A Copernican View of the Turntable System

T_bone,
What you are saying and what Ralph is saying seem to me diametrically opposed?
You and I are in total agreement, in fact the postulation of this thread is that the armpod is fixed and the geometrical relationship to the platter is correct and stable.
What Ralph says is

mounting for the platter and the tower for the arm will sound their best when coupled as tightly to the non-resonant platform upon which the resulting turntable is being constructed.

Coupled TIGHTLY to the platform!!

Here I am simply going to be obstinate.
I disagree completely. There is nothing TIGHT about the spikes under my armpods and there is nothing TIGHT about the TipToes under my turntable.
The armpods and turntable are DECOUPLED from their base (the shelf) and unless I'm not comprehending properly......you agree with my methods?
Bear in mind that the RELATIONSHIPS must be completely accurate and stable.

So DECOUPLED are all these items from each other, I can physically take each armpod away and if I so desire, I may even tuck my Nude Turntable under my arm as I happily walk my pet snake?

Halcro,
I think Ralph would say we are all three in agreement. To me, a 20kg armpod spiked to the same platform that the TT is spiked to means they are strongly 'coupled', even if you can take them away and walk them with your two pet snakes, separately.

Dear Halcro, yes - it is on your front page, but not on the "Audiogon forum analog"-page.
Means that one indeed has to search for your thread - it can't be find among the current other threads in analog.
Very strange indeed.

Dear Halcro, T_bone and Atmasphere only seem to postulate opposite positions. Whether you actually mount with screws or with spikes and high weight can result in the very same.
So your spikes are actually VERY tight a coupling to the platform (even if you can move the armpods if you wish...). The coupling force is the weight of the armpod (hopefully pretty high) divided by the touching area of your spike (very small ... ) - so the resulting coupling force is pretty high.
However with the kind of weight we are talking generally in audio components, spikes are less tightly an mounting option than a good solid screw. After all it is about coupling two masses together without possible movement of one in relation towards the other.
Armpod(s) and bearing/turntable can hardly be DECOUPLED from each other in the sense that would allow relative movement of one towards the other (which would be the very sense of "decoupling"). One can incorporate kinds of resonance-barriers between them, but they will always (or better: should...) be coupled towards each other.
This can be via a shelf, plinth, skeleton - whatever.
I think T_bone, Atmasphere, (me too ...) are talking about the very same thing in slightly different word.
Cheers,
D.

"post scriptum: I wonder why this thread has to be searched for and isn't available anymore through the Analog Forum's front page ... any idea anybody ?"

Hope it doesn't have to do something with "my finding the mice" talk in my last post :) Has anyone figured this out yet?

T Bone/Dertonarm – thank you - excellent advice on the weight considerations for these footers. I hope that the talk on here about those footers doesn’t cause their market price to skyrocket now. If it does we know who to blame.