Paul
Some time when you get a chance could you have your machinist buddy give
me a quote on making this plate?  It's aluminum and fairly simple.  The
center hole is really the only part I can't do myself.
Thanks
Randy

That taper on the center hole would be a real problem
to do on an end mill with out a special tool I suspect.

Since it is not critical I would cut it under-size and use
a die grinder to taper it.

BTW Roberto, this is Randy Lewis's turbo charged 12A one rotor.
Handy in the Alps.

Paul Lamar


The tapered center is real easy to do on a lathe. Use the 4 jaw chuck and get
the hole centered. The other part is an angle attachment that mounts on the
bed. Manual feed, but for one or two pieces it would be OK. Once the setup is
done the machining would only take a few minutes. Any machine shop should be
able to do this.

Dale Davies

That is a huge four jaw. My neighbors lathe is not that big.

Paul Lamar