topeak-seatstay-lock.scad

   1 // -*- C -*-
   2
   3 pump_dia = 27;
   4 seatstay_mindia = 14;
   5 seatstay_maxdia = 19;
   6 pump_seatstay_gap = 12.3;
   7 pump_seatstay_delta = 0.1;
   8 holes_rotation = 7;
   9
  10 module Holes(){
  11   translate([0, -pump_dia/2]);
  12   rotate(-holes_rotation){
  13     translate([-(pump_seatstay_gap/2 + pump_dia/2),
  14                0])
  15       circle(r=pump_dia/2);
  16     translate([+(pump_seatstay_gap/2 + seatstay_mindia/2),
  17                pump_dia/2 -seatstay_maxdia/2 -pump_seatstay_delta]) {
  18       hull(){
  19         for (ud=[-1,1])
  20           translate([0, ud * (seatstay_maxdia-seatstay_mindia)/2])
  21             circle(r=seatstay_mindia/2);
  22       }
  23     }
  24   }
  25 }
  26
  27 Holes();