eps = 0.01;
infty = 200;

wall = 1.5;

tube_d = 8.0 + 0.5;

slot_w = 5;
slot_angle = 180;

wing_xoff = tube_d/2 + 7; // bottom of the slot
wing_slot_h = 2.5;
wing_slot_w = 4;

wing_wall = 3.0;

clip_w = 2*wing_wall + wing_slot_w;

difference() {
	hull() {
		// fuse cylinder
		cylinder(r = tube_d/2 + wall, h = clip_w);
		// wing clip
		translate([wing_xoff, -tube_d/2 -wall, 0])
		cube([wing_slot_h + wing_wall, tube_d + 2*wall, clip_w]);
	}

	// fuse tube
	translate([0, 0, -eps])
		cylinder(r = tube_d/2, h = clip_w + 2*eps);

	// fuse tube slot
	rotate([0, 0, slot_angle])
	translate([0, -slot_w/2, -eps])
		cube([tube_d, slot_w, clip_w + 2*eps]);

	// wing slot
	translate([wing_xoff, -tube_d/2-wall-eps, wing_wall])
		cube([wing_slot_h, tube_d + 2*wall + 2*eps, wing_slot_w]);
}