bike-stalk-led-mount.scad

   1 // -*- C -*-
   2
   3 include <commitid.scad>
   4
   5 stalk_dia = 6.4 + 0.25;
   6
   7 length = 50;
   8 width = 12;
   9
  10 strap_below = 2;
  11 strap_thick = 2;
  12 strap_width = 5;
  13 strap_above = 0.25;
  14
  15 arch_above = 2;
  16
  17 inside_gap = 0.5;
  18
  19 // calculated
  20
  21 height_base = stalk_dia/2 - inside_gap/2;
  22 above_height = height_base + arch_above;
  23 below_height = height_base + max(arch_above,
  24                                  strap_below + strap_thick + strap_above);
  25
  26 module StalkCutout(){
  27   translate([-length,0,0])
  28     rotate([0,90,0])
  29     cylinder(r= stalk_dia/2, h=length*2, $fn=40);
  30 }
  31
  32 module SomeBlockBase(height){
  33   translate([0,0, height/2 + inside_gap/2]) {
  34     difference(){
  35       cube([length, width, height], center=true);
  36       translate([-length/2, 0, height/2])
  37         Commitid_BestCount([length*.66, width/2]);
  38     }
  39   }
  40 }
  41
  42 module BlockAbove(){ ////toplevel
  43   difference(){
  44     SomeBlockBase(above_height);
  45     StalkCutout();
  46   }
  47 }
  48
  49 module BlockBelow(){ ////toplevel
  50   difference(){
  51     SomeBlockBase(below_height);
  52     StalkCutout();
  53     translate([0,0, inside_gap/2 + strap_above + stalk_dia/2 + strap_thick/2])
  54       cube([strap_width, width*2, strap_thick], center=true);
  55   }
  56 }
  57
  58 module BlockAbovePrint(){ ////toplevel
  59   rotate([180,0,0]) BlockAbove();
  60 }
  61
  62 module BlockBelowPrint(){ ////toplevel
  63   rotate([180,0,0]) BlockBelow();
  64 }
  65
  66 module Demo(){ ////toplevel
  67   BlockAbove();
  68   rotate([180,0,0]) BlockBelow();
  69 }
  70
  71 //Demo();