diff --git a/Printed-Parts/scad/x-carriage.scad b/Printed-Parts/scad/x-carriage.scad
index 99fb3af..8bc02a9 100644
--- a/Printed-Parts/scad/x-carriage.scad
+++ b/Printed-Parts/scad/x-carriage.scad
@@ -7,6 +7,85 @@
 
 use <bearing.scad>
 
+module belt_cut()
+{
+    rotate([0,0,180]) 
+    {
+    translate([-20,0,0]) cube([39,0.75,15]);
+    translate([-20,0,5]) rotate([-7,0,0]) cube([39,0.75,10]);
+    translate([-20,0,5]) rotate([10,0,0]) cube([39,0.75,10]);
+     for (_step =[-20:2:18])
+        {
+            translate([_step,0.5,0]) cube([1,1.0,10]);
+        }
+        for (_step =[-20:2:18])
+        {
+            translate([_step,0.5,5]) rotate([-7,0,0]) cube([1,1,10]);
+        }
+    }
+}
+
+
+
+module left_belt_cut()
+{
+
+        translate([-22.5,30.2,7]) cylinder(r=1.5, h=100, $fn=30);
+        translate([-23.0,20,7]) cube([2,10,30]);
+        translate([-56.5,28.5,7]) belt_cut();
+        translate([13.5,20.5,0]) rotate([0,0,25])
+        {
+            difference()
+            {
+            translate([-56.5,28.5,7]) belt_cut();
+            translate([-80,25,7]) cube([37.5,10,30]);
+            }
+        }
+        translate([13.2,2.38,0]) rotate([0,0,0])
+        {
+            difference()
+            {
+            translate([-56.5,28.5,7]) belt_cut();
+            translate([-82.42,25,7]) cube([37.5,10,30]);
+            }
+        }
+        translate([-45,17.6,4]) rotate([0,0,-15]) cube([10,3,30]);
+        translate([-31.5,30.4,10]) rotate([-10,0,15]) cylinder(r=0.2, h=100, $fn=30);
+        translate([-31.6,30.75,7]) rotate([0,0,0]) cylinder(r=0.2, h=100, $fn=30);
+}
+
+
+module right_belt_cut()
+{
+        // right belt cut
+        translate([-9.6,29.7,7]) cylinder(r=1.5, h=100, $fn=30);
+        translate([-11.1,19.8,7]) cube([2,10,30]);
+        translate([22.5,25.5,7]) belt_cut();
+        translate([66.65,1.95,0]) rotate([0,0,0])
+        {
+            difference()
+            {
+                translate([-56.5,28.5,7]) belt_cut();
+                translate([-71.55,25,7]) cube([37.5,10,30]);
+            }
+        }
+        translate([43.2,-30.25,0]) rotate([0,0,-30])
+        {
+        difference()
+            {
+                translate([-56.5,28.5,7]) belt_cut();
+                translate([-82.1,25,7]) cube([10,10,30]);
+                translate([-61.5,25,7]) cube([20.5,10,30]);
+            }
+        }
+        translate([2,14.6,7]) rotate([0,0,15]) cube([10,3,30]);
+        translate([-5.1,30,10]) rotate([-10,0,-15]) cylinder(r=0.2, h=100, $fn=30);
+        translate([-5,30.3,7]) rotate([0,0,0]) cylinder(r=0.2, h=100, $fn=30);
+}
+    
+    
+    
+
 module x_carriage_body(){
     
     // Small bearing holder
@@ -35,41 +114,10 @@ module x_carriage_body(){
     
     // Belt holder base
     translate([-42.5,20,1]) cube([52,16,6]);
-    translate([-16.5-12,24.5,1])cylinder(r=4.5, h=13, $fn=25);
-    translate([-17.5+12,24.5,1])cylinder(r=4.5, h=13, $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([2,27,1]) cube([10,6,14]);
-        translate([2,24-2.3-4.5,1]) cube([7.5,7.5,14]);
-        translate([-0.5,27,1]) cube([8,7,1]);
-    }
-    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]);
-}
+    // new belt holder base block
+    translate([-42.5,18,7]) cube([52,16.3,8]);
     
-// Belt Insert L
-difference()
-{
-    union()
-    {
-        translate([-33,3,0])
-        {
-            scale([-1,1,1])
-            {
-                translate([0,27,1]) cube([12.5,3,14]);
-                translate([2,27-7.5-2.3,1]) cube([12.5,7.5,14]);
-                //#translate([-0.5,27,1]) cube([8,7,1]);
-            }
-        }
-     }
-     translate([-36.5,27.7,5.5]) rotate([0,0,-55]) cube([5,5.5,10]);
-}
     
 }
 
@@ -86,15 +134,15 @@ module x_carriage_holes(){
     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);
+        translate([0.75,45,12]) rotate([0,90,0]) cylinder(r=10.8, h=3.5, $fn=50);   
+        translate([0,45,12]) rotate([0,90,0]) cylinder(r=9, h=6, $fn=50);
         }
     // upper ziptie left
     translate([-38,0,0])
     difference()
         {
-        translate([0.75,45,12]) rotate([0,90,0]) cylinder(r=10.8,h=3.5,$fn=25);   
-        translate([0,45,12]) rotate([0,90,0]) cylinder(r=9, h=6, $fn=25);
+        translate([0.75,45,12]) rotate([0,90,0]) cylinder(r=10.8,h=3.5,$fn=50);   
+        translate([0,45,12]) rotate([0,90,0]) cylinder(r=9, h=6, $fn=50);
         }
     
