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.*
Self-Latching Sprung Hutch Door Catch
A print-in-place spring catch for rabbit hutches, chicken coops and cabinet doors. It screws to the frame with four #6 wood screws or M4 screws (4.5 mm holes). The angled tongue gets pushed in as the door swings shut and springs back out to lock it, and a thumb tab pulls it back to open. The body is 67 x 42 x 10 mm, the tongue reaches 14 mm past the body, and every moving face has 0.5 mm clearance.
8 mm Shaft Spiral Return Spring
A printed spiral torsion spring that returns an 8 mm shaft to its home position — the hub slip-fits an 8 mm rod (8.3 mm bore) and locks with an M3 set screw in a collar that sits 6 mm above the coils, while a 3-turn, 2.6 mm x 12 mm band winds out to a bolt pad with two M4 clearance holes on 16 mm centres. Overall 82 x 61 x 18 mm; good for flap/lever/pedal returns and damper hinges where a wound steel spring is a pain to source.