Repeatedly climbing up stairs or ladders can be very time consuming and finger-straining. With the power of pistons, you can make an elevator that is capable of taking you from bedrock to the height limit in 12 seconds. Simply flip a lever and you’ll arrive at your destination in seconds.
Place another piston facing upwards diagonally behind the starting piston.
Place a sticky piston behind the piston facing it.
Place two blocks beside the two pistons. I used cobblestone, but any type of block would work here.
Repeat this alternating pattern of pistons and blocks as high as you want the elevator to go.
On the side, place two blocks with a redstone repeater facing towards the lever. The repeater should be next to the upwards facing piston. The two blocks can be any solid block, except glass.
Place two repeaters, with one facing the sticky piston and the other behind the blocks placed in the previous step. The repeater facing the sticky piston should be set to the maximum delay.
Connect the repeaters with redstone to the lever in the front.
Mirror the redstone set up on the other side of the elevator, one level above the other side. The structure essentially has a staggered design on each half, with the redstone on each mirroring that of the other side.
Place a repeater leading up a block to the next level. The repeater should be set to a 1 tick delay.
The next level should have three repeaters. The left repeater leads up to the next level and has a 1 tick delay. The center repeater leads to the same block-repeater-block layout beside the piston. The right repeater faces the sticky piston and has a 1 tick delay. Alternate the first floor and second floor layouts all the way up the elevator on both sides.
Place a repeater on the left side to give it a slight delay behind the lower side.
Place a facade in front of the elevator, or else you will fall off. Using glass gives a nice view as you ascend.
Make sure to stand in the center of the two blocks. Flip the lever to go up. Before your first trip up, you should build a pool that you can jump down into from the top. The pistons will stay in place until the lever is turned off. You can alter the design and add in a delay so that a button can be used instead.