Awesome aluminum extrusion gift!

[serpico760]

A Swiss machine builder friend of mine was nice enough to give me a large quantity of 15 series 80-20 aluminum extrusion and a large bag of T-nuts, 180 linear feet! Just what I need to start building the internal structures of the habitat!

 

[Mad Texan]

As you might assume, I like building with this stuff.

 

[serpico760]

As you might assume, I like building with this stuff.

Which series where you're using 10 or 15 and what's you plywood thickness?

 

[Mad Texan]

Which series where you're using 10 or 15 and what's you plywood thickness?

I used the 10 series as I felt the deflection rate was more than high enough for my use. It also took up less room and weighs less. However, had I come into a lot of 15 series I'm sure I could have been swayed.

My plywood thickness varies, I used 3/4, 5/8, 1/2, and 1/4 dependent on the strength needed and if I needed a mounting surface. I then did rabbet cuts to lock the wood in place except on the 1/4 because it fit in the slot. It sometimes is interesting to get the panels installed and be able to tighten everything down.

If you don't have it, MayCAD-64 , is a very helpful tool for laying everything out. And while I started with 80/20, I used a lot of Tnutz products as well.