![Simplest Double Extender Ever [Compact!] @selulancie](https://i.ytimg.com/vi/mm0tuNvl73U/maxresdefault.jpg)
Uploaded May 2013 | Updated September 2026, 1 week ago
So, slapped this very simple double extender together when I was derping around with Torbray on Red Blocks server. Enjoy.
So, slapped this very simple double extender together when I was derping around with Torbray on Red Blocks server. Enjoy.
![Simplest Double Extender Ever [Compact!]](https://i.ytimg.com/vi/mm0tuNvl73U/mqdefault.jpg "Simplest Double Extender Ever [Compact!]
So, slapped this very simple double extender together when I was derping around with Torbray on Red Blocks server. Enjoy.")
![Fancy-ass 3x3 door [Tutorial]](https://i.ytimg.com/vi/nHxJHm1WtmM/mqdefault.jpg "Fancy-ass 3x3 door [Tutorial]
Now you know how to make this fancy ass door.
Hint: Use comma and dot to skip frame by frame.
Edit. Realized the tutorial is not actually showing every detail. In the piston layout frame, theres a redstone torch beneath the middle bottom observer on the side of the wool.")
![1.5 Vault Doors [3x3, 3x4 and 4x3]](https://i.ytimg.com/vi/oJxwFlUZHHI/mqdefault.jpg "1.5 Vault Doors [3x3, 3x4 and 4x3]
Some doors I made together with some good folks.
thegunmaster: http://www.youtube.com/user/thegunmasterdigital
DJLennon: http://www.youtube.com/user/georgeelzy1")
![[Tutorial] Minecraft - 2x2 Mobevator + Vertical intersection](https://i.ytimg.com/vi/pWKvWRZhwfw/mqdefault.jpg "[Tutorial] Minecraft - 2x2 Mobevator + Vertical intersection
In this tutorial Ill be showing you how to make my version of the 2x2 mobevator and vertical intersections.")
![[Tutorial] Minecraft - Compact Reverse-order Device](https://i.ytimg.com/vi/qDDmwSVnaek/mqdefault.jpg "[Tutorial] Minecraft - Compact Reverse-order Device
Seen a few designs of this but as it showed up my interlocking floor device also had an reversed order function built in. So this shows it and one usage of that (proof of concept) and also shows what it initially was made for.")
![[Tutorial] Minecraft - Whirlwind Tunnel](https://i.ytimg.com/vi/t8Jkic3O3c4/mqdefault.jpg "[Tutorial] Minecraft - Whirlwind Tunnel
This is how I made my whirlwind tunnel.")
![[Tutorial] Minecraft - Smart/Compact Cobble Generator](https://i.ytimg.com/vi/v0YaXYRcCLI/mqdefault.jpg "[Tutorial] Minecraft - Smart/Compact Cobble Generator
Shortcuts:
0:00 Demonstration
0:45 Wiring/function
1:43 How to build it
As usual, I got inspired by PearSquirrel to attempt improving the design he shown us. But this time I actually figured out something smart for once. The smart part is that the clock which starts does not really power anything, BUT, it causes redstone updates near to the pusher piston, and making it realize it can push, causing it to become automatic again and does not rely on the clock. Its like an invisible awakening bond! (Im blabbering)
Hope you guys enjoy, thanks!")
