Voltmeter Holder for fischertechnik Cassette Bottom
A voltmeter holder for use with fischertechnik's cassette bottom:
https://ft-datenbank.de/ft-article/2372
The voltmeter used is available from Adafruit:
https://www.adafruit.com/product/575
The connector pins used are by Mill-Max and available from DigiKey:
https://www.digikey.com/product-detail/en/mill-max-manufacturing-corp/0390-0-15-01-08-27-10-0/ED5034-ND/158196
Any solid connector wire should work for running the negative and positive lines between pins.
The default measurements worked well on my printer; but, can be adjusted as needed for printer/filament variations.
For a bit more context around this design:
https://danmalec.com/2020/07/16/integrating-a-voltmeter-with-fischertechnik/