Pistons are items that can push blocks when power is supplied to them through a redstone, switch or lever. It can push the block in one direction. The sticky piston is a variant of the normal piston ...

The easiest ones are probably a button or a lever, though the pressure plate and tripwire hook will make it a little more automatic. Obviously, pistons will be necessary, but so will slime blocks.

First, place 3 obsidian blocks on the first ground. This will be where your elevator stop. Repeat this one more time on the second floor. Remember that those 3 blocks on each floor need to be at the ...