nemo1966:
Thansk for the reply.I was thinking about this http://www.ebay.com/itm/Repairing-Part-6mm-Shaft-Dia-DC-12V-500RPM-0-8A-37GB-Electric-Geared-Motor-/300777477235?pt=LH_DefaultDomain_0&hash=item4607bc1473
But I am unsure if it can be reversed.
thanks
Being a simple DC motor, reversal is just a matter of the polarity of the applied DC voltage, which a H-drive motor controller handles for you automatically. At .8 amps any motor controller rated at higher then 12 volts and say rated at 2 amps max or more should work fine, and there will be many you can choose from for that size motor. A more important question might be is 500 rpm OK (not too fast or slow?) for whatever mechanical arrangement you have for moving the draw going to work? Will the motor have enough torque to move the drawer? One can approch those questions using engineering and math skills, or just try it and if it's too small try a bigger motor, at wasted expense. I can't help too much on the mechanical side of those questions, but others may and also have a reccomend a specific motor controller.
Lefty