Thor, or should that be Zeus?

[Chaz]

So Ive bit the bullet and bought a 'proper' probe. Its mechanical, not electrical and I want to make an arm for it like the Datron has that comes down, probes and I can then move it back in the 'up' position when not needed. Thinking to use some form of offsets to make this work.

How do I manage with an arm to rotate 180 degrees? Arduino Uno and servo? Id need a fairly strong servo me thinks ....

Thoughts?