I am converting a Geeetech i3 3D printer to a laser with a cheap “20W” laser module that came with no information.
An entry from a few years back gave me a great start as it had the same laser module. I now have the laser functioning somewhat, but posted a question wanting to know more about this module. As the original posting was in Oct '19 I think my question has been missed.
If anyone has information on this module I would appreciate it - e.g., 1. is the input voltage 12v or 5v on the larger 3-pin plug. 2.what does the little white trim-pot do?