fischertechnik angular position encoder / potentiometer

A simple case for [Piher-15 Potentiometers](https://duckduckgo.com/?q=piher+pt+15+potentiometer&iax=images&ia=images) (order number PT15 N H05) for the [fischertechnik](https://www.fischertechnik.de/en) construction toy system.

Use the larger version if you find that the fischertechnik pegs of the smaller version don't print well.

For connecting fischertechnik clip on axles, you can use the small adapter, which will fix the clip on axle firmly both in an axial and radial direction. Be warned that the adapter is not very robust, so you might want to print a couple of them as a reserve.

The free arm adapter is needed for robot arm applications as shown in the video. It fixes the axle to the free arm opposite to the potentiometer.

I did some research into the potentiomters' accuracy, linearity etc. which you can find in [this thread](https://forum.ftcommunity.de/viewtopic.php?f=15&t=5566&p=40724#p40714).

Please consider leaving a "like" or posting your make as a token of a