Lego-Compatible Pulley Wheels

thingiverse

I've been searching various online resources for a pulley wheel specifically designed for Lego use in pulley/belt gear applications and couldn't find one that met my needs, so I decided to create this custom piece myself. It consists of two wheels with distinct specifications: One wheel has a diameter of 2 cm with an additional 2 mm of wall thickness on the sides to securely hold the pulley cord or belt in place. The second wheel is larger, measuring 4 cm in diameter, and also features a 2 mm thick wall for added stability. When working with this design, I strongly advise exercising caution when it comes to rotation and printer settings. A 2 mm overhang can cause issues if the wheel is laid flat, so please be mindful of your print settings. Additionally, the axle socket is quite precise, which may require some adjustment if you prefer a slightly larger tolerance. If that's the case, scaling the design by a reasonable factor won't harm anything.