FT Scout: elevator reinforcement

Middle part of the elevator is too weak on Mini Scout,
so let's reinforce it with this small part.

diff --git a/ft-scout-elevator-reinforcement.scad b/ft-scout-elevator-reinforcement.scad
new file mode 100644 (file)
index 0000000..4741388
--- /dev/null
+++ b/ft-scout-elevator-reinforcement.scad
@@ -0,0 +1,42 @@
+infty = 100;
+eps = 0.01;
+
+center_l = 16;
+foam_w = 3;
+center_thick = 1.5;
+side_thick = 1.0;
+
+body_w = center_l + 2*9;
+front_l = 5;
+rear_l = 8;
+
+side_angle = 40; // smaller is narrower part (angle from the direction of flight)
+
+difference() {
+       // main body
+       translate([-foam_w/2-side_thick, -body_w/2, -rear_l-center_thick])      
+               cube([foam_w + 2*side_thick, body_w, rear_l + center_thick + front_l]);
+       // front slot
+       translate([-foam_w/2, -body_w/2-eps, 0])
+               cube([foam_w, body_w+2*eps, front_l + eps]);
+       // inner slanted sides
+       for(y = [-1, 1]) scale([1, y, 1])
+       translate([0, center_l/2, 0])
+       rotate([side_angle, 0, 0])
+       translate([-foam_w/2, 0, -infty/2])
+               cube([foam_w, infty, infty]);
+       // outer hole for rudder
+       intersection() {
+               hull() for (y = [-1:1]) scale([1, y, 1]) {
+                       translate([0, center_l/2, 0])
+                       rotate([side_angle, 0, 0])
+                       translate([-infty/2, -center_thick, -infty])
+                               cube([infty, eps, infty]);
+               }
+               translate([-infty/2, -infty/2, -infty-center_thick])
+                       cube(infty);
+       }
+       // debug
+       // translate([-infty, -infty/2, -infty/2])
+       //      cube(infty);
+}