You should restore the controller to it’s original configuration. It’s an easy fix, if you saved the original settings via the ‘save’ in the machine settings you can just ‘load’ it and ‘write’ it back to the controller… Good habit to get into with these machines.
Doubt this is an issue, but many have found everything looks good, but the wire is loose in the connector. I ‘gently’ tug on the wire that I think may be an issue to ensure they are connected… Just a thought.
A mA meter is really useful as it gives you an idea of how ‘hard’ you are driving the tube. They are generally just a 30mA meter on the cathode (ground) side of the tube.
When it lases, it lases at 100% drawing whatever the lps can deliver. There is no 50% lase, it’s on or off. I checked my lps and found that at 50% power I get a reading of 14mA, that translates to 28mA at 100%. My tube is rated at 21mA. I turned the lps down so that max power is 10.5mA. It also fits my Lightburn percentage of power.
I’d suggest a meter and an adjustment of the lps.
I suggest you check alignment again and especially the output beam of the tube at m1 (mirror 1).
The tube needs to resonate properly to create the beam. A light burn mark (not a hole) at m1 will show you how it’s resonating. This can be an early sign of tube failure…
This thread is similar and shows his m1 burn…
Good luck
