I got myself the mini version of this keyboard but it's not in the language I want, so I started building some custom key caps.

You'll only find the "blank" version of the keycaps for now but I'm working on versions with very thin letters that let the backlight through. In the screenshots you'll see "Ö" letter as work in progress. Feel free to remix your own!

The caps I've designed are tested on the mini version of the keyboard below but I expect they will work on the full sized version as well.

https://www.logitech.com/en-eu/shop/p/mx-mechanical

I've printed the blank key caps with the default 0.4mm nozzle, no supports, 0.08mm layer height and they came out pretty good using eSUN PLA+ on a P1P. Refer to the picture for how the model is oriented for print.

For the 'work in progress' version with letters I have to switch to a 0.2mm nozzle and 0.06mm layer height to get the results I want, but that is a story for the future.