MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
Thanks for this, I just have to add though, I found it really not necessary to use 50 percent infill. At 25 percent infill, they are still very rigid, have decent weight and can withstand just the same impact as 50 percent infill, if not more as they are slightly more flexible. Don't mean to rain on your parade, you have produced a wonderful quad to print - I am both lazy and also want a lighter quad, and at 25 percent infill it cuts the printing time down to 2 hous for Arm2.5.
I also fixed it in netfabb as replicator was reporting dangling edges, but netfabb fixed that up and there was i think 4 holes in the arm piece.