler
+// GNU GPL v3
+// Josef Průša <iam@josefprusa.cz> and contributors
+// http://www.reprap.org/wiki/Prusa_Mendel
+// http://prusamendel.org
+
+module Y_belt_idler()
+{
+    difference()
+    { 
+        // base block
+        translate([-12.5,-20,5]) cube([25,20,35]);
+        translate([-4.75,-27,-1]) cube([9.5,20,50]); 
+        
+        // angled front side   
+        translate([-15,-19.5,-15]) rotate([37,0,0]) cube([30,20,40]); 
+        translate([-15,-12,-15]) rotate([60,0,0]) cube([30,20,40]); 
+        translate([-15,-20,29.5]) rotate([38,0,0]) cube([30,20,20]); 
+
+        // screws
+        translate([0,1,36]) rotate([90,0,0]) cylinder( h=25, r=1.65, $fn=30 ); 
+        translate([0,-2,36]) rotate([90,0,0]) cylinder( h=6, r=3.2 , $fn=6 ); 
+        translate([0,1,10]) rotate([90,0,0]) cylinder( h=25, r=1.65, $fn=30 ); 
+        translate([0,-2,10]) rotate([90,0,0]) cylinder( h=6, r=3.2 , $fn=6 ); 
+        translate([0,-5,36]) rotate([90,0,0]) cylinder( h=6, r=3.2 , r2=3.9, $fn=6 ); 
+        translate([0,-5,10]) rotate([90,0,0]) cylinder( h=6, r=3.2 , r2=3.9, $fn=6 );
+        translate([0,1,36]) rotate([90,0,0]) cylinder( h=2, r=2.5, r2=1.65,$fn=30 ); 
+        translate([0,1,10]) rotate([90,0,0]) cylinder( h=2, r=2.5, r2=1.65,$fn=30 ); 
+        
+        // pulley cut
+        translate([-5,-14,22.5]) rotate([0,90,0]) cylinder( h=10, r=10, $fn=30 ); 
+           
+        // pulley screw axis 
+        translate([-13.5,-14,22.5]) rotate([0,90,0]) cylinder( h=30, r=1.6, $fn=30 ); 
+        translate([-14,-14,22.5]) rotate([0,90,0]) cylinder( h=7, r=3.2, $fn=6 ); 
+        translate([-14,-14,22.5]) rotate([0,90,0]) cylinder( h=4, r2=3.2, r1=4, $fn=6 ); 
+        translate([8,-14,22.5]) rotate([0,90,0]) cylinder( h=6, r=3.2, $fn=30 ); 
+        
+        // selective infill
+        translate([-10,-18,18]) cube([3,17,0.5]);
+        translate([8,-18,18]) cube([3,17,0.5]);
+        translate([-10,-18,27]) cube([3,17,0.5]);
+        translate([8,-18,27]) cube([3,17,0.5]);
+        translate([-10,-17,16]) cube([3,15,0.5]);
+        translate([8,-17,16]) cube([3,15,0.5]);
+        translate([-10,-16,29]) cube([3,15,0.5]);
+        translate([8,-16,29]) cube([3,15,0.5]);
+        translate([-8,-2,30]) cube([16,1,0.5]);
+        translate([-8,-2,13]) cube([16,1,0.5]);
+        
+        // upper side mark
+        translate([8.5,-3.5,39]) rotate([0,0,0]) cylinder( h=2, r=1.5, $fn=30 ); 
+        
+        //version   
+        translate([3.5,-0.5,20]) rotate([90,0,180]) linear_extrude(height = 0.6) 
+        { text("R1",font = "helvetica:style=Bold", size=4, center=true); }
+    }
+    
+}   
+    
+rotate([-90,0,0]) Y_belt_idler(); 
+
diff --git a/Printed-Parts/scad/y-holder-front.scad b/Printed-Parts/scad/y-holder-front.scad
new file mode 100644
index 0000000..2a80f9f
--- /dev/null
+++ b/Printed-Parts/scad/y-holder-front.scad
@@ -0,0 +1,67 @@
+// PRUSA iteration4
+// Y holder front
+// GNU GPL v3
+// Josef Průša <iam@josefprusa.cz> and contributors
