Subject: 20B Slide throttle
From: Rotary Engine
Date: 11/16/2009, 9:42 AM
To: AAA Put this in the To box



 Hey Mark S.,
 Do you have any photos or drawings of your 3 Rotor Slide Throttle  that
 you
 can e-mail to me?

 Don

 I would like to see them as well.


 Paul Lamar

 Don,

 No, as it is not yet built.  All I have is Paul's CAD drawing.  At this
 time, I'm still gathering materials while I'm working on the engine.

 Mark S.

 Since there are two of you I will up date the 3 rotor dwg later today
 to the thin Teflon version which will save you a bunch of money on the
 Teflon.

 Paul Lamar

Paul,

Too late.  I already purchased the teflon.  Thanks anyway.

Mark

Did you get enough for Don?

Paul Lamar


Paul,

Possibly, but I can't really say for certain as it depends on how many tries
it takes to get a usable part.  :-)  Also, the material was supposed to be
.380" and it is actually .400".  So, I'll either have to make the spacer a
little thicker, or mill down the Teflon.  Haven't decided which way to go.
Also, I will "donate" a chunk to Bob Darrah so he can make one for his
3-rotor engine.  If things go well on the first shot, I'll be happy to sell
Don a chunk at a good price.  How soon does he need it?

Mark S.

Oh I see you bought the cheaper low tolerance stuff. I should have warned you about that. I did warn people but it was several years ago.

Teflon is easy to cut but hard to hold down on the mill as double backed tape will not stick to it. Usually what is used is a vacuum table.

You can probably cut it a bit over size on a band saw and clamp it along the edges.


Paul Lamar



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