I designed this knob based on a vintage variac that I have. I am using this for a capacitor leakage tester project. It has a 6mm shaft on the potentiometer and I made the hole 6.05mm which seems like a good snug fit. I included a small test knob if you want to test the fit, then you can scale in the slicer as needed. FYI, I was trying out the slicer fuzzy skin feature on the test knob.
I plan to add other vintage knob replicas in the future. I will post the complete project enclosure later also. If you need a certain shaft size let me know, it is easy to customize. I can also post the Fusion 360 file if you would like it.
This is one of my favourites from my collection. Hope you enjoy it :). I will put a link to the board below…
The author marked this model as their own original creation.