+// http://www.reprap.org/wiki/Prusa_Mendel
+// http://prusamendel.org
+
+module ziptie_round_edge()
+{
+    difference()
+    {
+        translate([0,0,0]) rotate([90,0,0]) cylinder( h=3, r=4, $fn=30 );  
+        translate([0,1,0]) rotate([90,0,0]) cylinder( h=5, r=2, $fn=30 );  
+        translate([-10,-4,0]) cube([20,5,5]);
+        translate([-20,-4,-13]) cube([20,5,20]);
+    }
+}
+
+
+module part()    
+{
+
+    difference()
+    {
+        union()
+        {
+            // body block
+            translate([-13,0,0]) cube([26,10,12]);
+            translate([-4,0,-1.5]) cube([8,10,2]);
+        }
+
+        // y-axis cut
+        translate([0,11,10.5]) rotate([90,0,0]) cylinder( h=14, r=4, $fn=30 );
+        translate([0,11,10.5]) rotate([90,0,0]) cylinder( h=2, r1=4.5, r2=4, $fn=30 );
+        translate([0,1,10.5]) rotate([90,0,0]) cylinder( h=2, r1=4, r2=4.5, $fn=30 );
+        translate([-7,-1,14.5]) rotate([0,45,0]) cube([10,20,10]);
+        translate([0,11,10.5]) rotate([90,0,0]) cylinder( h=1.4, r1=5, r2=4, $fn=30 );
+
+        // screw holes
+        translate([-5.5,9,3.5]) rotate([90,0,0]) cylinder( h=20, r=1.75, $fn=30 );
+        translate([5.5,9,3.5]) rotate([90,0,0]) cylinder( h=20, r=1.75, $fn=30 );
+        translate([-5.5,1,3.5]) rotate([90,0,0]) cylinder( h=2, r1=1.75, r2=2.6, $fn=30 );
+        translate([5.5,1,3.5]) rotate([90,0,0]) cylinder( h=2, r1=1.75, r2=2.6, $fn=30 );
+
+        // ziptie
+        translate([7.8,8,9]) ziptie_round_edge();
+        translate([-7.8,5,9]) rotate([0,0,180]) ziptie_round_edge();
+        translate([-8.1,5,5]) cube([16.2,3,2]);
+        translate([0.8,5,24.5]) rotate([0,60,0]) cube([20,3,2]);
+        translate([-1.8,5,26.5]) rotate([0,120,0]) cube([20,3,2]);
+
+        // nuts
+        translate([-8.2,2,-3.4]) cube([5.6,2.1,10]);
+        translate([2.8,2,-3.4]) cube([5.6,2.1,10]);
+
+        // upper corners
+        translate([4,-1,20]) rotate([0,60,0]) cube([20,30,20]);
+        translate([-21.2,-1,30]) rotate([0,120,0]) cube([20,30,20]);
+        translate([-5,-6,-2]) cube([10,10,2]);
+        translate([-15,10,-6.5]) rotate([45,0,0]) cube([30,5,5]);
+
+    }
+}
+
+rotate([-90,0,0]) part();
+
+
diff --git a/Printed-Parts/scad/y-holder-rear.scad b/Printed-Parts/scad/y-holder-rear.scad
new file mode 100644
index 0000000..82008d3
--- /dev/null
+++ b/Printed-Parts/scad/y-holder-rear.scad
@@ -0,0 +1,60 @@
+// PRUSA iteration4
+// Y holder rear
+// GNU GPL v3
+// Josef Průša <iam@josefprusa.cz> and contributors
+// http://www.reprap.org/wiki/Prusa_Mendel
+// http://prusamendel.org
+
+module ziptie_round_edge()
+{
+    difference()
+    {
+        translate([0,0,0]) rotate([90,0,0]) cylinder( h=3, r=4, $fn=30 );  
+        translate([0,1,0]) rotate([90,0,0]) cylinder( h=5, r=2, $fn=30 );  
+        translate([-10,-4,0]) cube([20,5,5]);
+        translate([-20,-4,-13]) cube([20,5,20]);
+    }
+}
+
+
+    
+module part()
+{
+    difference()
+    {
+
+    // body block
+    translate([-13,0,-2]) cube([26,10,14]);
+
