"Thanks RD.  Yeah seeing other designs helps me but this is really something I'm planning to build and design myself from the ground up.  That is part of the fun of it for me :)  I'll take ideas from other designs like the material used and such, but…"

"I was wondering what material is used for the arms in this?  It looks like a low gauge aluminum square tubing?
Sorry if this is common knowledge, I've been dreaming about building my own quadracopter for some time now, but the price tag on the kits…"