fairphone-battery-case.scad

   1 // -*- C -*-
   2
   3 mainwall_th = 2.5;
   4 smallwall_th = 1.5;
   5
   6 seal_th = 0.3 + 0.6; // total gap for seal etc.
   7 behind_recess = 1.0;
   8
   9 recess_gap_end = 0.2;
  10
  11 lid_edge_th = 0.5;
  12
  13 battery_len = 66.55 + 0.75;
  14 battery_th = 6.55 + 0.75;
  15 battery_wdth = 44.38 + 0.75;
  16
  17 battery_base_indent = 0.94 + 0.50;
  18 battery_base_indent_fromside_outside = 4;
  19 battery_base_indent_fromside_inside = 10;
  20
  21 // for testing:
  22 battery_len = 3;
  23 battery_wdth = 15;
  24 battery_base_indent_fromside_inside = 6;
  25
  26 // calculated
  27
  28 bpp0 = [0,0];
  29 bpp1 = bpp0 + [ 0, mainwall_th - behind_recess ];
  30 lppA = bpp1 + [ seal_th, -recess_gap_end ];
  31 lppB = lppA + [ lid_edge_th, 0 ];
  32 bpp2 = [ lppB[0], bpp1[1] ];
  33 bpp3 = [ bpp2[0] + (bpp1 - bpp0)[1], bpp0[1] ];
  34 bpp4 = [ bpp3[0], bpp0[1] + mainwall_th ];
  35 lppC = bpp3 + [ 0, -recess_gap_end ];
  36
  37 s0 = battery_wdth/2;
  38 s1 = s0 + smallwall_th;
  39
  40 echo(
  41      bpp0,
  42      bpp1,
  43      bpp2,
  44      bpp3,
  45      bpp4,
  46      bpp5,
  47      bpp6,
  48      bpp7,
  49      bpp8
  50 );
  51
  52 echo(
  53      lppA,
  54      lppB,
  55      lppC,
  56      lppD,
  57      lppE
  58 );
  59
  60 bpp8 = bpp0 + [ -battery_len,0 ];
  61 bpp5 = [ bpp8[0] - smallwall_th, bpp4[1] ];
  62 bpp9 = [ bpp0[0], bpp0[1] - battery_th/2 - 1.0 ];
  63 bpp7 = [ bpp8[0], bpp9[1] ];
  64 bpp6 = [ bpp5[0], bpp9[1] ];
  65 lppE = [ lppA[0], bpp9[1] ];
  66 lppD = [ lppC[0], bpp9[1] ];
  67
  68 module BaseHalfPlan(indent=0){
  69   polygon([ bpp0,
  70             bpp1,
  71             bpp2,
  72             bpp3,
  73             bpp4,
  74             bpp5,
  75             bpp6,
  76             bpp7 + indent * [1,0],
  77             bpp8 + indent * [1,0]
  78             ]);
  79 }
  80
  81 module SideHalfPlan(){
  82   polygon([ bpp5,
  83             bpp6,
  84             bpp9,
  85             bpp1
  86             ]);
  87 }
  88
  89 module LidHalfPlan(){
  90   polygon([ lppA,
  91             lppE,
  92             lppD,
  93             lppC,
  94             lppB
  95             ]);
  96 }
  97
  98 module ExtrudePlan(from,to){
  99   rotate([0,-90,0])
 100   for (mj=[0,1]) {
 101     mirror([0,0,mj]) translate([0,0,from]){
 102       linear_extrude(height= to-from){
 103         for (mi=[0,1]) {
 104           mirror([0,mi])
 105             translate([0, battery_th/2])
 106             children(0);
 107         }
 108       }
 109     }
 110   }
 111 }
 112
 113 module PlanDemo(){ ////toplevel
 114   color("blue") BaseHalfPlan();
 115   color("red") LidHalfPlan();
 116   translate([0,0,-1]) color("lightblue") SideHalfPlan();
 117 }
 118
 119 module Base(){ ////toplevel
 120   ExtrudePlan(0,s1) BaseHalfPlan();
 121   ExtrudePlan(s0,s1) SideHalfPlan();
 122   ExtrudePlan(s0 - battery_base_indent_fromside_inside,
 123               s0 - battery_base_indent_fromside_outside
 124               ) SideHalfPlan(indent = battery_base_indent);
 125 }
 126
 127 module Lid(){ ////toplevel
 128   ExtrudePlan(0,s1) LidHalfPlan();
 129 }
 130
 131 module Demo(){ ////toplevel
 132   %Base();
 133   Lid();
 134 }
 135
 136 //PlanDemo();
 137 //Demo();
 138 //Base();