In a message dated 11/16/2009 11:43:00 P.M. Central Standard Time,
rotaryeng@earthlink.net writes:

Thanks  Paul,
I'd really appreciate that!!

Don


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,
I've been working on the 20B slide throttle drawing, and I've also located
a guy that will machine all the metal parts.  What size aluminum tube  are
you using for the 2 rotor slide throttle?  I'll still need to buy the  tube,
do the welding, and locate the correct thin teflon sheet.  Where  did you
buy your tube, teflon material and hardware?  I'm going to  build as many
complete 3 Rotor Slide Throttle units as I can out of the standard  size
aluminum sheets, so I'll have some units (probably just kits) to  sell.

Don

You can buy the aluminum tube from Burns Stainless. 2 inch OD .065 wall I found a place called SCI Laboratory Specialties (http://www.scicominc.com/teflon_sheet_stock.htm) that has 3/8" x 12 x 24
teflon sheet for $134.  Not a great price, but beats McMaster-Carr's price
by $40.

Mark Steitle