User:Fadyblok240/Draft:Tutorials/Piston doors

Jeb doors
A Jeb Door is a piston door that is completely hidden in the wall that it is in. Jeb Doors come in two varieties: half and full. A half Jeb Door reveals a 1×2 passageway. A full Jeb Door opens to a 2×2 tunnel. Unfortunately, due to the lack of quasi-connectivity, this particular design does not work $$, though there are other designs that work.

Pros:


 * Easy to build.
 * Simple.
 * Requires few materials compared to hidden piston stairs.
 * Easy to modify. For example, you can modify it to open with a self-destructing lever, or you can use mods like ComputerCraft and use the computer to request a password to open the door.

Cons:


 * To blend in well into the environment, you will need a stone or dirt wall. Stone walls can be found on the mountains biome (and its variants).
 * If you need to build it on a plains biome or other flat terrain, you will need to somehow blend the door on the environment. If this is impossible for some reason, your only choice will be the hidden piston stairs.
 * Players can accidentally mine the door, as no one knows there's a door on the wall.

Horizontal Jeb door
This version features a Jeb Door fixed horizontally on the ground. It can be used as a hidden door to a secret base or passageway.

Simplest 1×2 piston door
Uses 2 pistons to pull out the top and bottom of the door. Put a redstone torch powering each piston and connect them both as inverters. Put a lever on one block with wire on it, build a wall on the front, and it's done!

Another version of a 1x2 piston door can be seen here:

(1.12+) Scalable Piston Door (up to 15×7)
Uses observer blocks for a design that can be easily scaled to any size up to 15 wide and 7 tall. The design is resource efficient enough to allow for the creation of larger doors even in survival mode.

Piston Lava Door
A lava door that allows for safe entry to rooms without the player getting burnt, uses pistons, redstone and pressure plates to accomplish this!

Fully Hidden Piston Door
This design is fully hidden, no pistons or redstone visible. Also, this design can be activated from both sides, and still, everything will be hidden. The design isn't too complicated and doesn't take up a whole lot of resources either. The only cons are that the ceiling must be 2 blocks high, or you'll have to make the door more complicated. Though, another problem is that the bottom part of the door MUST come out from the floor, not from the sides, or as mentioned earlier, you'll have to make the door more complicated. Not to mention that it'll slow down the process, however, this door is just a little bit slower (around 5 torch delays slower). This design runs smooth on multiplayer servers, and is actually pretty much the main reason to build this, more complicated version - it is easy to change the directions in tunnels, confusing people and they won't see the pistons so they won't realize that the path has been changed. This does make sound though, so make sure they get far away before you activate it, if you don't want them to hear it.

Improved Hidden Piston Door
The improved hidden piston door is a 'flush inset' 2x2 piston door that can be opened through the use of a redstone torch on a wall. PearSquirrel improved this by compacting it and configuring it with pressure plates on the inside.

Smallest 3x3 Piston Door with Slime Blocks
This is a 3x3 piston door using slime blocks in versions Java Edition 1.8 and above. It is the smallest 3x3 piston door to date. It is only 11x8x1 (88 blocks total)!

2x1 Completely Hidden Seamless Inside and Out In-Wall Piston Door
This is a piston door that cannot be seen on the outside, and no wiring/pistons are exposed when the door is open. The video below includes a demo and how to build it.

2x2 Out of Ground Piston Door
This is a secret door with a twist: The blocks aren't being pushed from the sides, they are pushed from the ground and are pushed twice. This design uses a double extender in order to push the blocks 2 up to hide the entrance. Note that this design is space and resource unfriendly, thus you'd get more benefits out of it if you used it in a custom map.

Multiplexing Piston Door
This is a very over complex piston door that has way too many repeaters to be useful at all. It all runs off of a button that is connected to many different small piston doors.

Piston Door
You can make doors with pistons and here is the most compact way. You can add a combination to the mechanism.

Hidden Door
For a door that is completely hidden except the lever/pressure plate/button to power it, you can use a piston door. A very simple version is one that just moves 2 blocks to the side with 2 sticky pistons, which are hidden inside a wall and are powered by redstone. To make some more complicated and fancy ones, you can get the blocks to move first away from the player, and then sideways, allowing for 2 wide doors and it also allows you to build it so that the door appears at the middle of a wall, instead of it only being possible to make it either in a corner or in a tunnel of the desired width of the door, because now all the pistons are behind it. You have to do some redstone wiring, though, and if you want to make the door 2 wide it will need at least 12 sticky pistons, 4 to move the blocks into the wall, 4 to move them sideways, and 4 to move the four pistons that moved the blocks sideways sideways. You have to make the delay from the input to the first four pistons, the ones that move the blocks into the wall, 2 ticks. Then split the redstone wires that go to the other 8 pistons; one way has a delay of 1 tick, the other one a delay of 4 ticks. Then after the delays you can join the wires again and bring them to the pistons. To make it more hidden, replace the blocks with bookcases. An example of this can be found below.

If you really want it to be invisible, remove the button or lever, and instead carry a redstone torch. Place it where the button was when you are ready to enter. It will stay open until you exit but hey, who carries those things around randomly anyway?

You can also completely hide your button or lever by putting it underground in a specific place only you know of and once your in it can't be open from the outside. An example of that is below.

Simple piston door
Notes:
 * The empty squares in Layer 2 should be lit with a torch, otherwise mobs can spawn inside.
 * This design can be easily extended to be 3 blocks high - simply place redstone dust on top of the blocks with redstone torches underneath.