Project & Support Moved

This project and it's continued support have moved to Josef Prusa's https://www.printables.com/. I will no longer be updating items here, and may not respond to comments or questions.

Please visit the link below for the latest version:
https://www.printables.com/model/157136-attic-fan-knob

Summary

Simple replacement knob for a attic or whole house fan timer switch.

Knob dimensions, including attachment post size and shape, can be easily modified by editing the first sketch in the Fusion 360 file.