camera-spring-base.scad

   1 infty = 200;
   2 eps = 0.01;
   3
   4 wall = 1.5;
   5
   6 ziptie_w = 4;
   7 ziptie_h = 3;
   8
   9 x_sep = 36;
  10
  11 corner_l = 9;
  12 corner_w = 3;
  13
  14 hole1_yoff = 20;
  15 hole2_yoff = 10;
  16
  17 body_w = 2*(hole1_yoff+ziptie_h/2+corner_w);
  18 body_l = x_sep + 2*ziptie_w + 2*corner_w;
  19
  20 hook_w = 2;
  21 hook_l = 3;
  22 hook_hole = 2;
  23
  24 difference() {
  25         union() {
  26                 translate([-body_l/2, -body_w/2, 0])
  27                         cube([body_l, body_w, wall]);
  28
  29                 // support raised corners
  30                 for (x = [-1, 1]) for (y = [-1, 1]) scale([x, y, 1]) {
  31                         translate([body_l/2-corner_w, body_w/2-corner_l, 0])
  32                                 cube([corner_w, corner_l, 2*wall]);
  33                         translate([x_sep/2-corner_w, body_w/2-corner_l, 0])
  34                                 cube([corner_w, corner_l, 2*wall]);
  35                 }
  36
  37                 // rubber hooks
  38                 for (x = [-1, 1]) for (y = [-1, 1]) scale([x, y, 1]) {
  39                         translate([body_l/2-eps, body_w/2-hook_w, 0])
  40                                 cube([hook_w+hook_hole+eps, hook_w, wall]);
  41                         translate([body_l/2+hook_hole, body_w/2-hook_w-hook_l, 0])
  42                                 cube([hook_w, hook_l+hook_hole+2*hook_w, wall]);
  43                         translate([body_l/2+hook_hole-hook_l, body_w/2+hook_hole, 0])
  44                                 cube([hook_w+hook_l, hook_w, wall]);
  45                 }
  46         }
  47
  48         // center hole
  49         translate([-x_sep/2+corner_w, -body_w/2+corner_l, -eps])
  50                 cube([x_sep-2*corner_w, body_w-2*corner_l, 2*wall+2*eps]);
  51
  52         // ziptie angles
  53         for (x = [-1, 1]) for (y = [-1, 1]) for (y1 = [-hole2_yoff, hole1_yoff])
  54                 scale([x, y, 1]) translate([x_sep/2, y1, wall])
  55                         rotate([-40, 0, 0])
  56                         translate([0, -ziptie_h/2, -infty/2])
  57                         cube([ziptie_w, ziptie_h, infty]);
  58 }