Heads up: many models on this page are AI-generated or uploaded untested. They may be misconfigured for the intended application — check the dimensions and tolerances, and verify or edit the model before printing or relying on it.*
Three-Screw Self-Centring BBQ Grill Knob
A universal replacement burner knob for gas grills where the original has cracked in the sun. It is 55 mm across and 34 mm tall, with a pointer fin on the front. It has a 9 mm stem bore and three M4 set screws at 120° in M4 heat-set inserts (5.5 mm bores), so it centres itself on round or D-flat valve stems from about 5 to 8 mm instead of needing one exact OEM fit. Holes in the skirt give a soldering iron and hex key access and let rain drain out. Print it in PETG or ASA for outdoor heat and UV.
Sink Pop-Up Lift Rod Set-Screw Knob
This knob replaces a lost or cracked finial on the lift rod of a bathroom sink pop-up drain. It is 24 mm across and 33 mm tall, with a fluted grip. A 6.4 mm blind bore takes any plain or threaded lift rod from 3 to 6 mm, and a side M3 self-tapping set screw (2.6 mm pilot) clamps the rod against the far wall of the bore, so you don't need to know the rod's original size.
Office Chair Tilt Tension Knob Retrofit
A 66 mm scalloped replacement for the cracked tilt-tension knob under an office chair. It is 28 mm tall with a 12.5 mm through-bore and three radial M4 set screws in brass heat-set inserts, so it clamps onto the old threaded stem or a stub of rod anywhere from about 8 to 12 mm. You don't need to know the chair's exact thread.
Through-Glass Shower Door Knob M5
A replacement shower door knob, 40 mm across and 35 mm tall. Print two and join them through the glass with a length of M5 threaded rod. Each knob has an M5 hex nut pocket (8.3 mm across flats), a 22 mm deep M5 clearance bore and a 25 mm × 2.2 mm recess on the glass face for a rubber washer. It fits 6–10 mm glass with any hole of 6 mm or larger, so you can replace a cracked plastic knob without tracking down the original part.
Chicken-Head Set-Screw Pot Knob
A classic chicken-head pointer knob for amp, guitar-pedal and bench-supply potentiometers. It is 34 mm long and 18 mm tall. The 6.5 mm bore fits both 6 mm and 1/4 in (6.35 mm) round, knurled or D shafts, and a radial M3 brass heat-set insert (4.0 mm bore) takes a set screw to clamp the shaft. There is an engraved indicator line on the 3 mm pointer skirt.
Ratcheting M5 Hold-Down Star Knob
A print-in-place ratcheting star knob for M5 hold-down bolts and studs: a 4.5 mm deep captive hex pocket takes an M5 nut (8 mm across flats) over a 5.5 mm through bore, and an 18-tooth ratchet lets the 69 mm three-lobe handle sweep back and forth in tight spaces instead of needing full turns. The knurled 44 mm top collar stands proud of the handle so you can grip the rotor directly to back the bolt out; overall 69 x 69 x 26 mm, prints as two captured pieces with 0.45 mm clearances.
Universal Pot Lid Knob Replacement
A drop-in replacement knob for a glass or metal pot lid whose original knob has cracked, melted or gone missing: Ø46 mm heat-shield flange, 33 mm tall six-flute grip, and a Ø5.5 x 12 mm bore for an M4 brass heat-set insert so the lid's own screw threads into metal. Cored out to about 18 cm³, prints flange-down with no supports — print it in PETG or ASA, not PLA, since lid knobs sit above a hot pan.
Set-Screw Appliance Control Knob
Replacement control knob for a washer, dryer, range or toaster oven whose original plastic shank has cracked and stopped gripping the timer shaft — 48 mm diameter, 22 mm deep, with a 6.8 mm bore that slips over 1/4 in (6.35 mm) and 6 mm round or D-shaped shafts. A radial M3 brass heat-set insert (4.0 mm bore) takes an M3 x 10 set screw that clamps onto the shaft flat, so one knob body covers a family of shafts instead of a $40-120 timer assembly; 14 finger flutes and a moulded pointer fin read the dial position.