terarium-glass-clip.scad

   1 eps = 0.01;
   2 infty = 100;
   3
   4 // TODO: subtract 2*spring_w - something from these:
   5 v_thick = 4 + 0.3; // thickness of the vertical glass
   6 h_thick = 2 + 0.3; // thickness of the horizontal glass
   7
   8 o_wall = 2.5;
   9 i_wall = 1.5;
  10 body = 14;
  11
  12 spring_r = 4;
  13 spring_w = 0.7;
  14 spring_off = 2.5;
  15
  16 module spring() {
  17         intersection() {
  18                 translate([-eps, -infty/2, -infty/2])
  19                         cube(infty);
  20
  21                 translate([-spring_r + spring_w, 0, 0])
  22                         cylinder(r = spring_r, h = body, $fn = 24);
  23         }
  24 }
  25
  26 module body() {
  27         difference() {
  28                 cube([2*o_wall+i_wall+v_thick+h_thick, body, body]);
  29                 // vertical glass
  30                 translate([o_wall, body-o_wall-infty, -infty/2])
  31                         cube([v_thick, infty, infty]);
  32                 // horizontal glass
  33                 translate([o_wall+v_thick+i_wall, -infty/2, body-o_wall-infty])
  34                         cube([h_thick, infty, infty]);
  35         }
  36         translate([o_wall, spring_off, 0])
  37                 rotate([0,0,0]) spring();
  38         translate([o_wall+v_thick, spring_off, 0])
  39                 rotate([0,0,180]) spring();
  40         translate([o_wall+v_thick+i_wall, 0, spring_off])
  41                 rotate([-90,0,0]) spring();
  42         translate([o_wall+v_thick+i_wall+h_thick, 0, spring_off])
  43                 rotate([-90,180,0]) spring();
  44 }
  45
  46 translate([0, 0, body]) scale([-1,1,1]) rotate([180, 0, 0])
  47         body();
  48