* I was going to do this on our new fibre laser but didn't - it's both too small (it was originally going to be 4 carefully referenced cuts, rotating a new corner in each time, which is what the green quadrants were for) and too slow progress. Turns out the CO2 laser did a better job getting through the anodised layer *and* fits the whole cut in 1 pass.
* The laser isn't 100% parallel and disperses after the focal point. This deposited some energy on the plastic/labels.
