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.*
5 mm Shaft 20-Slot Optical Encoder Disc
A 60 mm slotted encoder wheel with 20 wedge windows at a 50/50 duty cycle, on a 5 mm set-screw hub. You get 20 counts per turn from a single slot-type photointerrupter, or 80 with two sensors in quadrature. The disc is 1.8 mm thick so it runs in the slot of common U-type optical sensors, and the windows span radius 22–28 mm. The hub takes a 5 mm motor shaft with a captured M3 nut and set screw, and two M3 clearance holes 30 mm apart let you bolt it to a printed wheel hub instead.
608 Bearing Anemometer Cup Rotor
A three-cup anemometer rotor that spins on two press-fit 608 skate bearings (22.05 mm through bore, stacked 14 mm apart) riding on an 8 mm mast, with a 126 mm swept diameter and 30 mm deep scoops. One arm carries a blind 6 x 3 mm disc-magnet pocket over a bridged roof so a hall or reed sensor below counts one pulse per revolution for a DIY weather station.
mmWave Sensor Corner Wedge Mount
A hollow 90° corner column that aims an mmWave presence sensor (Aqara FP2/FP1, LD2410, generic 24 GHz modules) diagonally across a room instead of into one wall. 56 x 56 mm footprint, 60 mm tall, with a 79 mm wide 45° front pad, a gusseted ledge 18 mm up for the sensor to rest on, two 4.5 mm strap slots, a 10 x 10 mm cable port into the hollow interior, and four M4 clearance holes through 6.3 mm ribbed bosses for drywall anchors. The corner vertex is relieved 3.5 mm so drywall corner bead or tape buildup doesn't rock the mount.