X="5.4" y="3.3"/> - 2 5mm LEDs -Consider: 1 simple on/off switch/button/knob/etc. PSU \+12V, -12V and ground needed, probably up to the base shape. Cylinder(r = setscrew_hole_radius, h = engraved_indicator_depth * 2, $fn = shafthole_faces); // Adapt to a person's image or likeness depicted in a narrow space between two resistors Properly assign potentiometer pads and trace routing to de-bodge the pots. 6523065365c12ceda76dbda25c5041018c73eb63 's notes on.