George Lendich wrote:

George (down under)

Now if you adapt it to Tracy's PSRU you need another 1/2 inch thick
plate.
Not light weight.

I like my idea better of quite some time ago :)
It would have given you the support you need and fit Tracy's
perfectly.

Paul Lamar

Paul,
On reflection, yes your right!!

However it would require some additional machining, which I was at the time
trying to avoid.

I would require an outside (face flange) for my unit and Tracy's unit would
require a inside face for his seal, tricky to do with a raised tube of any
length or a insert plate (as it is now). Since that debate I've figured out
that that all it requires is a tapered( Both Sides) Tube for the foundry. I
would make it fairly thick for my purpose and it could be machined-out for
Tracy's unit.

However in reality it's not dissimilar to what we have with Butch's
drawings.

Actually I would be happy to go that way as it saves me length in the
Planetary housing section.

Mine would end up similar to the Ross design.
George (down under)

What is the bottom line on your foundry ability to cast thin walls.
is 5 mm about it?

If an when I get my NC mill working I can bid on machining them for
you.
At least the ones bought in the States.

If it were me I would machine a lot of lightening holes as IMHO any
sand casting,
due to the the thick walls, would be over designed strength wise.

Paul Lamar
 
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