old stuff/bearing-guide.scad

   1 // This one is AWESOME design by Greg Frost!!
   2
   3 // PRUSA Mendel
   4 // Bearing guide
   5 // GNU GPL v3
   6 // Josef Průša
   7 // josefprusa@me.com
   8 // prusadjs.cz
   9 // http://www.reprap.org/wiki/Prusa_Mendel
  10 // http://github.com/prusajr/PrusaMendel
  11
  12
  13 /**
  14  * Helps to hold belt aligned on the bearing.
  15  * @id bearing-guide
  16  * @name Bearing guide
  17  * @category Printed
  18  */
  19
  20 single_layer_width=0.6;
  21 bearing_inner=22.3;
  22 thickness=1.7;
  23 height=7+thickness;
  24 wall_ascent=3;
  25 wall_descent=0.5;
  26
  27 module inner()
  28 {
  29         difference()
  30         {
  31                 cylinder(r=bearing_inner/2+single_layer_width,h=height);
  32                 translate([0,0,-1])
  33                 cylinder(r=bearing_inner/2,h=height+2);
  34         }
  35
  36         difference()
  37         {
  38                 cylinder(r=bearing_inner/2+wall_ascent,h=thickness);
  39                 translate([0,0,-1])
  40                 cylinder(r=bearing_inner/2-wall_descent,h=thickness+2);
  41         }
  42 }
  43
  44 module outer()
  45 {
  46         difference()
  47         {
  48                 cylinder(r=bearing_inner/2+2*single_layer_width+0.3,h=height);
  49                 translate([0,0,-1])
  50                 cylinder(r=bearing_inner/2+single_layer_width+0.3,h=height+2);
  51         }
  52
  53         difference()
  54         {
  55                 cylinder(r=bearing_inner/2+wall_ascent,h=thickness);
  56                 translate([0,0,-1])
  57                 cylinder(r=bearing_inner/2-wall_descent,h=thickness+2);
  58         }
  59 }
  60
  61 inner();
  62
  63 translate([29,0,0])
  64 outer();