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