Thought I’d share an idea for marking tin cornice for corner coping.

I built a jig to hold the cornice in place as it would be when installed. This was important, since the material is pretty springy and so, difficult to accurately mark without holding it in place.

I was unsure how I was going to accurately mark a 45 deg. miter on the end, when it occurred to me that I could use my laser level. I marked a 45 deg. line in pencil on the jig, snapped in the tin, and moved the jig around until the pencil marks lined up with the laser beam.

I put blue tape on the tin, because the laser line is hard to see on a reflective surface.

Once marked, I cut the tin with a fine cut off wheel on my 4″ grinder. I still needed to tune up the cuts a little, but the laser made marking a snap.

It also gave me one more good justification for shelling out money for the laser in the first place. 🙂