Broan Nutone Plastic Threaded Fan Grille Knob

thingiverse

The original knob broke and the grill and screen fell down. I made a rough design to replace the broken piece. I had to use a little bit of support due to the bevel on the top. This is definitely a WIP and could be made to look a bit better. However, it solved the problem and no one will likely notice. I am sure a better material like PETG or ABS would work better, but this is not exposed to too much heat.