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H=RingThickness, $fn=50, center=true); if (Pointer2==1 cube([8, 3, KnobHeight], center=true); // Flat for D-shaped hole // D shaft shape for shaft cutout // set screw hole's center over the base panel's thickness to account for squishing // middle-bottom h rib h_wall(h=1.6, l=right_rib_x); // one more vertical to mount the circuit board sideways on HP = 5.07; // 5.07 for a single 2 mm² wires, reinforced.

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