+    // y-axis cut
+    translate([0,11,10.5]) rotate([90,0,0]) cylinder( h=14, r=4, $fn=30 );
+    translate([0,11,10.5]) rotate([90,0,0]) cylinder( h=2, r1=4.5, r2=4, $fn=30 );
+    translate([0,1,10.5]) rotate([90,0,0]) cylinder( h=2, r1=4, r2=4.5, $fn=30 );
+    translate([-7,-1,14.5]) rotate([0,45,0]) cube([10,20,10]);
+
+    // screw holes
+    translate([-5.5,11,3.5]) rotate([90,0,0]) cylinder( h=20, r=1.7, $fn=30 );
+    translate([5.5,11,3.5]) rotate([90,0,0]) cylinder( h=20, r=1.7, $fn=30 );
+    translate([-5.5,1,3.5]) rotate([90,0,0]) cylinder( h=2, r=1.7, r2=3,$fn=30 );
+    translate([5.5,1,3.5]) rotate([90,0,0]) cylinder( h=2, r=1.7, r2=3, $fn=30 );
+
+    // ziptie
+    translate([7.8,8,9]) ziptie_round_edge();
+    translate([-7.8,5,9]) rotate([0,0,180]) ziptie_round_edge();
+    translate([-8.1,5,5]) cube([16.2,3,2]);
+    translate([0.8,5,24.5]) rotate([0,60,0]) cube([20,3,2]);
+    translate([-1.8,5,26.5]) rotate([0,120,0]) cube([20,3,2]);
+
+    // nuts
+    translate([-8.2,2,-3.4]) cube([5.6,2.1,10]);
+    translate([2.8,2,-3.4]) cube([5.6,2.1,10]);
+
+    // upper corners
+    translate([4,-1,20]) rotate([0,60,0]) cube([20,30,20]);
+    translate([-21.2,-1,30]) rotate([0,120,0]) cube([20,30,20]);
+    translate([-20,15,-9]) rotate([50,0,0]) cube([40,10,10]);
+    
+    }
+}
+
+rotate([90,0,0]) part();
\ No newline at end of file
diff --git a/Printed-Parts/scad/y-motor-holder.scad b/Printed-Parts/scad/y-motor-holder.scad
new file mode 100644
index 0000000..ca10554
--- /dev/null
+++ b/Printed-Parts/scad/y-motor-holder.scad
@@ -0,0 +1,81 @@
+// PRUSA iteration4
+// Y motor holder
+// GNU GPL v3
+// Josef Průša <iam@josefprusa.cz> and contributors
+// http://www.reprap.org/wiki/Prusa_Mendel
+// http://prusamendel.org
+
+module holder()
+{
+    difference()
+    {
+        // base body
+        translate([-6,-1.5,0]) cube([19,42,47]);
+
+        // shape cuts
+        translate([-20,19.5,26]) rotate([0,90,0]) cylinder( h=35, r=12, $fn=30 );   
+        translate([-11,20,15]) cube([26,23,64]);
+        translate([-20,5.5,-1]) cube([26,41,64]);
+        translate([-20,-5,37]) cube([26,21,20]);
+        translate([-20,-1,37]) cube([26,30,20]);
+        
+        // lower motor screw
+        translate([-20,35 ,10.5]) rotate([0,90,0]) cylinder( h=40, r=1.65, $fn=30 ); 
+        translate([-7,35,10.5]) rotate([0,90,0]) cylinder( h=15, r=3.1, $fn=30 );         
+        
+        // upper motor screw    
+        translate([-20,4,41.5]) rotate([0,90,0]) cylinder( h=40, r=1.65, $fn=30 );         
+        translate([4,4,41.5]) rotate([0,90,0]) cylinder( h=4, r=3.1, $fn=30 );         
+        
+        // lower frame screw    
+        translate([0,12,7]) rotate([90,0,0]) cylinder( h=40, r=1.6, $fn=30 ); 
+        translate([0,7,7]) rotate([90,0,0]) cylinder( h=5, r=3.2, $fn=6 ); 
+        translate([0,6.6,7]) rotate([90,0,0]) cylinder( h=2, r2=3.2, r1=4, $fn=6 ); 
+        
+        // upper frame screw    
+        translate([0,12,29]) rotate([90,0,0]) cylinder( h=40, r=1.6, $fn=30 ); 
