Spehro Pefhany wrote:

Bit of a long shot here.. anyone know of such a thing (as title) for
sale or otherwise available within a few months -- able to digitally
position up to maybe 10,000-40,000 lbs in all six degrees of freedom?

Accuracy requirements are not very stringent, mm not microns.

They look like this:
http://www.mathworks.com/access/help...ch_drawing.gif

or this:
http://en.wikipedia.org/wiki/Image:Gough-platform.jpg


Building your own flight simulator ride?