y-drivetrain.scad

   1 // PRUSA iteration3
   2 // Y drivetrain (idler and stepper holders)
   3 // GNU GPL v3
   4 // Josef Průša <josefprusa@me.com>
   5 // Václav 'ax' Hůla <axtheb@gmail.com>
   6 // http://www.reprap.org/wiki/Prusa_Mendel
   7 // http://github.com/prusajr/PrusaMendel
   8
   9 include <configuration.scad>
  10
  11 module motorholder(thickness=10){
  12     difference(){
  13         union(){
  14             // Motor holding part
  15             translate([29,-21+50,0])
  16             {
  17                 //#cube([42,42,2], center=true);
  18                 difference(){
  19                     union(){
  20                         translate([-21+4.5,0,5]) cube([9,31,thickness], center=true);
  21                         nema17([0,1,1,0], thickness=thickness, shadow=false);
  22                         mirror([0,0,1])translate([0,0,-10])nema17([0,1,1,0], thickness=thickness, shadow=7);
  23                         // Parts joining part
  24                         translate([-29,-21,0]) cube([14,30,thickness]);
  25                     }
  26                     // Motor mounting holes
  27                     translate([0,0,thickness]) mirror([0,0,1]) nema17([0,1,1,0], thickness=thickness, holes=true);
  28                 }
  29             }
  30
  31             // Front holding part
  32             translate([0,10,0]) cylinder(h = thickness, r=8);
  33             translate([0,20,5]) cube([16,20,thickness], center=true);
  34             translate([0,30,0]) cylinder(h = thickness, r=8);
  35         }
  36         translate([0,10,-1]) cylinder(h = 12, r=4.5);
  37         translate([0,30,-1]) cylinder(h = 12, r=4.5);
  38     }
  39 }
  40
  41
  42 module idlermount(support=false){
  43     difference(){
  44         union(){
  45             //translate([8,8,0]) cylinder(h = 19, r=8);
  46             //translate([8,33,0]) cylinder(h = 19, r=8);
  47             translate([0,7-5,0]) cube([16,27+12,10+idler_width]);
  48         }
  49         translate([8,8,-1]) cylinder(h = 120, r=idler_size_inner_r);
  50         translate([8,33,-1]) cylinder(h = 25, r=4.5);
  51
  52         translate([8,8,4]) {
  53             %translate([0,0,1]) cylinder(h = idler_width, r=(idler_size/2)+2*single_wall_width);
  54             cylinder(h = idler_width+2, r=(idler_size/2)+8);
  55         }
  56     }
  57     if (support) {
  58         translate([0,-2,15]) cube([16,16,0.4]);
  59         translate([0,-2,0]) cube([16,1.3,15]);
  60     }
  61
  62 }
  63
  64 motorholder();
  65 translate([25,0,10]) rotate([0,90,0]) idlermount();
  66