New K40, laser not firing at all - Lasers - Maker Forums

Someone found three K40 machines in a storage unit. I snagged two for $100. Been a while since I've had one. : r/lasercutting

K40 Not firing in auto - Smoothieware - LightBurn Software Forum

K40 upgrades

Ready to upgrade from my Modified K40 Thinking of this Monport 60W - Community Laser Talk - LightBurn Software Forum

K40 Laser not firing? Possible Easy Fix (bypassing water sensor)

So I bought a cheap 40w laser.

K40 Laser isn't working - Lasers - Maker Forums

petermobbs Photography and electronics

K40 12x24in rebuild (In Original Case)

K40 and Makerbase MKS DLC32 V2.1 - LightBurn Hardware Compatibility - LightBurn Software Forum