12 d
Paul I have been trying to find the factory dimensions for the bearing surfaces
of the Renisis e shaft with no luck at all.
I have found a retired engineer happy to make me a single rotor
e shaft but I do need these measurements to be spot on. Do you or
any of your subscribers have these details to hand. Need rotor and
main bearing surfaces factory measurements.
Hope someone could help
Mark Dillner
Most people start with a 2 rotor shaft and cut it down.
That saves some heat treating and grinding.
I don't have a mic that will go that big and I don't have
an RX8 shaft. I have some older shafts but if your building
a one rotor it probably does not matter as there are only
minor differences in length.
Will you be at Aero?
Paul Lamar
We put the shaft in the lathe today and it wreaked two cutters in a few minutes.
How do those who have done it go about cutting it down ?
The engineer thought we would go through a hell of a lot of cutters .
I didn't want to take measurements off my old shaft when
( if we were to make a new one) we could start with correct measurements.
I spoke to Mick Hurley this morning but he didn't have much that he could
help me with as it was his dad who had played with the one, three and four rotor
engines .
I'm not up to scratch with Aero at all Paul.
Mark Dillner
Where they carbide cutters?
A another trick is mount a grinder on the tool post and
use that to get below the hardened surface.
Also a acet torch can heat the unwanted lobe and let it cool slowly.
Get it red hot, and then let it cool slowly.
Paul Lamar
I do have one RX* e shaft on hand . if you send me a sketch for which dimension you
want it
will be a pleasure to help you
JEAN PRUDHOMME
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