Made another pulley and a video, trying to promote this awesome software. The model isn't anything special.
OS: Debian GNU/Linux bullseye/sid
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Build type: Release
Python version: 3.7.6
Qt version: 5.12.5
Coin version: 4.0.0
OCC version: 7.3.0
Locale: English/United States (en_US)
Watch the video if you like: https://youtu.be/3PHnI_0BPtQ
Files and more available here: https://www.youmagine.com/designs/improved-pulley
EDIT: Added a pic of the pulley
Thanks for this excellent piece of software!