H2D: When laser is in use, is the front vent supposed to be open?

Used the laser for the first time today and noticed the vent was open ?

Is that expected ?

Yes. It’s blasting the exhaust fan so it has to pull air into the chamber in order to effectively remove the laser emissions.

Yea brain didn’t engage - makes sense.

Haha it’s all good, happens to the best of us.