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 // calculated
  18
  19 bpp0 = [0,0];
  20 bpp1 = bpp0 + [ 0, mainwall_th - behind_recess ];
  21 lppA = bpp1 + [ seal_th, -recess_gap_end ];
  22 lppB = lppA + [ lid_edge_th, 0 ];
  23 bpp2 = [ lppB[0], bpp1[1] ];
  24 bpp3 = [ bpp2[0] + (bpp1 - bpp0)[1], bpp0[1] ];
  25 bpp4 = [ bpp3[0], bpp0[1] + mainwall_th ];
  26 lppC = bpp3 + [ 0, -recess_gap_end ];
  27
  28 s0 = battery_th/2;
  29 s1 = s0 + smallwall_th;
  30
  31 echo(
  32      bpp0,
  33      bpp1,
  34      bpp2,
  35      bpp3,
  36      bpp4,
  37      bpp5,
  38      bpp6,
  39      bpp7,
  40      bpp8
  41 );
  42
  43 echo(
  44      lppA,
  45      lppB,
  46      lppC,
  47      lppD,
  48      lppE
  49 );
  50
  51 bpp8 = bpp0 + [ -battery_len,0 ];
  52 bpp5 = [ bpp8[0] - smallwall_th, bpp4[0] ];
  53 bpp9 = [ bpp0[0], bpp0[1] - battery_wdth/2 - 1.0 ];
  54 bpp7 = [ bpp8[0], bpp9[1] ];
  55 bpp6 = [ bpp5[0], bpp9[1] ];
  56 lppE = [ lppA[0], bpp9[1] ];
  57 lppD = [ lppC[0], bpp9[1] ];
  58
  59 module BaseHalfPlan(){
  60   polygon([ bpp0,
  61             bpp1,
  62             bpp2,
  63             bpp3,
  64             bpp4,
  65             bpp5,
  66             bpp6,
  67             bpp7,
  68             bpp8
  69             ]);
  70 }
  71
  72 module SideHalfPlan(){
  73   polygon([ bpp5,
  74             bpp6,
  75             bpp9,
  76             bpp1
  77             ]);
  78 }
  79
  80 module LidHalfPlan(){
  81   polygon([ lppA,
  82             lppE,
  83             lppD,
  84             lppC,
  85             lppB
  86             ]);
  87 }
  88
  89 module ExtrudePlan(from,to){
  90   for (mj=[0,1]) {
  91     mirror([0,0,mj]) translate([0,0,from]){
  92       linear_extrude(height= to-from){
  93         for (mi=[0,1]) {
  94           mirror([0,mi])
  95             translate([0, battery_wdth/2]);
  96             children(0);
  97         }
  98       }
  99     }
 100   }
 101 }
 102
 103 module PlanDemo(){
 104   color("blue") BaseHalfPlan();
 105   color("red") LidHalfPlan();
 106   translate([0,0,-1]) color("lightblue") SideHalfPlan();
 107 }
 108
 109 module Base(){
 110   ExtrudePlan(0,s1) BaseHalfPlan();
 111   ExtrudePlan(s0,s1) SideHalfPlan();
 112 }
 113
 114 //PlanDemo();
 115
 116 Base();