belt-slot-cut-jig.scad

   1 // -*- C -*-
   2
   3 crewpunch_slop = 0.3;
   4
   5 // from careful measurement
   6
   7 crewpunch_shape =
   8   [[  6, [0.6, 6.0], [1.6, 12.3] ],
   9    [  8, [1.1, 6.2], [1.9, 12.5] ],
  10    [ 10, [1.6, 6.5], [2.1, 12.8] ],
  11    [ 12, [1.8, 6.6], [2.3, 12.7] ],
  12    [ 14, [2.1, 6.8], [2.6, 13.0] ],
  13    [ 16, [2.4, 6.9], [2.7, 13.2] ]];
  14
  15 crewpunch_systematic_size_error = +0.36;
  16
  17 crewpunch_min_y = 4.7 - crewpunch_systematic_size_error;
  18
  19 // objects
  20
  21 module CrewPunch(){
  22   ourslop = crewpunch_slop - crewpunch_systematic_size_error;
  23   hull(){
  24     for(layer=crewpunch_shape){
  25       translate([0,0, layer[0]]){
  26         for(xind=[0,1]) //translate([xind?0:1,0,0])
  27           for(yind=[0,1]) //translate([0,yind?0.5:0,0])
  28             mirror([xind?1:0,0,0]) mirror([0,yind?0:1,0]){
  29               translate([-0.1,-0.1,-0.1])
  30                 cube([0.1 + layer[2][xind] + ourslop,
  31                       0.1 + layer[1][yind] + ourslop,
  32                       0.2]);
  33             }
  34       }
  35     }
  36   }
  37 }
  38
  39 CrewPunch();