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.*
Cartwheel Flexure Pivot Joint
A single-piece compliant pivot: two 50 x 12 x 12 mm M3 mounting blocks joined by two crossing 1.2 mm leaf springs. It gives about ±10° of rotation with no backlash, no friction and no bearings. Each block has two 3.4 mm M3 clearance holes on 24 mm centres. The whole part is 50 x 60 x 12 mm and prints flat, so the blades bend in the layer plane rather than across the layer lines.
Idler-Side Swing Arm
This is the pinned side of the front yoke in the 'SG90 Sawtooth-Foot Inchworm Crawler' kit. It is a 5 mm thick, 94 mm long flat arm with an 8 mm radius boss and a 4.3 mm slip-fit bore that rides on the kit's 4 mm steel pin. Its pad edge is 20.1 mm below the pivot and has two 2.6 x 15 mm M3 self-tap pilots at x 64 and 76, where M3x16 screws come up through the front crossbeam.
Idler Pin Pivot Post
A gusseted upright post that bolts to a robot chassis plate with two M3 screws on 26 mm centres and holds a 4 mm steel pin in a press-fit cross bore 22 mm up. You can use it as the pivot for a belt idler arm, a tensioner lever or a small swing arm. The flange is 36 x 8.5 x 4 mm, the upright is 16 mm wide and 28 mm tall, and two 45° gussets carry the load in the print plane.
Tilt Axis Idler Pivot Post
This is the idler pivot post for the 'SG90 Animatronic Eye Mechanism' kit. The tilt paddle's left arm turns on an M3x16 SHCS, M3 washer and M3 nylock through the post's Ø3.4 hole at y -45, z 30, directly across from the SG90 tilt servo. The wall is 6 mm thick with a flat inner face and a rounded top, and two gussets brace it. The 4 mm foot (about 20 × 34 × 40 mm overall) has a 3.4 mm slot with end centres 20 mm apart. Two M3x10 SHCS and nuts go through deck holes (-60, -40) and (-60, -50), and the slot lets you slide the post ±5 mm to line it up with the servo shaft. Fit the foot screws without washers so the heads clear the gussets.
NEMA 17 Trunnion Pivot Actuator Mount
A trunnion collar that bolts to the face of a NEMA 17 leadscrew actuator (31 mm M3 pattern, 22 mm pilot) so the whole actuator can rock as it extends, which you need for hatches, flaps and strut-style lifts. Each side ear takes two 608 bearings (22.05 mm press pockets), and an 8 mm rod or bolt goes through them into your fork. The part is 112 x 30 x 46 mm and prints flat with no supports.
Dual 608 Bearing Yaw Joint Pedestal
A pedestal that preloads two 608 bearings (8 x 22 x 7 mm) 36.6 mm apart on a common vertical axis, giving a printed robot-arm shoulder/waist joint the moment stiffness people normally pay $100+ for a cross-roller bearing to get. 44 x 44 mm gusseted flange with four M4 clearance holes on a 32 mm square, 44 mm tall, 19 mm centre bore for an 8 mm shaft plus collars, and a slotted pinch collar with an M3 bolt and captured nut that takes the slop out of the upper press fit.