Good morning Paul
 I am sending you the propeller shaft design and i would like to know if
 Jeff can machine this shaft and how much.
 I specified sae 4130 but you can recommend a better choice for shafting
 and treatment.
 I modified my housing design for a larger surface bearing at prop side
 and also a better ring gear attachment with back plate and rivets plus
 bolts.
 The ring gear back plate is already machined .
 With Alibre i can not convert for Rhino files but dwg can be open with
 Solid Works eDrawing

 Jean Prudhomme

 Looks good Jean. Is it an exact copy of a Lycoming or Continental shaft?

 If so that is good. Do you mean planet carrier back plate? If you
 want a 2.85:1 gear box you will need to drive the planet carrier
 and hold the ring gear stationary.

 You will have to contact Jeff directly and see if he will do it.
 If you are only making one or two you don't need an NC lathe.

 jeff doddridge <4starr@cox.net

 Paul Lamar

Yes Paul this is the exact Lycoming 10-540 big journal from the seal to
the flange included, i did turn around 180 degree the planet outer ring
and machined the back plate and fix with rivets a larger plate in dia so
i can bolt it to the housing and the fact the planet stay forward  i
will need a thin oil impregnated flat washer between the outer ring and
the back plate and panet housing.

I did drive out the small gears shaft from the planet and i will make 6
longer shaft for the small gears to been driven by the propshaft and
the planet embossed reset shaft will be press fit into the propeller shaft.
I intend to built one unit for testing and built a second one may be more.
I will request also a quote from a drive shaft manufacturer if they have
the material available

Jean Prudhomme