madstab-joiner.scad

   1 eps = 0.01;
   2 infty = 200;
   3
   4 wall = 1.5;
   5 thin_wall = 0.6;
   6
   7 stab_tube_d = 3.0 + 0.5;
   8 stab_tube_d2 = stab_tube_d + 1;
   9 stab_tube_l = 20;
  10
  11 fuse_tube_d = 8.0;
  12 fuse_tube_l = 12;
  13
  14 slot_w = 3;
  15
  16 base_d = 15;
  17 base_h = 0.6;
  18
  19 module body() {
  20         translate([fuse_tube_d/2 + stab_tube_d/2 + thin_wall, 0, 0]) {
  21                 cylinder(r = stab_tube_d/2 + wall, h = stab_tube_l);
  22                 // cylinder(r1 = base_d/2, r2 = stab_tube_d/2 + wall, h = base_h);
  23         }
  24         hull() {
  25                 translate([-fuse_tube_d/2-wall, -fuse_tube_l/2, 0])
  26                         cube([fuse_tube_d + 2*wall, fuse_tube_l, fuse_tube_d + 2*wall]);
  27                 translate([fuse_tube_d/2 + stab_tube_d/2 + thin_wall, 0, 0])
  28                         cylinder(r = stab_tube_d/2 + wall, h = fuse_tube_d + 2*wall);
  29         }
  30 }
  31
  32 difference() {
  33         body();
  34         translate([fuse_tube_d/2 + stab_tube_d/2 + thin_wall, 0, -eps])
  35                 cylinder(r = stab_tube_d/2, h = stab_tube_l + 2*eps);
  36         translate([fuse_tube_d/2 + stab_tube_d/2 + wall, 0, wall])
  37                 cylinder(r = stab_tube_d2/2, h = stab_tube_l - 2*wall);
  38         translate([0, fuse_tube_l/2+eps, fuse_tube_d/2+wall])
  39         rotate([90, 0, 0])
  40                 cylinder(r = fuse_tube_d/2, h = fuse_tube_l + 2*eps);
  41         translate([-slot_w/2, -fuse_tube_l/2-eps, fuse_tube_d/2+wall])
  42                 cube([slot_w, fuse_tube_l + 2*eps, fuse_tube_d/2+wall+eps]);
  43 }
  44
  45 // endpoint
  46
  47 translate([0, fuse_tube_l, 0])
  48 difference() {
  49         union() {
  50                 cylinder(r = stab_tube_d/2 + wall, h = wall);
  51                 translate([0, 0, wall-eps])
  52                         cylinder(r1 = stab_tube_d/2 + wall, r2 = stab_tube_d/2+thin_wall, h = wall);
  53         }
  54         translate([0, 0, -eps])
  55                 cylinder(r = stab_tube_d/2, h = 2*wall + 2*eps);
  56 }
  57