>>> Yes, there is a great market waiting for a good, proven one-rotor.  It
>>> would take a big bite out of the 100HP market.
>>
>> Agreed!!!!!!
>>
>>> The major stumbling block is the e-shaft -- even with iron endplates it
>>> would have a lighter all-up weight than the O-200.  With aluminum you
>>> would be lighter than the Notax (er, ROTAX) 4-strokes.  I wonder what
>>> it would cost to make them the right way?
>>>
>>> Keith
>>
>> You don't want to know !!
>> George ( down under)
>>
>> George, Extreme Racing charges $3700 Aus for a three
>> rotor shaft. What is the US to Aus exchange dollar for dollar rate
>> right at the moment?  Surely they can knock out a one rotor shaft.
>>
>> http://www.xtremerotaries.com/
>>
>> Maybe we can get together and have a group buy on one rotor
>> shafts. If ten people order one rotor shafts from Extreme
>> I am sure they would whip out a batch. They got the billet
>> material in stock and the NC lathe program is more or less done.
>>
>> Paul Lamar ...No rotor no motor.
>
> It shouldn't cost anywhere near that much to make an e-shaft for a
> one-rotor, even as short-run production.
>
> You're talking about one piece of metal, programming a CRC machine then
> standing back for a few minutes.  Is the e-shaft nitrided?  There's a
> $100 - $150 job at any of the places doing reciprosaur crankshafts.
>
> Bottom line, maybe $1000 for a one-rotor e-shaft, including a healthy
> profit.
>
> Keith

Keith do you have experience in this field i.e. CNC costing?
I do agree that some of the asking prices are way over the top.
I did buy some exotic steel, in round dollars about $100.
I did get a quote of $400 to turn it manually, cheapest so far, but I would
prefer CNC for accuracy of the eccentricity and repeatability.
Then there's the grinding - cost ?
and the Heat Treatment - cost ?
So your estimate of $1,000 is not far off the mark, however I would like to
get it done cheaper if I can - I'm still working on it.
George (down under)

If a cad file were available I could approach the machine shop I do business
with for a quote.
They have a nice large cnc machine and typically charge me just for the lathe
time at $150 an hour if I bring the material.

Anyone out there good enough with a micrometer and cad to knock out a cnc file
and GPL it to the list so we can get quotes from our local machine shops?