Pistons!

[Keatonian]

So, If you have an anchor and a sphere that is 1 click down and left from 1x1 size, and they are 1 space away from each other, which kind of pistons and what attributes on the anchor should I have to have the sphere rotate?

And, just a quick question, is there any way to make switches follow a moving object? I don't think so, besides have its sides push the switch along.

[Jonathan_NL]

http://home.filternet.nl/~eo000199/jonathan/gish/simplepistonrotation.png" target="_blank">The simple way

From only one side or additionally connected to the other sides of the circle will work as well, but the former doesn't work very well, and the latter is harder to explain in a screenshot.