todbot
I got these awesome rubber knobs from McMaster but alas they have 3/16" -16 threads. There's no way they would fit on a standard potentiometer. But Fusion 360 has a nice threads function and it contains a database of hundreds of types of screws. It was a pretty trivial effort to CAD up an adapter going from the knob's threads to the pot:
A few things to note about making threads in Fusion 360:
- Be sure to turn on "modeled" if you want the threads to be 3d-printable
- For "Thread Class", choose "A" or "B" class, never "C". This is how closely the threads mate, and a "C" class makes it too tight for 3d-printed parts.
The result turned out great on my newly acquired Monoprice Mini Select V2 3d printer using Monoprice PLA+. (Aside: the PLA+ seems to flex a lot more like ABS than PLA. It's really nice)
After I printed a few of them out, it was quick work to screw them on.
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I noticed the pattern around the edge looks like Braille.
It got me thinking, if I lost my vision I'd still want to interact with a world that was there even if I could no longer see it... :-)
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I know, right? It makes me think McMaster is sending secret codes to people. :)
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Hahaha an Easter Egg hidden in the Matrix, I love it ;-)
Its also very reminiscent of Mesopotamian Cuneiform, concepts were carved into cylinders as a positive moulding and rolled onto clay using an alphabet of a few hundred characters.
Have you considered 3D-printing in ceramics to make some of your designs? China clays are incredibly strong for their weight and translucent, by the time you were done with glaze they'd look like sea-shells ;-)
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