I went expecting a little cave with some "computers" here and there, but this, wow. This is extremely impressive, must have taken forever. Respect level = over 9000.
I feel so inferior, it takes me a week to hollow out a 20x20 room (I might have gotten sidetracked once or twice)....
Nice cave... If you want, I have an awesome way to dispense armor. The armor hangs on the wall and the pistons pull the blocks back and they filter into an armor equipper.