500k Trimpot; tune to 1V out HALF Dot1 Dot2 Dot3 Dot4 Dot5 Dot6 Dot7 Dot8 Dot9 Dot10 Dot11 Dot12 Dot13 W1 L2 <-- CV In - diode to U2-3 Glide In - U1-13 (can get at from top when assembled Stop Switch - 10 - center_adjust; center_col = width_mm/2; vertical_space = height - rail_clearance - thickness*2 - 16.5/2; // 16.5 is the main module. It calls the submodules. Make_the_knob(); module make_the_knob() { difference() .