12/7/2005 (5 hours):

Removing the 0.7" of foam took a little longer than I expected. I don't know if there's a better way to do this, but I just used a Dremel cutting wheel, and carefully etched out the foam. It took two passes to get the final depth, but otherwise was fairly straightforward.

Removing the foam for the inboard rib didn't take longer than I expected - I expected it to take a long time, and it did. I had to re-read the plans and diagrams about 12 times to get it all figured out. In the process, I discovered that on my "make the aluminum parts" day I forgot to make the LWA7 pieces, so I made those and prepped/alodined them. Since nearly all of these parts are 2" wide, I've been cutting them out of some 2" bar stock. Hopefully I won't need a huge length of 2" bar stock later, or I'll have to re-order. This is a lot faster than cutting individual pieces out of sheets, since one dimension is already cut for you. You just cut the pieces to length.