box_frame/y-belt-holder.scad

   1 // PRUSA iteration3
   2 // Y belt holder
   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 y_belt_holder(len=42) {
  12     y_delta = i_am_box == 0 ? -2.5 : xy_delta;
  13     ybelt_hole_to_side = 5;
  14     real_len = len + 2 * ybelt_hole_to_side;
  15     screw_hole_z_offset = i_am_box == 0 ? 0 : 4;
  16
  17     difference(){
  18         union(){
  19
  20             translate([-21 - belt_thickness, -7, 0]) cube_fillet([13 + y_delta, 14, len], vertical=[3,0,0,0], fn=8 );
  21             translate([-14, -5.5, len / 2]) cube_fillet([24 + 2 * y_delta, 3, len], vertical=[3, 0, 0, 0], center = true);
  22             translate([-24.5, 0, real_len / 2]) cube_fillet([11.5, 16, real_len], center = true, vertical = [1, 1, 1, 1], $fn=16);
  23             translate([-4.0 + y_delta, 0, len / 2]) cube_fillet([8, 14, len], center = true, vertical = [2,2,0,2]);
  24
  25         }
  26         translate([-4.5 + y_delta, 0, real_len / 2]) cube([10, 10, 10], center = true);
  27         translate([-11, 0, ybelt_hole_to_side + len]) {
  28             translate([screw_hole_z_offset,0,0]) rotate([0, -90, 0]) plate_screw(20);
  29             translate([8 + y_delta, 0, 0]) cube([10, 9, 9], center=true);
  30         }
  31         translate([-11, 0, ybelt_hole_to_side]) {
  32             translate([screw_hole_z_offset,0,0]) rotate([0, -90, 0]) plate_screw(20);
  33             translate([8 + y_delta, 0, 0]) cube([10, 9, 9], center=true);
  34         }
  35
  36         translate([-8 + y_delta, 0, 0]) mirror([1, 0, 0]) belt(real_len);
  37     }
  38 }
  39
  40
  41 y_belt_holder();