Originally Posted by Azarr
I lock the surface in place using these simple jigs, that way they're always centered when you heat shrink the last piece. The strange material is something called balsa that we used in another life.
I too use a jig very much like this one, I still ended up with a slight (less than 1/32") sag in my surfaces. I need to make a new jig to allow for this or find a better way of bending my Z-bends to make them a little closer fitting.