ft-scout-elevator-reinforcement.scad

   1 infty = 100;
   2 eps = 0.01;
   3
   4 center_l = 16;
   5 foam_w = 3;
   6 center_thick = 1.5;
   7 side_thick = 1.0;
   8
   9 body_w = center_l + 2*9;
  10 front_l = 5;
  11 rear_l = 8;
  12
  13 side_angle = 40; // smaller is narrower part (angle from the direction of flight)
  14
  15 difference() {
  16         // main body
  17         translate([-foam_w/2-side_thick, -body_w/2, -rear_l-center_thick])
  18                 cube([foam_w + 2*side_thick, body_w, rear_l + center_thick + front_l]);
  19         // front slot
  20         translate([-foam_w/2, -body_w/2-eps, 0])
  21                 cube([foam_w, body_w+2*eps, front_l + eps]);
  22         // inner slanted sides
  23         for(y = [-1, 1]) scale([1, y, 1])
  24         translate([0, center_l/2, 0])
  25         rotate([side_angle, 0, 0])
  26         translate([-foam_w/2, 0, -infty/2])
  27                 cube([foam_w, infty, infty]);
  28         // outer hole for rudder
  29         intersection() {
  30                 hull() for (y = [-1:1]) scale([1, y, 1]) {
  31                         translate([0, center_l/2, 0])
  32                         rotate([side_angle, 0, 0])
  33                         translate([-infty/2, -center_thick, -infty])
  34                                 cube([infty, eps, infty]);
  35                 }
  36                 translate([-infty/2, -infty/2, -infty-center_thick])
  37                         cube(infty);
  38         }
  39         // debug
  40         // translate([-infty, -infty/2, -infty/2])
  41         //      cube(infty);
  42 }