Laser not firing

K40 3020

Changed from Nano to C3D

Firmware Smoothie

Problem laser won’t fire when running Lightburn software. It goes through all the motions of doing everything else but no laser!
I have test fired the laser with my laser and it works fine, just not with the board!
Please help!
image|375x500

What are your settings? Are you raster engraving or cutting?
What power levels have you selected?
Those are a couple of things that will affect whether the laser fires.
Fred

Thanks for your response, I have just sorted it thank you. It was another power cable to the PSU, now that’s sorted I can start to play with the software.
Thanks again👍