About this 3D model

This is a sprocket I made for a large Solar Tracker I built. youtube.com/watch?v=Xj-fqcNuqIk&context=C3a3cbd0ADOEgsToPDskKnJlu7Qa_3ZtIJa_xQ_wmG It mounts on the 6mm shaft of a 10 turn pot. The pot is used for Azimuth position feedback.