parts will no longer be machined, they will be grown.
  Tony


  http://www.arcam.com/index.aspx
Tony,  I followed the above link and found that titanium aluminide and
berylium are some of the materials fabricated. It looks like a way to
build rotors. There is one installation at NC state university. Anybody
have a relative in the engineering program there.
george grimes

I'm going to go see them in San Diego at the AAOS show, they are using these machines to grow
titanium knees, and shoulders. I'm sure the cost of the machine is  exspensive. I think it would be a good investment.
I'm more worried about the power requirements. I'm thinking 440v 3phase maybe? Imagine you can grow a rotor and the gear teeth all in the same part. Pretty damn cool if you ask me. I'm not sure if it's there yet for finishes it looks you may
have to do some secondary machining to clean up the surfaces I'll know more in a month.

Tony

I am all for you building a gear box but you need to focus on
what is important. You can use existing technology to get
15 to 20 pounds out of the current gear box with out pushing
the envelope.  Heck if you just went back 30 years and copied
the Ross you would get ten pounds out. I don't know how much money
you have but it will take many many hours in the air and years to prove
the advanced technology. We have been at this rotary engine in airplane
thing for 12 years now and changes happen very very slowly. Same
as the certified aircraft market. Pilot's ass's are on the line and
they are very reluctant to try something new and untried.

If you want to see some scary flights check out my Alaska
videos. I was young and stupid in those days. If we went
down in the water we would have had 15 minutes to live.

http://www.rotaryeng.net/yak-val.mp4
http://www.rotaryeng.net/val-anchor1.mp4

Paul Lamar