100 lines
3.5 KiB
OpenSCAD
Executable File
100 lines
3.5 KiB
OpenSCAD
Executable File
// PRUSA iteration3
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// X end prototype
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// GNU GPL v3
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// Josef Průša <iam@josefprusa.cz> and contributors
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// http://www.reprap.org/wiki/Prusa_Mendel
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// http://prusamendel.org
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use <bearing.scad>
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use <polyholes.scad>
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rod_distance = 45;
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module x_end_base(){
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// Main block
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height = 58;
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translate(v=[-15,-9,height/2]) cube(size = [17,39,height], center = true);
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// Bearing holder
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vertical_bearing_base();
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//Nut trap
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// Cylinder
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translate(v=[0,-17,0]) poly_cylinder(h = 8, r=12.5, $fn=25);
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// Hexagon
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//translate(v=[0,-17,0]) rotate([0,0,30]) cylinder(h = 8, r=8, $fn = 6);
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translate(v=[-6,-10.6,10]) rotate([0,0,48.2]) cube(size = [10,5,1], center = true);
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rotate([90,0,-15,]) translate ([-1, 8, 24])linear_extrude(height = 4) polygon( points=[[0,0],[0,12],[8,0]] ); //vzpera lozisek
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rotate([90,0,-50,]) translate ([9, 8, -0.6])linear_extrude(height = 4) polygon( points=[[0,0],[0,12],[8,0]] );
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}
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module reinforcement_selective_infill(){
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rotate([90,0,-15,]) translate ([-1.5, 8, 26])linear_extrude(height = 0.2) polygon( points=[[-2,0],[0,12],[8,0]] ); //vzpera lozisek
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rotate([90,0,-50,]) translate ([8.5, 8, 1.4])linear_extrude(height = 0.2) polygon( points=[[0,0],[0,12],[12,0]] ); //vzpera tela
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}
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//reinforcement_selective_infill();
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module x_end_holes(){
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vertical_bearing_holes();
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// Belt hole
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translate(v=[-1,0,0]){
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// Stress relief
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translate(v=[-5.5-10+1.5,-10-1,30]) cube(size = [18,1,28], center = true);
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difference(){
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translate(v=[-5.5-10+1.5,-10,30]) cube(size = [10,46,28], center = true);
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// Nice edges
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translate(v=[-5.5-10+1.5-5,-10,30+23]) rotate([0,20,0]) cube(size = [10,46,28], center = true);
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translate(v=[-5.5-10+1.5+5,-10,30+23]) rotate([0,-20,0]) cube(size = [10,46,28], center = true);
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translate(v=[-5.5-10+1.5,-10,30-23]) rotate([0,45,0]) cube(size = [10,46,28], center = true);
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translate(v=[-5.5-10+1.5,-10,30-23]) rotate([0,-45,0]) cube(size = [10,46,28], center = true);
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}
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}
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// Bottom pushfit rod
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translate(v=[-15,-41,6]) rotate(a=[-90,0,0]) pushfit_rod(7.8,50);
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// Top pushfit rod
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translate(v=[-15,-41.5,rod_distance+6]) rotate(a=[-90,0,0]) pushfit_rod(7.8,50);
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// TR Nut trap
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// Hole for the nut
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translate(v=[0,-17, -1]) poly_cylinder(h = 9.01, r = 7, $fn = 25);
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translate(v=[0,-17, -0.1]) cylinder(h = 0.5, r1 = 6.8+0.8,r2 = 7, $fn = 25);
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// Screw holes for TR nut
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translate(v=[0,-17, 0]) rotate([0, 0, -135]) translate([0, 9.5, -1]) cylinder(h = 10, r = 1.8, $fn=25);
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translate(v=[0,-17, 0]) rotate([0, 0, -135]) translate([0, -9.5, -1]) cylinder(h = 10, r = 1.8, $fn=25);
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// Nut traps for TR nut screws
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translate(v=[0,-17, 0]) rotate([0, 0, -135]) translate([0, 9.5, 6]) rotate([0, 0, 0])cylinder(h = 3, r = 3.45, $fn=6);
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translate(v=[0,-17, 0]) rotate([0, 0, -135]) translate([0, -9.5, 6]) rotate([0, 0, 30])cylinder(h = 3, r = 3.2, $fn=6);
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translate([-5.5,-17.2,6]) rotate([0,0,30]) cube([5,5,3]);
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translate([-0,-17.2,6]) rotate([0,0,60]) cube([5,10,3]);
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}
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// Final prototype
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module x_end_plain(){
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difference(){
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x_end_base();
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x_end_holes();
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}
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}
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x_end_plain();
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module pushfit_rod(diameter,length){
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poly_cylinder(h = length, r=diameter/2);
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difference(){
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translate(v=[0,-diameter/2.85,length/2]) rotate([0,0,45]) cube(size = [diameter/2,diameter/2,length], center = true);
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translate(v=[0,-diameter/4-diameter/2-0.4,length/2]) rotate([0,0,0]) cube(size = [diameter,diameter/2,length], center = true);
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}
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}
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