I need to engrave a 747 window as part of a retirement plaque (using a CO2 laser). It is polycarbonate, which I think may be difficult to engrave well (not to mention dealing with the slight curvature of the window). I was thinking of possible approaches. One would be to just try to engrave it directly. I'm hesitant on this because I only have one window and nothing to practice or test settings on. The second would be to mask it, kiss cut the mask, and after weeding, do a bead blast to etch the poly. (my current favorite) The third would be to mask it and then engrave the mask (to eliminate the weeding chore) and then media blast.

I was curious if anyone had done this and could offer any suggestions

This was the inspiration for the plaque
plaque1.jpg

Thanks.

Deane Shepard