Please help a man in need.
So I recently replaced the tube in my K40 due to the original cracking after it froze in bad weather.
Tube is in, it works. Machine works. But there is now a problem with focus. I can’t seem to cut as cleanly as I used to be able to, there is significant charring. Engraving works without too many issues, It seems to loose intensity towards the front of the machine. I’ve adjusted screws, alignments, mirrors, angles… the position of the current head…
I had a 3D printed air-assist nozzle, and some how the beam now comes out of the lens at and angle and its now got holes in it…
So my question is, would a focus issue be solved with a new laser head with a larger lens in it? If I bought the light objects head, and the beam still came out at an angle, would that be destroyed too? Would it be more sensible to get an eBay special, air assist head that looks like its milled out of a chunk of aluminium? It looks like the focus can be adjusted on the head? I have very very limited budget on this project and just want to get the thing cutting cleanly, on all sides of the machine.
Thanks in advance of any advice that can be given.