[ngreen]

You're getting a pretty good idea. Yeah it is airflow but air flow is due to difference in pressure so you're are equalizing pressure too.

Notes: I blocked both of the exhaust port of the single solenoid so I could switch the side of the output I wishes to use. My loop simply refers to a piece of tubing that uses a quick connect to the solenoid out but is connect to a quick connect tee with a piece of tubing connecting to the other part of the tee. It is lighter than brass fittings and easier to switch sides rather than a stop (but a stop would work too.) The exhaust isn't routed normally. Both are blocked. The open output is were the exhaust from the cyclinder goes through when you want the cylinder to move.

Your basically correct. Ask question if you have any. A great way to perfect it is on a pneumatics board that way you can see how the system works. Seeing is Beleiving. My mentor hardly believed it when they saw my pneumatics board and it changed completely how our robot was built. Good luck.