Well, here's something that could be indexed under multiple 'Topics'
Sherline Rotary Table, with Brian Mumford's Stepper Controller, being marketed as a photographic 'Motion Control' system:
**LINK**
For those who don't know of him; Mr Mumford is something of a genius inventor [probably best known for his MicroSet horological timing device], and it's well-worth browsing his site.
MichaelG.
Edited By Michael Gilligan on 14/10/2015 08:59:02