Redstone, Rails, and More - The Ultimate Player's Guide to Minecraft - page 197

1. A double-stack of sticky pistons
2. The second stack of sticky pistons required for the opposite slider
3. Block with button attached
4. Blocks for the door—I've used iron for that fortress look
5. Redstone torch attached to button block forming an inverter
6. Start of redstone wiring
7. The wiring must step around the block beneath the button's own space so it
isn't fired when the button is pressed
8. Place the trail up and onto the block behind the second piston stack
FIGURE 9.15 Place these components to create the mechanics of a sliding door.
I've shown the wiring at ground level for simplicity, but bury it the same way as for the
wooden doors example, and then build up the rest of the entry way to hide everything.
Figure 9.16 shows one example, but feel free to achieve any look you like. Piston doors
provide quite an entrance into a fortress buried into the side of a hill, where you can place
natural terrain to hide the inner workings. You can also flip the workings 90 degrees and
make doors open vertically, or add some vertical doors and pistons on top of the horizontal
ones to create a three-way iris.