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.*
8 mm Shaft Eccentric Sheave And Strap
A print-in-place eccentric sheave and strap that turns 8 mm shaft rotation into a 12 mm push-pull stroke. Use it to drive pumps, shaker tables, sieves or agitators. The 44 mm disc has an 8.3 mm bore set 6 mm off-centre, locked by an M3 heat-set set screw. It turns inside a captive 56 mm strap ring held by a 45° V-groove and bead. The strap's arm ends in an M4 clearance eye at 80 mm centres.
8 mm Shaft Three-Dog Jaw Clutch Half
This is a jaw clutch half with three square dogs, for an 8 mm shaft. Print two identical copies, flip one over and turn it 60° so the two sets of dogs mesh. You get positive drive in both directions, and sliding one half back disengages it, so you can free-spool a winch, a hand crank or a robot drive. Each half has an 8.3 mm slip-fit bore, an M3 grub screw locked by a captured nut, and a 52 mm flange with four 3.4 mm holes on a 40 mm circle for bolting on a gear, pulley or drum.
8 mm Shaft Cycloidal-Rise Plate Cam
This is a plate cam (rise-and-fall disc) for an 8 mm shaft or rod. Over each turn it lifts a 624 roller follower (13 mm OD) by 20 mm and lowers it again, using a cycloidal motion profile so the follower starts and stops without jerk. The profile is offset for the roller's 6.5 mm radius, so the follower moves exactly 26 to 46 mm from the shaft axis. The disc is 8 mm thick and the hub is 22 mm in diameter. An 8.3 mm slip-fit bore and a radial M3 heat-set insert pocket (4.0 mm) for a set screw lock it to the shaft, which suits automata, pumps, stamping rigs and indexing demos.
Module 1.5 Sector Gear 8 mm Hub
A 120° sector gear with 20 involute teeth (module 1.5, 20° pressure angle, 45 mm pitch radius, same as a full 60T gear) on an 8 mm bore hub. It locks to the shaft with an M3 set screw and a captive nut. Use it to drive a pan/tilt, elevation or gripper joint through a limited arc against any standard M1.5 spur pinion, so you don't need a bulky full gear. The teeth are thinned slightly to give FDM backlash, and there are two M3 holes for bolting on an arm or link.
Print-In-Place Silent Roller Freewheel
A roller one-way clutch that prints in one piece: a 54 mm × 12 mm outer ring with five 35° wedge ramps, holding five cone-ended 6 × 11 mm rollers around a 22 mm hub with an 8.3 mm bore for 8 mm rod, locked by an M3 set screw and captured nut. It runs silently with no pawl click. It has no springs, so the rollers take up about 15° before they lock. Five M3 heat-set bores (4.0 mm) let you bolt a pulley, winch drum or crank arm to the ring.
608 Two-Bolt Flange Bearing Block
A printed KFL08-style two-bolt flange bearing block. It press-fits a standard 608 bearing (8 x 22 x 7 mm) and bolts flat to a chassis plate or bulkhead with two M4 screws on 48 mm centres. The bearing supports the outboard end of an 8 mm drive shaft, axle or leadscrew. It is 63 x 30 x 13 mm, and a 15 mm lip under the bearing's outer race holds it in the pocket. 45° ribs brace the boss so radial shaft loads stay in the layer plane.
Gas Strut Sag Stop Clamp
A split collar that clamps onto the exposed 8 mm chrome shaft of a gas lift support so a tired hatch, hood, toolbox lid or camper door cannot sink shut — an 8.4 mm slip-fit bore, a 28 mm flange that bears flat on the strut's gland, and two M3 pinch bolts with captured M3 nuts (5.7 mm hex pockets). 36 mm tall overall, printed shaft-axis-vertical so the load is compression through the layers, not peel.
Flagged: automotive electrical. Not for safety-critical use without independent engineering review.
NEMA 17 Belt Reduction Bearing Plate
A 106 x 52 mm mounting plate that turns a NEMA 17 into a 3:1 belt reduction: the motor bolts to the top on the verified 31 mm square pattern with its shaft dropping through a 23 mm pilot clearance, and an 8 mm output shaft runs in two press-fit 608 bearings in a 34 mm tower at 58.5 mm centres — the right spacing for 20T to 60T GT2 pulleys on a 200 mm closed-loop belt. Gussets take the belt pull in the XY plane, and four M4 holes on a 92.5 x 37 mm rectangle bolt it to a chassis deck on 20 mm standoffs so the belt runs underneath.
GT2 60T Pulley 8 mm Bore
A 60-tooth GT2 timing pulley (2 mm pitch, 37.7 mm tooth OD, 41.7 mm flanges) with an 8.3 mm slip-fit bore for 8 mm shaft and a split-clamp hub tightened by a single M3 screw against a captured M3 nut. 22 mm tall with a 7 mm flanged belt land for 6 mm GT2 belt — the big reduction pulley you can't buy off-the-shelf in 8 mm bore.