Connecting MKS DLC32 to Neje laser, common power supply

[jeffeb3]

@dwkisker

What about using only the TTL and GND from the J18 connector (instead of using the J7 modulation) and then supplying 12V needed for the laser separately (but from the same PS)

This is right. I assumed that is what you were going to do.

I’m not sure I follow the logic after that quote. But this will work. The gnd and pwm are just to control the laser. The power (V and Gnd) should come straight from the PSU.