eps = 0.01;
infty = 200;

wall = 1.5;

tube_d = 8.0 + 0.5;
tube2_d = 6.0 + 0.5;
tube2_xoff = tube_d/2 + tube2_d/2 + 11;

clip_w = tube2_d + 2*wall;

slot_w = 5;
slot_angle = 180;

wing_slot = 0.85*tube2_d;
wing_top_wall = 3.5;

difference() {
	hull() {
		// fuse cylinder
		cylinder(r = tube_d/2 + wall, h = clip_w);
		// wing cylinder
		translate([tube2_xoff - tube2_d/2-wall, -tube_d/2 -wall, 0])
		cube([tube2_d + wall + wing_top_wall, tube_d + 2*wall, tube2_d + 2*wall]);
	}

	// 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 tube
	translate([tube2_xoff, -tube_d/2-wall-eps, tube2_d/2 + wall])
	rotate([-90, 0, 0])
		cylinder(r = tube2_d/2, h = tube_d + 2*wall + 2*eps);

	// wing tube slot
	translate([tube2_xoff - wing_slot/2, -tube_d/2-wall-eps, tube2_d/2 + wall])
		cube([wing_slot, tube_d + 2*wall + 2*eps, tube2_d/2 + wall + eps]);
}