adjustable-screw-rod

Parametric, 3D-printable adjustable screw rod. Turning the knob runs it along the threaded bar and carries a two-piece hinge that slides on the bar's flats in V-guides. The hinge's output pins, each with a blind hole, engage the Body tube, so the knob sets the distance between the Body and the pin hole at the bar's end. Everything is driven by variables: screw diameter, pitch and length, slide position, fit clearances, knob and pin sizes, an optional rounded bar end, and on/off switches for each part.