y-driverain.scad

   1 // PRUSA Mendel
   2 // Y drivetrain (except bed parts)
   3 // GNU GPL v3
   4 // Josef Prusa
   5 // http://www.reprap.org/wiki/Prusa_Mendel
   6 // http://github.com/prusajr/PrusaMendel
   7
   8 use <inc/functions.scad>
   9 include <configuration.scad>
  10
  11 module motorholder(thickness=10){
  12     difference(){
  13         union(){
  14             // Motor holding part
  15             translate(v = [29,-21+50,0])
  16             {
  17                 //#cube(size = [42,42,2], center=true);
  18                 difference(){
  19                     union(){
  20                         translate(v = [-21+4.5,0,5]) cube(size = [9,31,thickness], center=true);
  21                         nema17([0,1,1,0], thickness=thickness, shadow=true);
  22                         // Parts joining part
  23                         translate(v = [-29,-21,0]) cube(size = [14,30,thickness]);
  24                     }
  25                     // Motor mounting holes
  26                     translate([0,0,thickness]) mirror([0,0,1]) nema17([0,1,1,0], thickness=thickness, holes=true);
  27                 }
  28             }
  29
  30             // Front holding part
  31             translate(v = [0,10,0]) cylinder(h = thickness, r=8);
  32             translate(v = [0,20,5])cube(size = [16,20,thickness], center=true);
  33             translate(v = [0,30,0])cylinder(h = thickness, r=8);
  34         }
  35         translate(v = [0,10,-1]) cylinder(h = 12, r=4.5);
  36         translate(v = [0,30,-1])cylinder(h = 12, r=4.5);
  37     }
  38 }
  39
  40
  41 module idlermount(support=false){
  42     difference(){
  43         union(){
  44             translate(v = [8,8,0]) cylinder(h = 19, r=8);
  45             translate(v = [8,33,0]) cylinder(h = 19, r=8);
  46             translate(v = [0,7,0]) cube([16,27,19]);
  47         }
  48         translate(v = [8,8,-1]) cylinder(h = 120, r=idler_size_inner_r);
  49         translate(v = [8,33,-1])cylinder(h = 25, r=4.5);
  50
  51         translate(v = [8,8,4]) {
  52             %translate([0,0,1]) cylinder(h = 9, r=(idler_size/2)+2*single_wall_width);
  53             cylinder(h = 11, r=(idler_size/2)+8);
  54         }
  55     }
  56     if (support) {
  57         translate([0,-2,15]) cube([16,16,0.4]);
  58         translate([0,-2,0]) cube([16,1.3,15]);
  59     }
  60
  61 }
  62
  63 motorholder();
  64 translate([25,0,0])  idlermount(true);
  65