3x3 Piston Door for Bedrock 1.21.0 (or Education Edition)

Heres how to make a 3x3 piston door for bedrock edition 1.21 (or Education Edition)

Here are the items you need, your door blocks and blocks to build with are not included

Build a 3x3 hole (corners cut out) 3 blocks above the ground.

Place your sticky pistons like this (I used the RedrefinedRS texture pack in this image).

Add a Dropper, a solid block, and a observer next to the dropper. Add a 4 tick repeater facing toward the sticky piston as shown. The solid block is where your input is.

Add a normal piston below the dropper, a redstone block, 2 observers facing upward, leave a one block gap, and add another piston as shown.

Place an observer facing away from the dropper (crouch if needed) and another observer belowfacing toward the piston.

Then, 1 obsidian, and redstone dust underneath. The piston will fire, so replace the blocks on step 4 back to its original position.

Place a redstone torch next to the input block, then a piston (or sticky piston) facing downward with another torch on top of that.

Add an observer next to the redstone torch that is off.

Add obsidian on the botton left of the foor frame as shown.

Place a solid block on top of the redstone torch that is off, and then 2 redstone dust on top of the solid block and the sticky piston.

Place glass and more redstone dust.

Then, slap a 3 tick repeater and a solid block.

Place 2 solid blocks with redstone dust, and 3 glass with redstone dust as shown.

Add an observer facing downward next to the obsidian, 2 solid blocks below, another solid block on the bottom sticky piston, and 2 redstone torches (place from bottom to top).

Add an observer facing downward (dig blocks if needed) and redstone dust. (If you are out of redstone dust use a solid block instead).

Believe it or not, that is your 3x3 piston door complete! This door can break, but it will fix itself with a simple close and open. =)

With some decorating, your door is complete!