servo-tube-holder.scad

   1 eps = 0.01;
   2 infty = 200;
   3
   4 wall = 1.5;
   5 thin_wall = 1.0;
   6
   7 fuse_tube_d = 8.0 + 0.5;
   8 clip_w = 6;
   9
  10 slot_w = 3;
  11
  12 servo_l = 23.0;
  13 servo_w = 12.5;
  14
  15 beam_w = fuse_tube_d/2 + wall;
  16
  17 cable_w = 2.0;
  18 cable_l = 5.0;
  19
  20 difference() {
  21         union() {
  22                 // servo frame
  23                 translate([-wall, -servo_l/2-clip_w, 0])
  24                         cube([servo_w + 2*wall, servo_l + 2*clip_w, wall]);
  25                 // main beam
  26                 translate([-beam_w, -servo_l/2-clip_w, 0])
  27                         cube([beam_w, servo_l + 2*clip_w, beam_w]);
  28                 // clips
  29                 for (y = [-1, 1]) scale([1, y, 1])
  30                 translate([-fuse_tube_d - 2*wall, servo_l/2, 0])
  31                         cube([fuse_tube_d + 2*wall, clip_w, fuse_tube_d + 2*wall]);
  32
  33         }
  34         // hole for servo
  35         translate([0, -servo_l/2, -eps])
  36                 cube([servo_w, servo_l, wall + 2*eps]);
  37         // fuse tube
  38         translate([-fuse_tube_d/2-wall, servo_l/2+clip_w+eps, fuse_tube_d/2+wall])
  39                         rotate([90, 0, 0])
  40                         cylinder(r = fuse_tube_d/2, h = servo_l +2*clip_w + 2*eps);
  41         // fuse tube slot
  42         translate([-fuse_tube_d/2-wall-slot_w/2, -servo_l/2-clip_w-eps, fuse_tube_d/2+wall])
  43                 cube([slot_w, servo_l + 2*clip_w + 2*eps, fuse_tube_d/2+wall+eps]);
  44         // cable hole
  45         for (y = [-1, 1]) scale ([1, y, 1])
  46                 translate([servo_w/2-cable_l/2, servo_l/2-eps, -eps])
  47                         cube([cable_l, cable_w + eps, wall + 2*eps]);
  48 }
  49