Machine: K40 - with replaced “Z” bed etc
Board: C3D Mini (order # 886 - old…)
Firmware: both “whatever it came with that worked 6 months ago” and “Batch3 from C3D Dropbox”
Digital power level is set to “30”, which via prior calibration equates to 15mA on the analog meter.
Laser is “Enabled” on control panel
Problem/ Question: After ~6m hiatus of not using a tuned and happily working K40/Mini system, I cleaned it off, verified coolant flows, cleaned mirrors (etc) - and tried a test cut, which went thru all the correct servo-motions, but the laser didn’t fire at all.
Pressed TEST on the control panel - nothing. No laser tube activity.
Checked wires (all seated, no obvious issues), tried Power Supply’s test button - success! Tube lases as desired!
Checked forum, found reference to newer Batch3 firmware, tried it, no change - no panel- or LightBurn-initiated laser tube activity.
Any debugging clues out there? How do I make my K40 love me again?