+        translate([0,7,29]) rotate([90,0,0]) cylinder( h=5, r=3.2, $fn=6 ); 
+        translate([0,6.6,29]) rotate([90,0,0]) cylinder( h=2, r2=3.2, r1=4, $fn=6 );
+
+        // corners
+        translate([-10,20,42]) rotate([45,0,0]) cube([60,10,10]);        
+        translate([-10,-5,42]) rotate([45,0,0]) cube([60,10,10]);        
+        translate([-10,38,-7]) rotate([45,0,0]) cube([60,20,10]);        
+        translate([-10,43,10]) rotate([45,0,0]) cube([60,20,20]);  
+        translate([-14,-10,-2]) rotate([0,45,0]) cube([10,50,10]);        
+        translate([-14,-10,37]) rotate([0,45,0]) cube([10,50,10]);        
+        translate([18,-10,-5]) rotate([0,0,45]) cube([10,10,60]);        
+    }
+    
+    // reinforcement
+    translate([7.8,1.9,0]) rotate([0,0,55]) cube([5,5,18]);
+    difference()
+        {
+            translate([7.8,1.9,13.6]) rotate([0,0,55]) cube([5,5,23.4]);
+            translate([-20,19.5,26]) rotate([0,90,0]) cylinder( h=35, r=12, $fn=30 );   
+        }
+   
+}
+ 
+module y_motor_holder()
+{
+    rotate([0,90,0])
+    difference()
+        {
+        holder();
+       
+        // selective infill
+        translate([-0,1,33]) cube([12,0.5,2]);        
+        translate([-3,1,2]) cube([15,0.5,1]);        
+        translate([-5,1.5,13]) cube([17,0.5,8]);        
+        
+        //version
+        translate([-1,-1,15]) rotate([90,0,0]) linear_extrude(height = 0.6) 
+        { text("R1",font = "helvetica:style=Bold", size=5, center=true); }
+        }
+}    
+    
+y_motor_holder();    
+    
+    
+    
\ No newline at end of file
diff --git a/Printed-Parts/scad/z-axis-bottom.scad b/Printed-Parts/scad/z-axis-bottom.scad
new file mode 100644
index 0000000..ff23b0e
--- /dev/null
+++ b/Printed-Parts/scad/z-axis-bottom.scad
@@ -0,0 +1,127 @@
+// PRUSA iteration4
+// Z axis bottom holder
+// GNU GPL v3
+// Josef Průša <iam@josefprusa.cz> and contributors
+// http://www.reprap.org/wiki/Prusa_Mendel
+// http://prusamendel.org
+
+module z_bottom_base()
+{
+     translate([0,-1.5,0]) cube([8,49,16+20]); // plate touching the base
+     translate([0,-5,0]) cube([30,4.01,22]); // plate touching the base
+     translate([0,41.5,0]) cube([30,6.01,22]); // plate touching the base
+     translate([0,-5,0]) cube([50,52.5,5]); // plate touching the base
+}
+
+module z_bottom_fancy()
+{
+    // corner cutouts
+    translate([0.5,-2.5,0]) rotate([0,0,-45-180]) translate([-15,0,-1]) cube([30,30,51]);
+    translate([0.5,40-0.5+5,0]) rotate([0,0,-45+90]) translate([-15,0,-1]) cube([30,30,51]);
+ 
+    translate([8,0,12+20+6]) rotate([0,-90,0]) translate([0,-5,0]) cube([30,50,30]);
+    translate([20,-2,12+8]) rotate([45,0,0]) rotate([0,-90,0]) translate([0,-5,0]) cube([30,50,30]);
+    translate([25,20,12+30]) rotate([-45,0,0]) rotate([0,-90,0]) translate([0,-5,0]) cube([30,50,30]);
+    translate([50-2.5,-5+2.5+67,0]) rotate([0,0,-45-90]) translate([-15,0,-1]) cube([30,30,51]);