     // upper ziptie head
@@ -102,12 +150,12 @@ module x_carriage_holes(){
     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); 
+    translate([-17.5+12,24.5,-1])cylinder(r=1.65, h=20, $fn=50);
+    translate([-17.5+12,24.5,0.9])cylinder(r1=2.0,r2=1.65, h=1, $fn=50);
+    translate([-17.5+12,24.5,12])cylinder(r=5.8/2, h=20, $fn=50); 
+    translate([-16.5-12,24.5,-1])cylinder(r=1.65, h=20, $fn=50);
+    translate([-16.5-12,24.5,0.9])cylinder(r1=2.1,r2=1.65, h=1, $fn=50);
+    translate([-16.5-12,24.5,12])cylinder(r=5.8/2, h=20, $fn=50); 
     
     // Carriage slimer
     translate([-55.5+3,19,-1])cube([10,40,30]);
@@ -123,10 +171,6 @@ 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]);	
  
@@ -196,24 +240,39 @@ module final_cutout(){
     translate([-18.5,9.7,10]) 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]);
+    translate([-6.5,-11,4]) rotate([0,0,0]) cylinder(r=1.65, h=20, $fn=50);  
+    translate([-26.5,-11,4]) rotate([0,0,0]) cylinder(r=1.65, h=20, $fn=50);  
+    translate([-29.3,-14,10]) cube([5.6,7,2.1]);
+    translate([-09.3,-14,10]) cube([5.6,7,2.1]);
+    // better printing bridges
+    translate([-29.3,-12.65,10.35]) cube([5.6,3.3,2.1]);
+    translate([-09.3,-12.65,10.35]) cube([5.6,3.3,2.1]);
+    translate([-28.15,-12.65,10.7]) cube([3.3,3.3,2.1]);
+    translate([-8.15,-12.65,10.7]) cube([3.3,3.3,2.1]);
     
-    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]);
+    
+    // x-carriage-back mounting screws
+    translate([-4,56,0]) rotate([0,0,0]) cylinder(r=1.65, h=40, $fn=50);  
+    translate([-27.5,56,0]) rotate([0,0,0]) cylinder(r=1.65, h=40, $fn=50);  
+    translate([-30.3,53,8]) cube([5.6,8,2.1]);
+    translate([-6.8,53,8]) cube([5.6,8,2.1]);
+    // better printing bridges
+    translate([-6.8,54.35,8.35]) cube([5.6,3.3,2]);
+    translate([-5.65,54.35,8.7]) cube([3.3,3.3,2]);
+    translate([-30.3,54.35,8.35]) cube([5.6,3.3,2]);
+    translate([-29.15,54.35,8.7]) cube([3.3,3.3,2]);
+    
+    
+    // center mounting screw
+    translate([-16,29,0]) rotate([0,0,0]) cylinder(r=1.65, h=40, $fn=50);
+    translate([-18.8,26,11]) cube([5.6,8,2.1]);
     translate([-21,33,11]) cube([10,8,6]);
+    // better printing bridges
+    translate([-18.8,27.35,11]) cube([5.6,3.3,2.1]);
+    translate([-17.65,27.35,11.25]) cube([3.3,3.3,2.1]);
     
-    
-    translate([-16.5,-18,-5]) rotate([-5,0,0]) cylinder(r=6, h=40, $fn=30);  
+    translate([-16.5,-18,-5]) rotate([-5,0,0]) cylinder(r=6, h=40, $fn=50);  
     
     }
 
@@ -262,15 +321,15 @@ difference()
             }
         translate([6,-17,0]) rotate([0,45,0]) cube([10,8,11]);
         translate([-12,-18.5,0]) rotate([0,0,-25]) cube([15,8,15]);
-        translate([-6.5,-11,4]) rotate([0,0,0]) cylinder(r=1.65, h=20, $fn=30); 
+        translate([-6.5,-11,4]) rotate([0,0,0]) cylinder(r=1.65, h=20, $fn=50); 
         translate([-09.5,-14,10]) cube([6,7,2.2]); 
         }
             
     }
-    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);
+    translate([2.5,67.5,-50]) rotate([0,0,0]) cylinder(r=1.65, h=100, $fn=50);
+    translate([2.5,67.5,0.9]) cylinder(r1=2.1,r2=1.8, h=1, $fn=50);
+    translate([2.5,67.5,5]) rotate([0,0,0]) cylinder(r=3.1, h=8, $fn=50);
+    translate([0.5,22.5,0]) rotate([0,90,0]) cylinder(r=5.2, h=7.0, $fn=50);
 
     difference()
     {
@@ -278,23 +337,12 @@ difference()
         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([-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]);      
     
 
     translate([-40.8,7.5,0]) rotate([0,20,0]) cube([5,3.5,20]);
@@ -312,20 +360,27 @@ difference()
     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]);
     
-    
+    translate([0,-0.5,0]) left_belt_cut();
+    translate([0,0.5,0]) right_belt_cut();
     
     //version
     translate([-2,-8,1.5]) rotate([0,180,0]) linear_extrude(height = 0.6) 
-    { text("R1",font = "helvetica:style=Bold", size=4, center=true); }
+    { text("R2",font = "helvetica:style=Bold", size=4, center=true); }
     
     translate([-10,34,1.5]) rotate([0,180,0]) linear_extrude(height = 0.6) 
     { text("2.5",font = "helvetica:style=Bold", size=8, center=true); }
 }
 }
 
+
 x_carriage();
 
 
 
 
 
+
+
+
+
+