Our school's laser cutter (generic Chinese) has begun to decline to the point where it's barely able to cut cardboard let alone 1/4 and 1/8 ply which make up most of the student projects.
I noticed that when the laser fires, we are barely getting a reading on the amp meter. Is this a function of the tube going out or is the tube not getting the power it needs because the power supply is going out? Do power supplies degrade or is it an all or nothing situation.
Thanks in advance!