light-bracket.scad

   1 remote_width=56.2;
   2 remote_height=124.7;
   3 remote_thick=6.8;
   4 mainhole_thick=remote_thick+1;
   5 hook_hook_thick=1.5;
   6 hook_stem_thick=1.5;
   7 hook_hook_len=1.5;
   8 base_thick=6;
   9 base_margin=4.0;
  10 base_width=remote_width-base_margin*2;
  11 base_height=remote_height-base_margin*2;
  12 base_edgewidth=4;
  13
  14 // origin is base of mainhole
  15
  16 module mainhole() {
  17         translate([ -remote_width/2, 0, 0 ])
  18         cube(center=false,
  19                 size=[ remote_width, remote_height, mainhole_thick ] );
  20 }
  21
  22 module hhook(extent) {
  23         difference() {
  24                 translate([ -hook_stem_thick, 0, -base_thick*2 ])
  25                         cube(center=false,
  26                                 size=[
  27                         hook_stem_thick+base_margin+base_edgewidth-1,
  28                         extent,
  29                         base_thick*2 + mainhole_thick + hook_hook_thick
  30                                         ]);
  31                 translate([hook_hook_len, -5, 0])
  32                          cube(center=false, size=[ 20, extent+10, 30 ]);
  33         }
  34 }
  35
  36 module hhookside(extent) {
  37         translate([ -remote_width/2, 0, 0 ])
  38                 hhook(extent);
  39 }
  40
  41 module hhookbot(extent) {
  42         rotate(a=90, v=[0,0,1]) hhook(extent);
  43 }
  44
  45 module hstuff() {
  46         translate([0,70,0]) hhookside(15);
  47         translate([0,10,0]) hhookside(15);
  48         translate([-10,0,0]) hhookbot(15);
  49 }
  50
  51 module base() {
  52         translate([ 0, base_height/2 + base_margin, -base_thick/2 ])
  53         difference() {
  54                 cube(center=true,
  55                         [ base_width, base_height, base_thick+10 ]);
  56                 cube(center=true,
  57                         [ base_width - base_edgewidth*2,
  58                           base_height - base_edgewidth*2,
  59                           base_thick + 15 ]);
  60
  61         }
  62 //      translate([-base_width/2, base_margin, -base_thick*2])
  63 //              cube(center=false, [base_width,base_height,base_thick+10]);
  64 }
  65
  66 screw_ys=[ 20, remote_height-30 ];
  67
  68 module stuff() {
  69         hstuff();
  70         mirror([1,0,0]) hstuff();
  71         base();
  72         for (y=screw_ys) translate([0, y, -20])
  73                 cylinder(r=7.5, h=21);
  74 }
  75
  76 module screwhole(holedia, csdia) {
  77         // screw goes along z axis downwards
  78         // origin is base of countersink
  79         // results are positive, so this should be subtracted
  80         translate([0,0,-100]) cylinder(h=200, r=holedia/2);
  81         cylinder(h=100, r=csdia/2);
  82 }
  83
  84 difference() {
  85         stuff();
  86         mainhole();
  87         for (y=screw_ys) translate([0, y, -base_thick+2]) screwhole(4,10);
  88         translate([0,0,-50 - base_thick])
  89                 cube(center=true,[300,300,100]); // print bed
  90 }