9 body_w = center_l + 2*9;
13 side_angle = 40; // smaller is narrower part (angle from the direction of flight)
15 rotate([180, 0, 0]) // print it upside down
18 translate([-foam_w/2-side_thick, -body_w/2, -rear_l-center_thick])
19 cube([foam_w + 2*side_thick, body_w, rear_l + center_thick + front_l]);
21 translate([-foam_w/2, -body_w/2-eps, 0])
22 cube([foam_w, body_w+2*eps, front_l + eps]);
23 // inner slanted sides
24 for(y = [-1, 1]) scale([1, y, 1])
25 translate([0, center_l/2, 0])
26 rotate([side_angle, 0, 0])
27 translate([-foam_w/2, 0, -infty/2])
28 cube([foam_w, infty, infty]);
29 // outer hole for rudder
31 hull() for (y = [-1:1]) scale([1, y, 1]) {
32 translate([0, center_l/2, 0])
33 rotate([side_angle, 0, 0])
34 translate([-infty/2, -center_thick, -infty])
35 cube([infty, eps, infty]);
37 translate([-infty/2, -infty/2, -infty-center_thick])
41 // translate([-infty, -infty/2, -infty/2])