Minecraft: Airlock Concept
Channel: Smidge204
Date: 21/06/2011

Music: "Tidal Tempest (Present)" from Sonic CD, North American release (Extended mix)

This demonstration uses the FiniteLiquid and Piston mods.

So a certain Zamboro sent me a PM about building an airlock using piston doors. He seems obsessed airlocks! But it seemed a worthy goal so I set to task building the smallest airlock chamber I could manage.

The result is a 6x6x6 mechanism that includes a 4x4 passage enclosed by two piston doors, a liquid sensor which forces the air-side door closed while flooded and a pump/drain system to empty the chamber when the water-side door is closed. I'm not sure I can get it much smaller than this, except maybe reducing the size of the pump chamber a little. Maybe.

Check out Zamboro's channel while you're at it. He has a massive and more elaborate sea base project going on a multiplayer server with several people working on it:
http://www.youtube.com/user/Zamboro

FiniteLiquid mod:
http://www.djoslin.info/finiteliquid.php

Piston mod:
http://www.minecraftforum.net/topic/228373-ssp166-pistons/