Likely this has been suggested before but here goes:
I’d like to be able to tell the GF that my exhaust can be set to a few modes.
Full mode is what we have now… it just blasts away.
Low mode would run at some percentage speed, maybe 50? For things like paper or tiles or whatever isn’t going to smoke much.
In theory we could have a sensor or use cameras to determine smoke loads, but it’s probably best to just let the human decide. it would make the machine run much more quietly.
Of course, this may be a nonstarter due to reduced airflow over the heat exchangers… but that fan is really loud for engraving tile, which essentially generates zero smoke.