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/josefprusa/Prusa3
   8
   9 // ThingDoc entry
  10 /**
  11  * @id yBeltClamp
  12  * @name Y Belt Holder
  13  * @category Printed
  14  */
  15
  16 include <configuration.scad>
  17
  18 module y_belt_holder(len=40) {
  19     y_delta = i_am_box == 0 ? -2.5 : xy_delta;
  20     ybelt_hole_to_side = 5;
  21     real_len = len + 2 * ybelt_hole_to_side;
  22     screw_hole_z_offset = i_am_box == 0 ? 0 : 4;
  23
  24     difference(){
  25         union(){
  26
  27             translate([-21 - belt_thickness, -7, 0]) cube_fillet([13 + y_delta, 14, len], vertical=[3,0,0,0], fn=8 );
  28             translate([-14, -5.5, len / 2]) cube_fillet([24 + 2 * y_delta, 3, len], vertical=[3, 0, 0, 0], center = true);
  29             translate([-24.5, 0, real_len / 2]) cube_fillet([11.5, 16, real_len], center = true, vertical = [1, 1, 1, 1], $fn=16);
  30             translate([-4.0 + y_delta, 0, len / 2]) cube_fillet([8, 14, len], center = true, vertical = [2,2,0,2]);
  31
  32         }
  33         translate([-4.5 + y_delta, 0, real_len / 2]) cube([10, 10, 10], center = true);
  34         translate([-11, 0, ybelt_hole_to_side + len]) {
  35             translate([screw_hole_z_offset,0,0]) rotate([0, -90, 0]) plate_screw(20);
  36             translate([8 + y_delta, 0, 0]) cube([10, 9, 9], center=true);
  37         }
  38         translate([-11, 0, ybelt_hole_to_side]) {
  39             translate([screw_hole_z_offset,0,0]) rotate([0, -90, 0]) plate_screw(20);
  40             translate([8 + y_delta, 0, 0]) cube([10, 9, 9], center=true);
  41         }
  42
  43         translate([-8 + y_delta, 0, 0]) mirror([1, 0, 0]) belt(real_len);
  44     }
  45 }
  46
  47
  48 y_belt_holder();