Laser firing is erratic

LightBurn Software Questions
1

I have an ACMER P3 Laser running on Lightburn V1.07 which has been running really well for the past few months.
Recently the laser firing has been erratic. After working well for one day it stops firing the next morning when I try using it.

  • sometimes it does not fire
  • when framing a line rectangle, it fires/marks the first and last sides only

I have tried the following troubleshooting areas

  • restarted the computer and laser machine
  • removed and reconnected the electrical connection to the laser head
  • rechecked all possible connections

Not sure what else to do.
DOes anyone have any ideas?

2

You could monitor voltage at laser while moving connections/wires or while laser is in motion.

1 Like
3

I think @Dskall is likely correct. Especially if this is occuring in the same general area.

Usually what happens is the wire in the drag chain breaks, making it intermittent, as you describe.

Could be power or pwm control, either will effect the modules output.

Iā€™d start, if possible, with an ohm meter checking the wires with the head in the area of failure.

Good luck.

:smiley_cat:

1 Like
4

In most cases the laser connection wire is broken and only has intermittent contact.