Machine: K40, m2nano
Board: Cohesion3D
Firmware: Smoothie
Problem/ Question: I have installed cohesion3d board to K40 (only took a year, just had to renew lightburn 
) my issue is when i turn K40 on Bed homes fine all movements are ok, but when i arm the laser it is fired on immediately and only turns off if i disarm laser.
I have connected laser gnd & laser fire as in images
Did you provide those pictures? We need pictures to understand your setup!
As a new user i can not upload images