Subject: Slide Throttle Question Revision 8
From: Rotary Engine
Date: 7/9/2005, 10:25 AM
To: AA-me


Paul, can you read this attachment.  Its an IGS out put from solid works.  I
modified the slide throttle a little and would like your comments.  We can cut radius's
really easily.  And I was wondering if we could use a Rod threaded perpendicular to
the slide with a 3/32 SS rod to push and pull the slide. This would eliminate the
slot and subsequently the minor leaking at the slot point.  If I'm off base here
please let me know.  T.W.


Really really great idea Tom. Why did I not think of that? :) Simplifies
things greatly with no slots in the covers required. You will have to go up to 1/4
inch
thick Teflon and spacer as the throttle control rods are usually 3/16 inch
in diameter (10-32 threaded). Up til now I have been using 1/8th inch thick
Teflon and spacers. A 3/32" control rod is a bit wimpy :)

Make the steel (green) button a little larger
to be sure it does not roll over.


Paul lamar


Paul/ Tom,

 Tell me is this design still a sandwich plate with a 1/4" +  aluminum
spacer or is the whole body milled from a 5/8" plate?

Looking nicer every time.

Doug in Japan

The curved corners are expensive to do on a NC punch.
Also the NC punch may have trouble with the 1/4 inch thick
spacer. In that case it might be cheaper (but not cheap) to
mill it out of 3/8 or 5/16 inch thick plate. One cover
can still be NC punched from 3/16 thick plate if you are going
to weld on it or 1/8th inch thick plate if you are not going
to weld on it.

The solution is NC water jet cut the 1/4 inch spacer as that
is a cheap process. Or do the whole thing on the NC water jet
cutter. Or just let Tom Weber do the whole thing on the
NC plasma cutter and smooth the edges with a file.
There are a lot of options on how to make this thing.
NC Milling it is probably the most expensive.

Paul Lamar


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