This is basically my pneumatic engine at first glance. I did change some things to make it run a bit smoother though. in the past day i have rebuilt this around 3 times. and then came back to this. i was trying to build a good studless design but decided just to go back to this original design. It worked pretty well but not as well as i would have liked. Facebook page: facebook.com/mindstormspodcast Google plus page: bit.ly/mindpodplus Thanks to musikConomy for intro/outro music You can download and subscribe to me on iTunes at http://bit.ly/mindpoditunes