Camera and Print area

[beerfaced]

The camera should see the entire crumb tray with the exception of the area behind the gantry.
You can remove the top cover (it has the glowforge emblem on it) and the mirror (blue handle) and push the lens out with a Q tip. Just make sure to have your hand or a soft cloth below to catch it. Also, be sure to reinstall the mirror exactly as it was when you removed it.
You can make a lens tool.

Replacement Blue Thing (Lens Removal Tool)

Oh no, you dropped the blue thing! That ring magnet is so easy to break. Or maybe blue things just don’t bring you joy, so you discarded it. Whatever, who am I to judge? But now, my friend, your cuts are getting weaker and your lens probably needs cleaning. What to do? Is your beautiful machine naught but a paperweight for lack of a blue thing? Well, let’s fix the problem… Order a new blue thing. Oh wait, that’s a bit expensive and slow. Source a replacement ring magnet. Talk about ex…