0 tick powered 4x4 circle door

Build image: 
In-game name (NO VISITORS! Must be LEARNER rank or higher!): 
0xiee
Builder name(s) and current ranks: 
0xiee Learner
Creation location: 
-328 200 2223
Machine Features: 
small and fast 4x4 circle door 540 blocks sadly uses a observer each side for the final retraction for the opening basically instant closing and very fast opening does uses unmovable blocks so it doesnt brake is 0 tick powered
How To Use: 
just turn the lever on and off thats all that is needed to be done to make the door work
Request status: 
Approved