laptop-sound-cable-hooks.scad

   1 // -*- C -*-
   2
   3 include <utils.scad>
   4
   5 wall_th = 2;
   6 hook_th = 4;
   7 hook_hole = 4;
   8
   9 plug_l_d = [[ 27.78,
  10               10.62 + 0.50 ],
  11             [ 40.88,
  12               8.56 + 0.50 ],
  13             ];
  14
  15 plug_stem = [ 2.72 + 0.50,
  16               5.20 + 0.50 ];
  17
  18 palmrest_from_plug_z = 3.98;
  19 laptop_th = 16.31 + 0.75;
  20
  21 tongue_len = 50;
  22
  23 // calculated
  24
  25
  26 hook_th_plug_holder =
  27   plug_l_d[0][1]/2 + wall_th * sin(22.5);
  28
  29 hook_tongue_h = hook_hole + wall_th*2;
  30
  31 plug_hook_z_laptop_base = palmrest_from_plug_z - laptop_th;
  32 plug_hook_z_min = palmrest_from_plug_z - hook_tongue_h;
  33 plug_hook_x_min = -plug_l_d[len(plug_l_d)-1][0] - wall_th;
  34
  35 module PlugMainPlan() {
  36   for (l_d = plug_l_d) {
  37     l = l_d[0];
  38     d = l_d[1];
  39     rectfromto([ -l, -d/2 ],
  40                [  0, +d/2 ]);
  41   }
  42 }
  43
  44 module PlugHolderPlan() {
  45   intersection(){
  46     hull()
  47       offset(r= wall_th)
  48       PlugMainPlan();
  49
  50     rectfromto([-100,-100], [-0.1,+100]);
  51   }
  52 }
  53
  54 module PlugHookHookPlan(){
  55   polygon([ [ plug_hook_x_min, 0 ],
  56             [ plug_hook_x_min + -plug_hook_z_min, plug_hook_z_min ],
  57             [ tongue_len, plug_hook_z_min ],
  58             [ tongue_len, plug_hook_z_laptop_base ],
  59             [ 0, plug_hook_z_laptop_base ],
  60             [ 0, 0 ],
  61             ]);
  62 }
  63
  64 module RotateIntersect(n=6){
  65   intersection_for (r = [0:n-1]) {
  66     rotate([r/n * 360,0,0])
  67       linextr(-100,100) children(0);
  68   }
  69 }
  70
  71 module PlugHolder(){
  72   difference(){
  73     union(){
  74       RotateIntersect(8)
  75         PlugHolderPlan();
  76
  77       linextr_y_xz(-hook_th_plug_holder,
  78                    +hook_th_plug_holder)
  79         PlugHookHookPlan();
  80     }
  81
  82     RotateIntersect(6)
  83       PlugMainPlan();
  84
  85     linextr(-plug_stem[1]/2, 100)
  86       rectfromto([ -100, -plug_stem[0]/2 ],
  87                  [ +100, +plug_stem[0]/2 ]);
  88   }
  89 }
  90
  91 module DemoPlan() {
  92   translate([0,0,-5]) color("grey") PlugHolderPlan();
  93   PlugMainPlan();
  94 }
  95
  96 //DemoPlan();
  97 PlugHookHookPlan();
  98 //render() PlugHolder();