John J Wang
10-28-2019, 6:58 PM
We have an older ULS-M300 35Watt laser engraver. The original tube lasted almost 8 years, but the replacement tube abruptly stopped working after 2~3 year of very limited usage. We did contacted ULS and was told we needed the tube replaced. Given how little usage the replaced tube saw before it stopped working as a backup laser engraver, we mothballed it instead of replacing the tube again.
Anyway, having found a 3rd party tube service company on this forum that has good reviews, we want to send the old tube in for recharge. However, we want to make sure the problem is with the laser tube.
The tube failure on the M-300 replace laser was very abrupt. Instead of a gradual decline in power output, it just stopped working. Everything else works. The door/safety interlocks works, the red dot laser works. When set to alignment mode, the green panel led turns off, the buzzer turns on, but the laser does not fire. Even at 100% power, 25Khz setting, the scotch tape in the laser path shows no sign of melting.
Before we send the tube in to be recharged, is there any way for us to check to make sure the problem is indeed with the tube and not something else.
We have basic electronic troubleshooting skills with mutli-meter and oscilloscope. We have also replaced a Z axis driver board on our PLS before.
thanks,
John
Anyway, having found a 3rd party tube service company on this forum that has good reviews, we want to send the old tube in for recharge. However, we want to make sure the problem is with the laser tube.
The tube failure on the M-300 replace laser was very abrupt. Instead of a gradual decline in power output, it just stopped working. Everything else works. The door/safety interlocks works, the red dot laser works. When set to alignment mode, the green panel led turns off, the buzzer turns on, but the laser does not fire. Even at 100% power, 25Khz setting, the scotch tape in the laser path shows no sign of melting.
Before we send the tube in to be recharged, is there any way for us to check to make sure the problem is indeed with the tube and not something else.
We have basic electronic troubleshooting skills with mutli-meter and oscilloscope. We have also replaced a Z axis driver board on our PLS before.
thanks,
John