Machine: Bought 50W CO2 Laser with M2 Nano.
Board: replaced with C3D Laserboard
Firmware: Smoothie latest version (already updated)
Problem/ Question: I completely disassambled the original laser machine and put it into a way larger case. I use the C3D supplied 24V 5A PSU and disconnected the 24V and 5V coming from the laser psu. I removed the movable Z-Table since its crap. The case is grounded to the wall-outlet-ground. Steppermotors work perfectly. Everything is fine, except:
I turn on the laserboard, then the laser psu. Light, water- and air-pump working fine. Digital Potentiometer is up and set to 8mA. Laser Indicator LED is on. Laser starts firing after 3seconds with what is set on the display. This should not happen!
diagnosis so far:
5 and 6 are shorted: laser fires. I immediately turn off the machine or set the pot to 0mA.
5 and 6 are disconnected: laser doesnt fire on start. “Test fire” works with digital pot. In this case the laser won’t fire the signal from the laserboard.
5 to 11 are disconnected (dig. pot): laser immediately on 100% (dangerous for tube, output way too high).
I disconnected the laserboard with the same results as above.
I tried to connect 10 & 11 and connect 9 with the laser board output as supposed here:
Result: Laser 100% on.
I might have damaged the psu in trying different setups. I think the psu should not automatically fire the tube on start, only when receiving a signal.
Is my wiring correct? I think I need to rewire the dig Pot in some way, but honestly i don’t know how. This guy got it figured out, but I fail on applying the idea:
Anyone can help or had the same issue?
Thank you in advance!