On Fri, 30 Dec 2005 17:55:36 GMT, "Toller" wrote:

Unfortunately I screwed up in cutting the slots on the mating pieces and the
spacing only worked with the plywood upside down, with the thin part on top.
Normally I would have redone it, but this was for a project my son was doing
for 6th grade

Who was doing the project, you say?

If you ARE intending to teach him, then do it right, and mark matching
surfaces before routing.