Hi all.
I am new to lasers and got a question about our new machine. We have had ours for just over a month. We were half way through a small engraving project when the laser stopped firing but the mirror and lens kept moving. I phoned the engineer and went through loads of check over the phone but was unable to find the problem. Long story short it ended up being the power supply which was replaced. Now it works but not as it was in the beginning. In the beginning we were getting good results but now with the same settings it is burning through materials and the finish is not as good . I spoke to a engineer who said it sounds like the potentiometers on the psu so We needed an engineer who did come out. But he was not happy to change the potentiometers as the settings as yet were not known.
Question to the more experienced users.. When we first had it if we wanted to put a box to put text in we layered it with 0% so it did not mark materials but now after the new psu it does make a mark .
So should 0% mean 0% or does everyone elses fire on 0%
He also did a test at different power settings to say that now 75% is full power and drops off after this setting .
Regards Neil