Behringer Deepmind Fader Knob

Disclaimer. I am not a designer, or engineer, or really know what I'm doing.

That being said, I really needed some fader knobs for a used Behringer Deepmind keyboard I bought and decided to try my hand at Fusion 360, then export to Meshmixer to Align and Make Solid then export an STL. For whatever reason, version 16 of my attempts prints on my Dremel Ideabuilder in PLA pretty well and fits the slider. So I'm happy.

I used 30% infill so the plastic has flexibility when squeezing onto the post.

You can paint the little ridge valley. I used acrylic white but on the original knobs they are silver? Metal? It's not a super accurate recreation but it works. :)