Two way Piston elevator

Ive seen lots of fake attempts of a piston elevator. After a time making a lot of experiments I found out a very compact and simple system for making such a project work. Here I present you my own version of a piston elevator. I recieved some help though, my friend Fincent helped me out making the elevator easier to use.

In order to use it you press the button wether you want to go up or down. In the case you need to call it you simply move the lever forward and backwards. It is fully functional, although it is important to avoid sending two opposite signals at the same time. If it gets stuck(sending two opposite signals) you only have to wait and call it again. I hope you guys like it and Im looking forward to upload a video. Please comment if you like it.

This elevator design can be extended without limit. It also can be modified so it stops at certain floors. If you want to do any modifications or use it in a project please ask me and Fincent first.