rope comunicator

[lakkie]

small idea,

the idea will come handy in elevators

the idea consists out of 2 pulleys with a rope in between, If the lever in the lower pulley is pulled, then its pulled in the top one too and vica versa, and so would trigger redstone on/off.

this would go horizontal and vertical if possible

[Azdoine]

Or lenses.

[Urian]

Lenses already do this. Locked.