See my answer to Denny.

A major problem is actually sourcing  motor of correct torque *and* speed.
I originally envisaged a geared DC motor but I am wondering if a stepper
motor might be better as there seems to be a much wider range available and
speed can be more easily controlled.




>
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__________________________________________
David C Brown
43 Bings Road
Whaley Bridge
High Peak                           Phone: 01663 733236
Derbyshire                eMail: dcb.home@gmail.com
SK23 7ND          web: www.bings-knowle.co.uk/dcb
<http://www.jb.man.ac.uk/~dcb>
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