I've been working on a drone frame in my spare time. The first part of it is done and assembled:

0612171301_HDR.jpg

It's about 15 inches between motors, and 20 inches across the diagonal. All of the individual pieces were designed so that they would assembly by dovetailing together. It seems like there's a little too much flex across the diagonal as it stands, but I still need to decide how I'm going to fit the batteries, flight controller, and other electronics. Hopefully by the time I've got all of that built in, it should be more rigid. The four motors that my friend is loaning me for the project should be around the area of a 50cc internal combustion engine, so strength will be a factor.

I'm impatient and don't trust my cheap-o printer for super long print times, so I ran everything at low quality settings in Cura. The inner pieces were about 7 hours each, and the outer arms were around 10 hours each.

I'll update with more pictures and information as the project progresses.