pin-hinge.scad

   1 // -*- C -*-
   2
   3 $hinge_pin_dia = 0.795 + 0.35;
   4 $hinge_main_dia = 4.0;
   5 $hinge_inter_gap = 0.50;
   6 $hinge_noncrit_gap = 1.0;
   7
   8 $fa = 3;
   9 $fs = 0.05;
  10
  11 module HingePinPlan(){
  12   circle(r= $hinge_pin_dia/2);
  13 }
  14
  15 module HingeProngPlan(behind){
  16   difference(){
  17     hull(){
  18       circle(r= $hinge_main_dia/2);
  19       polygon([[0,0],
  20                [-$hinge_main_dia/2, -behind],
  21                [+$hinge_main_dia/2, -behind]]);
  22     }
  23     HingePinPlan();
  24   }
  25 }
  26
  27 module HingeGapPlan() {
  28   circle(r = $hinge_main_dia/2 + $hinge_inter_gap);
  29 }
  30
  31 module PlanDemo(){
  32   HingeProngPlan(5);
  33   %HingeGapPlan();
  34 }
  35
  36 PlanDemo();