+    translate([50-2.5,-5+2.5,0]) rotate([0,0,-45-90]) translate([-15,0,-1]) cube([30,30,51]);
+ 
+    translate([-38,-10,-2]) rotate([0,45,0]) cube([30,60,30]);
+
+    // Stiffner cut out
+    translate([30,0,5.5]) rotate([0,-45,0]) translate([0,-5,0]) cube([30,60,30]);
+    
+    translate([-5,-10,-8.0]) rotate([45,0,0]) cube([60,10,10]);
+    translate([-5,52.0,-8.5]) rotate([45,0,0]) cube([60,10,10]);
+    translate([47,-10,-2]) rotate([0,45,0]) cube([30,60,30]);
+    
+    translate([49,37.5,-2]) rotate([0,45,45]) cube([30,30,30]);
+    translate([29,-16.7,-2]) rotate([0,45,-45]) cube([30,30,30]);
+}
+
+module z_bottom_holes()
+{
+    // Frame mounting screw holes
+    translate([-1,10,12]) rotate([0,90,0]) cylinder(h = 20, r=1.8, $fn=30);
+    translate([-1,10+20,12]) rotate([0,90,0]) cylinder(h = 20, r=1.8, $fn=30);
+    translate([-1,10+10,32]) rotate([0,90,0]) cylinder(h = 20, r=1.8, $fn=30);
+
+    // Frame mounting screw head holes
+    translate([4,10,12]) rotate([0,90,0]) cylinder(h = 20, r=3.1, $fn=30);
+    translate([4,10+20,12]) rotate([0,90,0]) cylinder(h = 20, r=3.1, $fn=30);
+    translate([4,10+10,32]) rotate([0,90,0]) cylinder(h = 20, r=3.1, $fn=30);
+    translate([4,10+10-3.1,10+20+2]) cube([10,6.2,10]);
+    translate([4,10,38]) rotate([0,45,0]) cube([10,20,10]);
+
+    // Z rod holder
+    translate([25+4.3,3,-1]) rotate([0,0,0]) cylinder(h = 50, r=4.1, $fn=50);
+    translate([25+4.3,3,-1]) rotate([0,0,0]) cylinder(h = 2.6, r1=4.5, r2=4.1, $fn=50);
+    translate([25+4.3-1,3,0.6]) cube([2,10,7]); // it's bit up because it helps with printing
+
+    // motor mounting
+    translate([25+4.3,20,-1]){
+
+    translate([15.5,15.5,-1]) cylinder(h = 20, r=1.8, $fn=30);
+    translate([15.5,-15.5,-1]) cylinder(h = 20, r=1.8, $fn=30);
+    translate([-15.5,15.5,-1]) cylinder(h = 20, r=1.8, $fn=30);
+    translate([-15.5,-15.5,-1]) cylinder(h = 20, r=1.8, $fn=30);
+        
+    translate([15.5,15.5,0]) cylinder(h = 2, r1=2.1, r2=1.8,$fn=30);
+    translate([15.5,-15.5,0]) cylinder(h = 2, r1=2.1, r2=1.8, $fn=30);
+    translate([-15.5,15.5,0]) cylinder(h = 2, r1=2.1, r2=1.8, $fn=30);
+    translate([-15.5,-15.5,0]) cylinder(h = 2, r1=2.1, r2=1.8, $fn=30);
+
+    // motor opening
+    translate([0,0,-1]) cylinder(h = 20, r=12, $fn=30);
+ }
+
+}
+
+module z_bottom_right()
+{
+    difference()
+    {
+        difference()
+        {
+            z_bottom_base();
+            z_bottom_fancy();
+            z_bottom_holes();
+        }
+        translate([7.5,25,12]) rotate([90,180,90]) linear_extrude(height = 0.6) 
+        { text("R1",font = "helvetica:style=Bold", size=5, center=true); }
+    }
+}
+
+module z_bottom_left()
+{
+    difference()
+    {
+        translate([0,-13,0]) mirror([0,1,0]) 
+        difference()
+        {
+            z_bottom_base();
+            z_bottom_fancy();
+            z_bottom_holes();
+        }
+        translate([7.5,-28.5,12]) rotate([90,180,90]) linear_extrude(height = 0.6) 
+        { text("R1",font = "helvetica:style=Bold", size=5, center=true); }
+    }
