@SHR3Deu maybe add some photos of it in various steps of usage? A lot of open source cad that’s very clever can be very tricky to understand if you’re not given the full thinking. I think I understand, but maybe a link to a similar thing like the voron z offset post or something?

@Carter_296732 Basically it is an ordinary endstop for the Z axis, but it is designed so that it is not necessary to move the whole grip when changing the printing support (printing plate, glass, FR4,...) or changing the nozzle type (with different length), but only by simply turning the screws against the spring to readjust its position. Furthermore, compared to Voron and other home printers, it does not use a mechanical switch but an inductive sensor (for example https://www.balluff.com/cs-cz/products/BES002W). This makes it precise, wear-free and dirt-insensitive. Tomorrow I will film and post here a video of a real deployment.