Air assist fan - does it operate without the air direct shroud?

[evansd2]

If you’re engraving the inside of a bowl that is more than 0.5” deep you might like this thread:

Deep focusing the lens

So I had this idea for a while and finally got to it: an extension spacer for the lens so that you could engrave/score (or cut) the inside of a tray up to about 1” deep. Normally you are limited to trays no more than 0.5” deep because of the limited focal sweet spot of the Glowforge, but if you physically move the lens down and lie to the Glowforge about the height of your material, it will happily do the job. Here’s a quick makeshift “tray” that’s about 0.75" deep, a really shallow cardboard …