I've done a few mirrored edge gallery wraps but trying to improve the edges on the wrap during the stretch. Sometimes they're a little off and I need to re-stretch. Part of the problem seems to be the stretchability of the canvas. I'm using BC Lyve. Do you find it stretches more than other canvas? Any little tricks to getting the mirrored edge right on the edge of the wrap?
You'll see some good responses at: http://www.luminous-landscape.com/forum/index.php?topic=72081.0
When I posted that, I was embedding the extra whitespace I want for stretching in the file, then have a 1px black line that I carefully cut off, evenly. That way, I can center the frame until the measurements are the same on opposing sides. I often have the first edge I'm going to staple have about 1/8" extra, to account for that it's going to stretch.
I'm still doing that. It's still driving me nuts.
I haven't tried Peter/neile's dressmaking pins idea. Can't believe I wouldn't see them after, but really should try it because they both swear it works.
I'm seriously considering building a large light table for this purpose, to instantly be able to see the edge from the back of the canvas when matching up the frame. Really liked bill's older method. They're expensive when large, hence the considering building it part. Hopefully a winter project.