OKAY wow lots of replies and interests. Okay I'll make a tutorial on How to make the Door and how to wire a "master override switch aswell.
All the over ride switch does is provide a constant external source of power to the door, I have it setup so that when the switch produces power the doors close. Therefore when you prove the doors with power from a second switch it will always stay closed.
How does that stop you from becoming trapped inside? If the outside switch gets left on, then when you try to open the door from the inside they will just stay closed. Right?
How does that stop you from becoming trapped inside? If the outside switch gets left on, then when you try to open the door from the inside they will just stay closed. Right?