+}
+
+
+
+ 
+z_bottom_right();
+z_bottom_left();
+ 
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/Printed-Parts/scad/z-axis-top.scad b/Printed-Parts/scad/z-axis-top.scad
new file mode 100644
index 0000000..268efcd
--- /dev/null
+++ b/Printed-Parts/scad/z-axis-top.scad
@@ -0,0 +1,107 @@
+// PRUSA iteration4
+// Z axis top holder
+// GNU GPL v3
+// Josef Průša <iam@josefprusa.cz> and contributors
+// http://www.reprap.org/wiki/Prusa_Mendel
+// http://prusamendel.org
+
+module z_top_base()
+{
+    translate([0,-5,0]) cube([8,45,16]); // plate touching the base
+    translate([0,-5,0]) cube([33,3.9,12]); // plate touching the base
+    translate([0,-5,0]) cube([38,45,5]); // plate touching the base   
+    translate([25+4.3,3.2,5]) rotate([0,0,0]) cylinder(h = 2.5, r=7, $fn=60);
+}
+
+module z_top_fancy()
+{
+    // Corner cutouts
+    translate([0.5,0.5,0]) rotate([0,0,-45-180]) translate([-15,0,-1]) cube([30,30,51]);    
+
+    // frame side angle
+    translate([-13,40+5+10.2,-3]) rotate([0,0,-45-0]) translate([0,0,-1]) cube([30,30,51]);
+    translate([8,28,-3]) translate([0,0,-1]) cube([50,50,51]);       
+
+    // cut to shape
+    translate([4,-1,12]) rotate([0,0, 0]) translate([0,-5,0]) cube([30,50,30]);          
+    translate([6,0,12]) rotate([0,-45, 0]) translate([0,-5,0]) cube([30,50,30]);
+    translate([8,3.9,10]) rotate([0,-45, 0]) translate([0,-5,0]) cube([30,50,30]);
+
+    // nice edges
+    translate([38-2.5,-5+2.5,-3]) rotate([0,0,-45-90]) translate([-15,0,-1]) cube([30,30,51]);         
+    translate([-10,49,3.2]) rotate([45,0,0]) translate([-15,0,-1]) cube([50,20,20]);         
+    
+    // outer corner
+    translate([35,26,-3]) rotate([0,0,-45])    translate([-15,0,-1]) cube([30,30,51]);
+    translate([0,0,5]) rotate([45+180,0,0]) rotate([0,0,-45+90]) translate([0,0,-15]) cube([30,30,30]);
+
+    // Stiffner cut out
+    translate([33,-1,7.5]) rotate([0,-45,0]) translate([0,-5,0]) cube([30,50,30]);
+    
+    // side cut out
+    translate([-6,-5,-5.55]) rotate([45,0,0])  cube([50,5,5]);
+    translate([-6,-5,-0.8]) rotate([0,45,0])  cube([5,50,5]);
+}
+
+module z_top_holes()
+{
+    // Screw holes frame
+    translate([-1,10,10])      rotate([0,90,0]) cylinder(h = 20, r=1.8, $fn=30);
+    translate([-1,10+20,10])   rotate([0,90,0]) cylinder(h = 20, r=1.8, $fn=30);
+
+    // Screw heads
+    translate([4,10,10]) rotate([0,90,0]) cylinder(h = 20, r=3.1, $fn=30);
+    translate([4,10-3.1,10]) cube([10,6.2,10]);
+    translate([4,10+20,10])  rotate([0,90,0]) cylinder(h = 20, r=3.1, $fn=30);
+    translate([4,10+20-3.1,10]) cube([10,6.2,10]);
+
+    // Z rod holder
+    translate([25+4.3,3,0.6]) rotate([0,0,0]) cylinder(h = 50, r=4.10, $fn=50);
+    translate([25+4.3,3,3.4]) rotate([0,0,0]) cylinder(h = 4.2, r2=4.3, r1=4, $fn=50);
+    
+    // material saving cut
+    translate([16,10,-4]) rotate([0,0,0]) cylinder(h = 50, r=8, $fn=6);  
+    translate([16,28,-4]) rotate([0,0,0]) cylinder(h = 50, r=8, $fn=6);  
+
+    // z screw hole
