http://www.hobbyking.com/hobbyking/stor ... duct=16583
could be torsionally stiffer in the arms but it does the job
the entire frame with battery is 730g and *almost* didnt need any tuning at all (reduced the stock 4.0P value to 3.8)
Open source models:
https://openkopterframe.svn.sourceforge ... pterframe/
i have cleaned up these models and assmbled them into solidworks that i will post later since people can use this to cut aluminium frames.
