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.*
X Arm Root Motor Block
A root block for a robot arm. A NEMA 17 stepper bolts to the underside of the 6 mm plate on its 31 mm square M3 pattern, with the shaft coming up through a 22.4 mm opening for the motor's centring boss. Two slit clamp sockets hold the arm's 8 mm rods 40 mm apart. Overall size is about 96 x 56 x 28 mm, and each rod clamp uses an M3 screw and a hidden nut.
Y Motor End Block
The Y motor end block for the 'NEMA17 Cantilever Pen Plotter' kit. It anchors two 8 mm Y rods at 60 mm spacing in 25 mm deep pinch-clamp sockets, each tightened with an M3x16 screw and a captured M3 nut. It also holds the Y NEMA17 on a 5 mm vertical wall (31 mm M3 bolt square, 22.4 mm teardrop pilot hole) and sits on the desk as a 102 x 77 mm foot. The base is pocketed to save material, and the GT2 belt channel between the sockets stays clear.
Gripper Rod End Block
Split-clamp end block, printed ×2, for the 'NEMA17 Rack-and-Pinion Parallel Gripper' kit. It is 12 × 100 × 36 mm and holds both 8 mm rods (y ±40) in 8.3 mm bores. Each rod is locked by an M3x20 pinch screw and a captured M3 nut across a 1.5 mm slit. The block bolts to the frame plate through two M3 heat-set inserts, and its flat inner face is the open-jaw hard stop.