Testing titanium

[paulw]

@palmercr

On a normal machine with a metal nozzle around the lens I expect there is little chance of damaging it. On GF with plastic bits closer to the work piece than the lens it could be more of a problem. Perhaps the bottom of the head should be covered in foil.

And, of course, unless something gets warped, the stuff coming back is spread over (at least) the entire aperture. So you’ll get heating problems and potentially feedback problems but not cutting. There was a earlier thread on marking titanium than involved melting pits in a laser-cutter lid, but that took a lot of work.