How do I turn it off?

[Jules]

Oh coincidentally, I actually put together a writeup showing how to do it:

How to Kill a Print

For legal reasons, we are not allowed to discuss safety concerns except in the Beyond the Manual section. Note: It’s not unusual, depending on what and where you are cutting, to see the equivalent of a candle flame underneath the material where the laser is piercing the material, and you can see it at the top as well. The air assist usually keeps that knocked back on the surface, but if you are cutting too close to an edge, or near previous cuts that allow air to get in underneath the materia…