sprinkler-spike-receptacle.scad

   1 // -*- C -*-
   2
   3 main_height = 95;
   4
   5 spike_top_width = 21.04;
   6
   7 spike_botpos_height = 9.5;
   8 spike_botpos_width = 11.68;
   9
  10 topwall_width = 1.5;
  11
  12 module NegativePlan(){
  13   x4z =
  14     (spike_top_width - spike_botpos_width) /
  15     (main_height - spike_botpos_height);
  16
  17   x0 = (spike_botpos_width - x4z * spike_botpos_height)/2;
  18   x1 =  spike_top_width/2;
  19   z1 = main_height;
  20
  21   polygon([[ x0, -5],
  22            [ x0, 0],
  23            [ x1, z1],
  24            [-x1, z1],
  25            [-x0, 0],
  26            [-x0, -5]]);
  27 }
  28
  29 module PositivePlan(){
  30   w = spike_top_width + topwall_width*2;
  31   translate([ -w/2, 0 ])
  32     square([ w, main_height ]);
  33 }
  34
  35 PositivePlan();
  36 //NegativePlan();