Everybody, thanks for all the help. After a whole lot of fiddling I got the thing to move, just to find out that it expects 3mm Filament, which is not sold at my local store. So faced with replacing the hotend and extruder I gave up and ordered a kp3s pro for less than 100€, maybe my first printer should be something that actually works.

now that is helpful, how did I miss those. I’m excited!

The board says “Melzi Ardentissimo” and does have a sd card slot, so I guess first step would be to find an old, blocky mini-usb cable, haven’t needed one of those in a hot minute, and backup the firmware.

And it looks like it can just print from the SD, but since there is no display or controls of any kind and the sdcard has multiple printfiles, its probably sime kind of magical filename…