tube_d = 8.0 + 0.5;
tube2_d = 6.0 + 0.5;
-tube2_xoff = tube_d/2 + tube2_d/2 + 9;
+tube2_xoff = tube_d/2 + tube2_d/2 + 11;
clip_w = tube2_d + 2*wall;
slot_w = 5;
slot_angle = 180;
-wing_slot = 0.75*tube2_d;
-wing_top_wall = 3;
+wing_slot = 0.85*tube2_d;
+wing_top_wall = 3.5;
difference() {
hull() {