Adapter for 3/16" knob to potentiometer

A project log for I LOVE LAMP

Explorations in creating lamps with flexible light emitters & curved surfaces

todbottodbot 06/13/2017 at 22:014 Comments

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:

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.


arinnugraha2311 wrote 06/14/2017 at 01:31 point


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Morning.Star wrote 06/13/2017 at 23:49 point

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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todbot wrote 06/14/2017 at 00:32 point

I know, right? It makes me think McMaster is sending secret codes to people. :)

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Morning.Star wrote 06/14/2017 at 06:11 point

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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