Any recommendations on grounding the k40? I noticed the poorly worded manual stressed grounding the unit, but from what I could tell it looked good.
If you have good ground in the wall outlet, no need to add anything extra.
Just check the cable, i have seen machines with 3 prong cables, where only 2 was connected inside the cable.
@HP_Persson That’s what I assumed being in the states, but this is my first laser so I"m extra paranoid. Thx for the assistance.
With electricity you can never be too careful 
Just saw this video today.
Just saw this video today.
Just saw this video today.
Sorry for the triple post it was saying it couldn’t ad comment. 