[simpits-tech] Pneumatic controllers

[Bubba]

Matt Bailey wrote:
> This is indeed something I quickly realized when considering using a
> servo to
> control a valve, or to control the altimeter needles
> directly........the
> servo just isn't precise enough. I think the bottleneck in that case
> would be
> the mechanics of the servo. As precise as R/C servos are, they're
> still
> designed for ~90* of rotation, not adjusting a valve precisely within
> a few
> hundreths of a PSI, or rotating an altimeter arm 7,000* precisely.

Ditch the RC servos and go with industrial stuff. There are some out there 
that have resolutions so tight you can't see the output shaft move. Like 
.001 degree. Steppers would work too, but you have to give 'em a home switch 
somehow.
-- 
Steve
N205FT
mysticz28 at swbell.net
He who seeks will find, and he who knocks will be let in.