A Copernican View of the Turntable System

Dgob, Just as the peritoneum was once seen as a necessity to keep the stomach, spleen, liver, intestines in their proper place. I am keeping mine.

Henry, Good one, re "Tom Henrys".

Dgob: your link has an errant period at the end of the url; delete it and the page loads.

The Mitch Cotter that I'm familiar with had a sprung suspension just like a Linn, only more springs and controlled better with foam inserts, no pneumatics involved.
The main thrust of his design was to remove all the extraneous crap from the direct drive ( motor covers and controls etc ) which removed resonances, and the use of an extremely rigid and inert aluminium/polymer laminated chassis to bolt BOTH the arm and DD motor drive.
Some great ideas embodied in that design in terms of energy control and maintaining a closed rigid loop between platter and arm.

Banquo363,

Many thanks

As always...

Dover,

Yes, and thanks for helping with my ongoing considerations, research and experimentations. Of course, Cotter's floating (aluminium/polymer laminate) baseplate and attached platter was decoupled from the main chassis. My point was that the polymer fillers and springs that sat against the baseplate served a similar function (albeit in a far less efficient way) to the pneumatic footers against the bottom of the SP10 regarding resonance control.

I didn't discuss the dismantled motor that many have already considered regarding Kenata's design etc. I do feel that the potential gains of that aspect of Cotter's approach are accommodated in a simpler way by the already noted plinth-less and pneumatic support approach, however.

Much more reflection and experimentation to be had but progress seems promising.

As always...