Any laser experts want to advise on a personal laser?

It is a smaller 60 watt tabletop laser from a chinese supplier. It uses a controller that works with lightburn,

We’ve had to replace the power supply and since then it has lost some of its cutting capacity. I would love it if someone who knows more about this than me could do a couple of consulting hours to advise me on if we should try replacing the tube or perhaps if its a power issue.

The tube is 3 years old with light use.

Hi:

I’m sorry I don’t have the tech knowledge you are seeking but I would like to chat with you about your problem and the difficulty in getting your laser assembled/up and running.

Is it a K40 type laser cutter? If so I can help.