firefly-q6-hood.scad

   1 eps = 0.01;
   2
   3 // Q6 lens dimensions
   4 yellow_ring_d = 19.5 + 0.5;
   5 yellow_ring_h = 3.5;
   6 lens_d = 17;
   7
   8 view_angle = 95;
   9
  10 hood_h = 20;
  11 hood_top_d = 25;
  12
  13 lens_d = 8;
  14 wall = 1.5;
  15 rectangle_h = 120;
  16 rectangle_w2h = 1.777;
  17
  18 rect_d2 = rectangle_h * tan(view_angle/2);
  19 rect_x = 2*rect_d2/sqrt(1+rectangle_w2h*rectangle_w2h);
  20 rect_y = rectangle_w2h * rect_x;
  21 $fn = 128;
  22
  23 module view_field() {
  24         minkowski() {
  25         hull() {
  26                 cube(eps);
  27                 translate([-rect_x/2, -rect_y/2, rectangle_h])
  28                         cube([rect_x, rect_y, eps]);
  29         }
  30         cylinder(r=lens_d/2, h = eps);
  31         }
  32 }
  33
  34
  35 hood_r = 30;
  36 hood_h = 60;
  37
  38 hood_y = 80;
  39 hood_x = 50;
  40
  41 difference() {
  42 /*
  43         union() {
  44                 translate([hood_x/2-wall, -hood_y/2, 0])
  45                         cube([wall, hood_y, hood_h]);
  46                 for (y = [-1,1]) scale([1, y, 1])
  47                         translate([-hood_x/2, hood_y/2-wall, 0])
  48                         cube([hood_x, wall, hood_h]);
  49         }
  50 */
  51         scale([1, 1.5, 1])
  52         cylinder(r = hood_r, h = hood_h);
  53         scale([1, 1.5, 1])
  54         translate([0, 0, -eps])
  55                 cylinder(r = hood_r-wall, h = hood_h+2*eps);
  56
  57         view_field();
  58 }
  59
  60 difference() {
  61         cylinder(r = yellow_ring_d/2+wall, h = yellow_ring_h);
  62         translate([0, 0, -eps])
  63                 cylinder(r = yellow_ring_d/2, h = yellow_ring_h+2*eps);
  64 }
  65
  66 /*
  67 difference() {
  68         // body
  69         hull() {
  70                 cylinder(r = yellow_ring_d/2 + wall, h = yellow_ring_h);
  71                 translate([0, 0, hood_h-eps])
  72                         cylinder(r = hood_top_d/2 + wall, h = eps);
  73         }
  74         translate([0, 0, -eps])
  75                 cylinder(r = yellow_ring_d/2, h = yellow_ring_h+2*eps);
  76         // walls of the cone
  77         hull() {
  78                 translate([0, 0, yellow_ring_h])
  79                         cylinder(r = yellow_ring_d/2, h = eps);
  80                 translate([0, 0, hood_h])
  81                         cylinder(r = hood_top_d/2, h = eps);
  82         }
  83         hull() {
  84                 cylinder(r = lens_d/2, h = eps);
  85                 // translate([0, 0, rectangle_h])
  86                 //      cylinder(r = rect_d2 - 5, h = eps);
  87                 translate([-rect_x/2, -rect_y/2, rectangle_h])
  88                         cube([rect_x, rect_y, eps]);
  89         }
  90
  91 }
  92
  93 */