ita-firewall.scad

   1 eps = 0.01;
   2 infty = 100;
   3
   4 body_w = 34;
   5 body_h = 30;
   6 foam_w = 3;
   7
   8 screw_d1 = 19;
   9 screw_d2 = 16;
  10 screw_hole = 3.5;
  11 base_wall = 1.5;
  12
  13 center_hole_d = 9;
  14
  15 insert_h = 10;
  16
  17 motor_angle_right = 4;
  18
  19 wall = 1;
  20
  21 difference() {
  22         translate([-body_w/2, -body_h/2, 0])
  23                 cube([body_w, body_h, base_wall]);
  24         // center hole
  25         translate([0, 0, -eps])
  26                 cylinder(r = center_hole_d/2, h = base_wall + 2*eps);
  27         // screw_d2 screw holes
  28         for (y = [-1, 1]) scale([1, y, 1])
  29                 translate([0, screw_d2/2, -eps]) {
  30                         cylinder(r = screw_hole/2, h = base_wall + 2*eps, $fn=6);
  31                         translate([0, 0, base_wall/2])
  32                                 cylinder(r1 = screw_hole/2,
  33                                         r2 = screw_hole/2 + base_wall/2,
  34                                         h = base_wall/2 + 2*eps, $fn = 6);
  35                 }
  36         // screw_d1 screw holes
  37         for (x = [-1, 1]) scale([x, 1, 1])
  38                 translate([screw_d1/2, 0, -eps]) {
  39                         cylinder(r = screw_hole/2, h = base_wall + 2*eps, $fn=6);
  40                         translate([0, 0, base_wall/2])
  41                                 cylinder(r1 = screw_hole/2,
  42                                         r2 = screw_hole/2 + base_wall/2,
  43                                         h = base_wall/2 + 2*eps, $fn = 6);
  44                 }
  45         // cable hole
  46         translate([-body_w/2+foam_w+wall, -body_h/2+foam_w+wall, -eps])
  47                 cube([8, 6, base_wall + 2*eps]);
  48 }
  49
  50 side_ext = 0.7;
  51
  52 difference() {
  53         hull() {
  54                 translate([-body_w/2+foam_w, -body_h/2+foam_w, base_wall-eps])
  55                         cube([body_w-2*foam_w, body_h-2*foam_w, eps]);
  56                 translate([-body_w/2+foam_w-side_ext*insert_h/2, -body_h/2+foam_w-side_ext*insert_h/2, insert_h + base_wall - eps])
  57                         cube([body_w-2*foam_w+side_ext*insert_h, body_h-2*foam_w+side_ext*insert_h, eps]);
  58         }
  59         hull() {
  60                 translate([-body_w/2+foam_w+wall, -body_h/2+foam_w+wall, base_wall-2*eps])
  61                         cube([body_w-2*foam_w-2*wall, body_h-2*foam_w-2*wall, eps]);
  62                 translate([-body_w/2+foam_w+wall-side_ext*insert_h/2, -body_h/2+foam_w+wall-side_ext*insert_h/2, insert_h + base_wall])
  63                         cube([body_w-2*foam_w+side_ext*insert_h-2*wall, body_h-2*foam_w+side_ext*insert_h-2*wall, eps]);
  64         }
  65 };
  66
  67 /*
  68 %difference() {
  69         rotate([0, motor_angle_right, 0]) difference() {
  70                 translate([-body_w/2+foam_w, -body_h/2+foam_w, -infty/2])
  71                         cube([body_w-2*foam_w, body_h-foam_w,
  72                                 insert_h+base_wall+infty/2]);
  73                 translate([-body_w/2+foam_w+wall, -body_h/2+foam_w+wall, -infty/2])
  74                         cube([body_w-2*foam_w-2*wall, body_h-foam_w-2*wall,
  75                                 insert_h+base_wall+infty/2+2*eps]);
  76         }
  77         translate([-infty/2, -infty/2, -infty+eps]) cube(infty);
  78 }
  79 */