Lost or broke a knob? Make a new one. Pick a grip style, match it to the shaft you already have, and print a drop in replacement for ovens, stoves, radios, faucets, drawers, jigs and machine clamps.

Grip styles:

• Round, knurled and fluted for everyday control knobs
• Star / lobed clamp knob for jigs and fixtures
• Hex, wing / thumb turn, and T-bar / lever for valves and taps

Shaft fits:

• Round with set (grub) screw
• D-shaft and double-D
• Square, hex, and splined / serrated
• Cross, or no hole at all for a pure handle

Print settings: 0.2 mm layers, 3 walls, 30 to 100% infill depending on torque. PETG or ABS for heat near stoves and ovens. Print the shaft hole slightly tight and ream to fit for a no wobble grip.