Briefly, here is a layout I intend to use for the door:
(note, this is not in 3d so bare with me)
-| XX |-
-| XX |-
[ ][ ]
The bottom layer represents two sticky pistons in the floor pointed upward with two sticky pistons facing perpendicular. I have tried to come up with a way to have the bottom two sticky pistons activate first, and then the top ones pulse on and off, before the bottom set turns off. I had the idea of a pulse loop, but no way to shut it off from the source once it is activated from a button. A delay only changes the on speed, but not the off. I also need an input on both sides of the wall. Logic gates (and redstone in general) confuse me, so any help or direction with this would be greatly appreciated.
Do you want to push a button then the bottom Pistons turn on then both the side pistons turn on then off. The bottom Pistons then turn off. If that is what you want I'll go take some screen shots of how I would do it and show you
I will try to post some screenshots today if I can. I'm using the 360 version so it won't be as easy. Until then, I will try to explain what's going on.
Two pistons are stacked in the floor. One facing up, and the other facing out:
There are two sets, side by side. When the bottom ones turn on, it pushes the upper set. Then the upper set will turn on briefly and pull the blocks in front of them back. Then the side pistons will turn on and pull the blocks. The final step would be the bottom set of pistons to retract.
To "close" the door, the outer pistons would push out the blocks. Then the pistons in the floor would push up, then push out, and retract back into the floor.
Normally, I would simply use a set in the floor and one in the ceiling in a 2x2 fashion, but I've come to enjoy having at least a 3 high entry (gets a little claustrophobic).
Anyways, I will post some screenshots today of the inside and outside of the layout. Thanks for the help in advance.
I've come up with a couple designs. The first three pictures are regarding the above layout. It's hooked together with levers, so each one has to be pressed individually for now. What I'm really having trouble with is getting the right redstone logic gates and mechanisms to make it work with a single input.
The fourth picture is less complicated and it may be one that I go with, with it being considerable cheaper to make. The only issue with that one is with timing. I have yet to find a way to make it stay off longer before powering back up. I've read a little bit about latches (and still confused), and I was wondering if it was possible to have the outer/inner button turn the circuit off and a secondary reset button if there was no way to delay it. And yes, I have tried repeaters with full delay but that only made the circuit turn off slower rather than come back on slower.