Cut the tip rib and center trailing edge gussets from 1/16" Aircraft Birch Plywood. Glued one rib tip gusset in place. I'm going to make a jig to pre bend the other three to make glueing up easier. Also cut out the 1/16" ply leading edge sheeting. Since the gusset was hard to glue up, I'll make a jig similar to the picture here to pre bend the sheeting too.