Here's a baffling one. I have an 80 watt Gweike LC6090. I have had it for a number of years and replaced the power supply once along the way. In that instance I saw a gradual drop in power output over time.
This weekend however I had the laser up and running and it was performing just fine however the main door/top was out of alignment, the hinges had loosened over time and the door was scraping against the one inner side when I tried to shut it. I stopped to remove the door and re-align the hinges and then put the door back on. The door/lid now opens and closes just fine, problem solved.
However, when I start the machine back up, all of a sudden the power output has dropped by a half. I usually cut with it running at 20 milliamps however when I started to run a file that had been running just fine a half hour earlier the output is down to 10 milliamps. Running a few tests I can see that I can get the power up by doubling the power setting in the software but clearly I don't want to run it that way, something is still very wrong.
I am at a loss as to how these two events could be related, fixing the door and the power drop and yet the timing of the two is so related that I am struggling to pass it off as coincidence as well. I am open to any suggestions as to what may have happened.
Also, if anyone knows of any good tutorials on debugging power issues I'd be grateful for a link.
Cheers
Greg