[Jon Stratis]

Generally, if you use pneumatic s you want to use it for multiple things, in order to justify all the stuff that comes along with a pneumatic system.

Doing it with a motor would be fairly easy- and AndyMark PG motor/gearbox es you a nice output shaft you can use, or run that to a separate shaft using a chain and sprocket. With something like this, it's always a good idea to have a hard stop at both extremes, along with a limit switch at both extremes to tell you when you get there. Your code can then recognize that when one of the limit switches is pressed, it shoud stop moving the motor in that direction.