poster-tube-lid.scad

   1 // -*- C -*-
   2
   3 main_dia = 71.2 + 0.50;
   4 top_thick = 4;
   5
   6 main_cnr = 4.0;
   7
   8 rivet_posn = 6.0;
   9 rivet_thick = 1.67;
  10 rivet_width = 4.15 + 1.0;
  11 rivet_tall = 5.51 + 0.49;
  12
  13 over_rivet = 0.5;
  14
  15 bayo_interf = 0.75;
  16 bayo_behind = 3.5;
  17
  18 seal_thick = 0.1;
  19 seal_pocket = 2.0;
  20
  21 side_taper = 1.0;
  22
  23 // calculated
  24
  25 side_height = rivet_posn + bayo_behind;
  26 side_thick = rivet_tall + over_rivet;
  27
  28 top_z = top_thick + seal_thick;
  29
  30 $fs=0.5;
  31 $fa=5;
  32
  33 module MainProfile(){
  34   main_cnr_pos = [ side_thick, top_z ] - [1,1]*main_cnr;
  35   translate(main_cnr_pos){
  36     intersection(){
  37       difference(){
  38         circle(r = main_cnr);
  39         circle(r = main_cnr * 0.5);
  40       }
  41       square([10,10]);
  42     }
  43   }
  44   %polygon([[ -1,                    seal_thick      ],
  45            [ -1,                    top_z            ],
  46            [ main_cnr_pos[0],       top_z            ],
  47            [ side_thick,            main_cnr_pos[1]  ]]);
  48 }
  49
  50 MainProfile();