One can never have too many clamps!

The first task tonight was to machine 3/4 inch foam to match 3/4 inch plywood!  (hint: it's not really 3/4 inch foam or plywood!)

Pink 3/4 inch foam is actually about 1/16 inch thicker than the plywood.  Too much to force fit.  Instead, I used the spoil board facing program for our CNC to remove an even 1/16 (.065¨) from a panel of foam insulation.  15 minutes well spent!

Glue.  Lots of glue - the panels for the interior of one side took over a quart!  I had a glue spreading partner tonight, and we were able to knock it out pretty quickly - but that's a lot of glue to spread with a 10 minute pot life!

And finally, there's no substitute for lots of clamps.  Except maybe buckets of water to weight down the panels!

Unlike the outer panels that have tons of narrow crown staples, the interior is mostly relying on glue.  There are a few well placed pin nails, but I'm hoping that the bond will suffice for most of this job.