Floors have been the latest project and turned out great. One of the rare projects that in real life went exactly as I imagined in my head.
I think I mentioned before that I got spooked about road debris so they're 0.1" 7075, stout. No sense in that material if it's not well attached so they are held on with 3M structural adhesive and cherry structural rivets. I painted the bottom of the floors with the same rocker texture I'm using elsewhere, trying to limit the number of finishes just so it doesn't get too busy. Prety much 3-4 basic colors/textures. I left the tops bare aluminum since it was really well protected with a thick film so looks pretty great when you peel it off. I think I'll put sheets of grip tape that are short of the tubes by an inch and a half or so, should look good and keep the scratches in the bare aluminum to a minimum for a while. Lisa wants bound all weather carpet floormats that fit in the tubes but I figure those can happen when the bare floor starts to look bad.
Bought a sweet auto countersink that makes the structural rivets look pretty pro. They are so flush (hella flush!) you can just barely feel them and only based on the texture change. Overall super happy. Bring on the rebar/step ladder/lumber. (don't actually)
BTW, I read after this that Caterham (and Lotus, etc) just uses 0.050" aluminum floors with rivets but no adhesive and bolts the seats right to the aluminum. Yikes. Probably somewhere in the middle is a good, correct engineering answer but I'll err on my side. I also wonder if that would allow enough seat movement to be disturbing. Driver's can really feel seat stiffness, seems like not the best area to skimp on a 'driver's car.'
Painted and countersunk:
The rivets really didn't want to photograph with the phone. They look proud here but they're dead flush.
Interior, ignore the yellow tape and blue film, just in case the epoxy spooged.
Done/not done again:
Yesterday's project, center closeout for a bit more structure. This looks a lot like the same part on a C7 which is kind of cool.
Tonight's project, front angles to tie in the motor mounts and seal off the whole thing. NOW they're done (nope, needs powdercoat and final rivets tomorrow, THEN done)
Bottom side of the car had a lot left to do since it wasn't accessible for most of the time. As soon as I drive the 12 rivets in the angle bits it will get flipped over for hopefully the final time (on purpose, anyway)
Next is brake and fuel hard lines, way easier without many panels in place. Then carbon sides, then probably engine? I need to think the order through some more.
Alex