My K40 laser (XM-4060) has stopped firing when I run a job. It moves like its cutting but doesn’t fire.
It Does fire when I push the panel test button and it Does fire when I push the PSU test button.
The PSU message states “L” which says L= No Laser Signal
I have replace the controller board from a B-1 to a M2nano. No change still the same error. The machine has worked perfect the past couple years. It was died by the laser getting dimmer and dimmer and dimmer until no more light was being produced. It has a brand new bulb in it. And when I push test it fires up and glows normally. It was used 3 times before it did this and I dont think its the bulb since it can still cut with test.
Again… All test buttons make it fire at full power and I can just hold the button down and run a job and it will cut out the plywood…
Can someone please shoot me thoughts on what to replace to try. It would be greatly apprecaited… I have been dead in the water for 3 weeks and my company has come to a halt on production. Wondering if its a bad power supply??? (is that possible since it still fires?)
I have done the following…
The machine homes and drives and works normal. Just wont fire when cutting a job sent by the laptop.
It has a Water Flow Switch. I have unplugged everything in P and GRND and made a cable that goes in P and the other end in GRND. Still says L and wont cut during a job.
I have confirmed voltage in the controller board cable does have 5v and 36v and the ground in the cable works
The fan on the PSU works, the PSU red light turns on when either test button is fired and it does change to “A” Meaning Normal when either test button is fired.
I have tried a new USB cable and tried a different port on the Laptop. Still “L”
I have ground off the paint where the Ground goes to the screw in the back of the laser cutter. And it appears all have a ground.
I have unscrewed all cables out of the PSU and plugged them back in and tightened them down
I put a new laser bulb in a month ago and have made a couple hours worth of cuts with it. It does fire and light up when testing. Again it does cut out my 1/4 plywood if I hold test down the entire time. There is NO sparking or anything weird with the bulb and no cracks. And no pinches in the water cooloer hoses.
I have blown out all components with the air compressor. Again no change
I have tried another outlet. I tested the outlet and it does have a good ground.
I have NOT replaced the PSU, Waterflow Sensor, anything else other than the controller board.
If you could please list things to replace or try to get this up and going again… I greatly appreciate it.
Let me know.