Quote: Originally Posted by
iamgnat 
The simple answer is to have a motor drive the existing cable system, but it will need to have some decent torque to it.
-dave
Any motor used in a automatic climation system have the right torque.
If you see on eBay in Motor section, you find easily this part. The price is very low (60 euro a new part in Audi Enviroment) 10-20 euro as used part.
This motor is a 12V coil and a 5 or 10Kohm for the potenziometer as feedback in 5 total independent wire. With some little electronic you can interface this motor to the Phidget.
Normally the total run of this actuator is a rotation of the arm of 90°...
The total current at the end of the run (and under full torque) is 200 mA....