+    translate([25+4.3,3+17,3]) rotate([0,0,0]) cylinder(h = 50, r=5.8, $fn=15); // screw hole
+    translate([25+4.3,3+17,0.6]) rotate([0,0,0]) cylinder(h = 50, r=5.8, $fn=15); // screw hole
+    translate([25+4.3-1,3,0.6]) cube([2,15,8]); // it's bit up because it helps with printing
+    
+    //selective infill
+    translate([36.5,1.5,0.5]) cube([0.1,20,3.5]);    
+    translate([10,-3,0.5]) cube([22,0.1,3.5]);  
+    translate([3,1,0.5]) cube([18,0.1,3.5]);    
+    translate([1.5,19,0.5]) cube([21,0.1,3.5]); 
+ 
+}
+
+module z_top_right(){
+    difference()
+    {
+        z_top_base();
+        z_top_fancy();
+        z_top_holes();
+         //version
+        translate([12,-1.5,10]) rotate([90,180,180]) linear_extrude(height = 0.6) 
+        { text("R1",font = "helvetica:style=Bold", size=4, center=true); }
+    }
+}
+
+module z_top_left(){
+    translate([0,-12,0]) mirror([0,1,0]) 
+    difference()
+    {
+        z_top_base();
+        z_top_fancy();
+        z_top_holes();
+        //version
+        translate([19,-1,10]) rotate([90,180,0]) linear_extrude(height = 0.6) 
+        { text("R1",font = "helvetica:style=Bold", size=4, center=true); }
+    }
+}
+
+// Final parts
+z_top_left();
+z_top_right();
+
diff --git a/Printed-Parts/scad/z-screw-cover.scad b/Printed-Parts/scad/z-screw-cover.scad
new file mode 100644
index 0000000..345f5f7
--- /dev/null
+++ b/Printed-Parts/scad/z-screw-cover.scad
@@ -0,0 +1,33 @@
+// PRUSA iteration4
+// Z screw cover
+// GNU GPL v3
+// Josef Průša <iam@josefprusa.cz> and contributors
+// http://www.reprap.org/wiki/Prusa_Mendel
+// http://prusamendel.org
+
+
+translate(v=[-4.2, 0, 4.3]) rotate([0,90,0])  cylinder(r1=0.6, r2=0.4, h = 1, $fn=60);
+translate(v=[4.2, 0, 4.3]) rotate([0,-90,0])  cylinder(r1=0.6, r2=0.4, h = 1, $fn=60);
+translate(v=[0, 4.2, 4.3]) rotate([90,0,0])  cylinder(r1=0.6, r2=0.4, h = 1, $fn=60);
+translate(v=[0, -4.2, 4.3]) rotate([-90,0,0])  cylinder(r1=0.6, r2=0.4, h = 1, $fn=60);
+
+translate(v=[-4.2, 0.5, 4.0]) rotate([0,90,0])  cylinder(r1=0.6, r2=0.3, h = 0.8, $fn=60);
+translate(v=[4.2, -0.5, 4.0]) rotate([0,-90,0])  cylinder(r1=0.6, r2=0.3, h = 0.8, $fn=60);
+translate(v=[0.5, 4.2, 4.0]) rotate([90,0,0])  cylinder(r1=0.6, r2=0.3, h = 0.8, $fn=60);
+translate(v=[-0.5, -4.2, 4.0]) rotate([-90,0,0])  cylinder(r1=0.6, r2=0.3, h = 0.8, $fn=60);
+
+translate(v=[-4.2, 1, 3.7]) rotate([0,90,0])  cylinder(r1=0.5, r2=0.3, h = 0.6, $fn=60);
+translate(v=[4.2, -1, 3.7]) rotate([0,-90,0])  cylinder(r1=0.5, r2=0.3, h = 0.6, $fn=60);
+translate(v=[1, 4.2, 3.7]) rotate([90,0,0])  cylinder(r1=0.5, r2=0.3, h = 0.6, $fn=60);
+translate(v=[-1, -4.2, 3.7]) rotate([-90,0,0])  cylinder(r1=0.5, r2=0.3, h = 0.6, $fn=60);
+
+difference()
+{
+    union()
+        {
+            translate(v=[0, 0, 1]) cylinder(r1=8, r2=4.6, h = 4);
+            cylinder(r=8, h = 1, $fn=60);
+        }
+        translate(v=[0, 0, -1]) cylinder(r=4.2, h = 7, $fn=60);
+        cylinder(r1=4.5, r2=4.2, h = 1, $fn=60);
+}
\ No newline at end of file