👉   Play freely and build endless fun at home with STEMFIE, the free 3D-printable educational toy   👈 


This function demonstrates the STEMFIE cam-locking connection. It uses a cam-locking pin and nut to join a brace to a beam. The fixed washer isolates rotational forces from the nut, thus preventing it from undoing the connection. Note that this cam-locking fastening is suitable for axially locking parts but allows for joint rotational freedom.



Quick-print sample

STEMFIE.org Quick print sample shoulder screw pin nut washers brace

The STEMFIE Quick-print Sample file is an easy way to test a few STEMFIE parts and fasteners. You can also check the STEMFIE Calibration File for more elaborate types of fasteners.

Browse parts

2023 12 06 STEMFIE online viewer

Check out the STEMFIE web app prototype to browse, view, and download parts (Github).