Simple Parallel Port controller

I am looking for some help to use my parallel port to turn off and on a
small relay switch. The device I want to control will shut off automatically
after 1 cycle but it needs a 1 second ON switch to activate it. What I am
doing is turning a small motor on and it will turn one revolution and then
stop when the cam lobe on the pulley hits the switch lever to stop it. I
need the computer to turn the relay on to start the motor moving. The motor
is just a plain motor 12V not a stepper or servo. I will have the final
drive slowed way down with a pulley so the switch cycle will take 3-4
seconds. I have seen some simple controller boards for small servo motors
for about $50 but All I need is a Off and ON switch. I would appreciate any
help.

Thanks
Scott

Scott Riddle
sariddle@...