scad/y-belt-holder-ts.scad

   1 // PRUSA iteration3
   2 // Y belt holder
   3 // GNU GPL v3
   4 // Josef Průša <iam@josefprusa.cz> and contributors
   5 // http://www.reprap.org/wiki/Prusa_Mendel
   6 // http://prusamendel.org
   7
   8 // Adapted for Wilson TS by mrice
   9
  10 belt_spacing = 2.0; // gt2=2mm
  11 tooth_w      = 1;
  12 min_h = 8; // belt starts this far from bottom of bed
  13 max_h = 22; // belt can be up to this far from bottom of bed
  14 nut_trap_w = 6;
  15
  16 module belt_holder_base(){
  17  translate([-33-8.5,0,0]) cube([33,15,max_h]); // this is the part the belt is cut into
  18  translate([-33-9.5,12,0]) cube([35,15,12]);
  19 }
  20
  21 module belt_holder_beltcut(){
  22  position_tweak=.5;
  23  // Belt slit
  24  translate([-66,-0.5+10,0]) cube([67,1,15]);
  25  // Smooth insert cutout
  26  translate([-66,-0.5+10,12]) rotate([45,0,0]) cube([67,15,15]);
  27  // Individual teeth
  28  for ( i = [0 : 23] ){
  29   translate([0-(i*belt_spacing)+position_tweak,-0.5+8,0]) cube([tooth_w,3,15]);
  30  }
  31  // Middle opening
  32  translate([-2-25,-1,0]) cube([4,11,15]);
  33 }
  34
  35 module belt_holder_holes(){
  36   translate([0,19,-2]) {
  37     translate([-14.5,0,0]) {
  38           cylinder(h=30, r=1.8, $fn=10);
  39           translate([0,0,10]) cylinder(h=30, r=nut_trap_w/2+.5, $fn=6);
  40     }
  41     translate([-35.5,0,0]) {
  42           cylinder(h=30, r=1.8, $fn=10);
  43           translate([0,0,10]) cylinder(h=30, r=nut_trap_w/2+.5, $fn=6);
  44     }
  45   }
  46 }
  47
  48 // Final part
  49 module belt_holder(){
  50  difference(){
  51   belt_holder_base();
  52   translate([0,0,min_h]) belt_holder_beltcut();
  53   belt_holder_holes();
  54  }
  55 }
  56
  57 belt_holder();