[bojan]

Originally Posted by alistairsam

not sure how much the astelco systems mount costs, but from its specs, the unguided tracking accuracy is 1arc sec / 120 mins and 0.3 arc secs guided.
industrial robots would not be too far. all would depend on what industry it was designed for and what their acceptable tolerances were.

wonder why this video comes to mind
http://www.youtube.com/watch?v=wOCmoYU6h1Q
thats a classic

and this http://www.youtube.com/watch?v=bxbjZ...eature=related

Hm...not too sure about this.

At 1m focal length, 1 arcsec equals 5um (0.005mm)
Sure there are industrial robots with this precision (semiconductor industry and some special scientific instrumentation... But why bother with positional speed??
EQ6 has +-20arsec PE in average.. guided it is better than 1".
You hardly can have much more bang for a buck than that... Industrial robot with such accuracy will cost 100x more.