[Qbranch]

Originally Posted by squirrel

We were having trouble with air consumption, so we thought about how to set up the cylinders so that they only need air applied on one end, the other end is open and gravity or some other part of the robot pushes it back to starting position.

We are using this feature in our succsssful "Six-Shooter" trackball launcher. Only one piston has a return line which pulls the others back along with it. This also greatly increased efficiency as the high side of the other pistons is fully vented in the pre-firing condition.

-q