Laser Engraver Forum

Hi all, I have a K40 and replaced the board with a MINI GERBIL and running Lightburn software. The tube is brand new and connected with a HV connection. I have aligned all the mirrors and got it working pretty well (needs a few last adjustments) but when engraving I observed a noise which is kind of...

Hey all, Im new here :) I bought a K40 off eBay and was told it was virtually new. Get it home, evidently is far from that. Anyways - it also turns out it's a K40 'MINI' with only enough space for a 600mm tube (ie 30W) can I simply make room for the 700mm tube and hook it up to the standard power su...