>Really all I want is 6 mechanical control arms that have a linear motion of
>about 1 cm each. I was thinking of a mechanism with a single motor and
>solenoid. With the solenoid activated, the stepper motor can select the 1 ~
>6 door to open and close. With the solenoid off, the motor gets engaged to
>the doors of the selected shed and opens/closes them.

Use a model airplane servo.  Very easy interface.  http://www.fmadirect.com
and others.

Andy

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Andy Kunz - Statistical Research, Inc. - Westfield, New Jersey USA
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