We have a laser cutter from Aliexpress . After some tests we pulled out the Nano board and replaced it with a Mini Gerbil . Until last week we were happy with the machine and the results. We recongnised a pretty “wedged” kerf but it did not bother us too much.
When we cut small part in the top left corner, everything is fine (our workpeice area is 500 by 400mm and the tube should provide 50W). But we struggeled with cutting in the center.
My first idea was to recalibrate the mirrors with this tutorial . That will happen tommorow.
Is it correct, that I should be able to recalibrate the mirrows so we get (almost) equal laser power over all the workpiece area?
Thanks for your support