Thoughts On Turntable Clamps And Weights

If a stator bowl is what I think it is, you may as well redesign and replace the whole motor. And once you’ve done that, you need to address the function of any speed control mechanism. If you go deeply into that area, you may succeed in never having a functional turntable, as one problem leads to another.

Well said. A synchronous AC motor is a safer bet, so a good first step.

@bolong Indeed an elegant solution that adds $5,000.00 to the cost of a $22,000.00 turntable available for purchase on both coasts of the US of A. 
See https://almaaudio.com/ for Bergman Audio products to include the Bergman-Galder turntable with vacuum clamp. Tone arms sold separately, but you can mount four (4) of them on the table. They have dealers all over the world  https://bergmannaudio.com

A record weight or clamp should damp spurious vibrations, not try to flatten a warped disc. Have a look at the Origin Live Record Weight - The Gravity One.

The Stator Bowl, is one area of a design that has been severely scrimped on.

I have witnessed the gauge for metal used for pressing/casting that is close to a range of 1/64 - 1/8.

I have done work on rigidly bracing the base of the bearing housing and have encouraged others to adopt methods to achieve the same end.

The improvements discovered are worthy of mentioning and the reports from those that have adopted this as a method are again not to be overlooked.

As I own a 3" (75mm) Thick Board of Permali, I am in a position to have the Bowl formed as a recess in the chassis, which will not be a thin flimsy add on, prone to flexion and deflection, the Stator and other parts for the drive will be directly attached to the Permali Wood, the original bowl will be redundant.

What really matters is how the new bearing housing interfaces with the Permali Bowl and how the Platter Spindle is catered for as it passes through the Bowl and Stator and other parts of the drive.

This is to be my design for the Kaneta, as an alternative to the original motor drive being bedded into a substantial chassis.

At present there are two Kaneta designs at hand, one as a thick laminated wood chassis and the other a single P'holz Board chassis.

There is at present one electronically modified TT, at hand to the used with the two mounting methods.

Another TT will need to be a donor model to produce my Permali Chassis version, where the modified electronics can be shared to have the experience of both types. 

As an aside, I was yesterday involved in what I will refer to as a healthy conversation with my Engineer friend about Air Bearings 😎, I do like the general expressed ideas being made known.