skrpro-mount.scad

   1 eps = 0.01;
   2 infty = 200;
   3
   4 // SKR Pro
   5 // hole_dist = 87;
   6
   7 // SKR v1.4
   8 hole_dist = 76.3;
   9
  10 hole_d = 3;
  11 hole_sep = 5;
  12
  13 pcb_side_l = hole_dist+2*hole_sep;
  14 frame_l = 56;
  15 frame_w = 6.5;
  16 frame_wall = 2.5;
  17 frame_wall_front = 4;
  18
  19 body_w = 15;
  20 body_h = 15;
  21 pcb_h  = 12;
  22 pcb_bot = 8;
  23
  24 frame_open_x = 5;
  25 frame_open_y = 15;
  26
  27 nylon_d = 3 + 0.7;
  28 nylon_wall = 2;
  29
  30 module body() {
  31         // pcb-side arm
  32         cube([pcb_side_l, body_h, body_w]);
  33         // frame-side arm
  34         translate([-frame_w-frame_wall-frame_wall_front, 0, 0])
  35                 cube([body_h+frame_w+frame_wall, frame_l + 2*frame_wall, body_w]);
  36 }
  37
  38 difference() {
  39         body();
  40
  41         // pcb hole far
  42         translate([pcb_side_l - hole_sep, -eps, body_w-hole_sep])
  43                 rotate([-90, 0, 0])
  44                 cylinder(r = hole_d/2, h = body_h + 2*eps);
  45         // pcb hole near the corner
  46         translate([hole_sep, -eps, body_w-hole_sep])
  47                 rotate([-90, 0, 0])
  48                 cylinder(r = hole_d/2, h = body_h + 2*eps);
  49         // pcb
  50         translate([0, pcb_h, body_w-2*hole_sep])
  51                 cube([pcb_side_l + eps, frame_l, body_w]);
  52         // under the pcb
  53         translate([2*hole_sep, pcb_bot, body_w-2*hole_sep])
  54                 cube([pcb_side_l - 4*hole_sep, body_h, body_w]);
  55
  56         // frame
  57         translate([-frame_w-frame_wall_front, frame_wall, -eps])
  58                 cube([frame_w, frame_l, body_w + 2*eps]);
  59         // frame opening
  60         translate([-frame_w-frame_wall_front-frame_open_x, frame_wall+frame_open_y, -eps])
  61                 cube([frame_w, frame_l, body_w + 2*eps]);
  62         // frame mounting hole
  63         translate([-frame_wall_front-eps-body_h, frame_wall+hole_sep, body_w/2])
  64                 rotate([0, 90, 0])
  65                 rotate([0, 0, 90])
  66                 cylinder(r = hole_d/2, h = body_h + 2*eps, $fn = 6);
  67         // nylon string hole
  68         translate([0, nylon_d/2 + nylon_wall, nylon_d/2 + nylon_wall])
  69         rotate([0, 90, 0])
  70         rotate([0, 0, 90])
  71                 cylinder(r = nylon_d/2, h = pcb_side_l + eps, $fn = 6);
  72 }
  73