l want to build a solid wood turntable

guitarsam, here is a trick that really brings out the magic in music since you mentioned using neodynium magnets. This works best with cartridges costing at lease a thousand dollars or more and you will need to rebalance your tonearm and possibly add more counter weight.
Take two large neodynium magnets and glue them to the body of your cartridge. This along with your shungite infused wood should put your turntable over the top.
Let me know how much you like it, I rarely ever share this secret but you seem to be really on something, errr, I mean onto something.

BillWojo

jperry took the words out of my mouth. guitarsam, you are just another kenjit-in-training, starting nonsense threads to get attention, and the  things that you say don't even have the value of being funny.
A year ago, I vowed to never respond to any of kenjit's posts, and I hereby do the same regarding yours.
By the way, you should take a course in remedial spelling.  

OK....I'll ignore all the shungite and etc., and approach this in a somewhat serious fashion....if $ is Not an object....

Waterjet a granite slab for the base.  I once approached the process with a 1" clear acrylic slab, but wasn't able to follow through with the project.

I was going to approach it with a direct-drive motor; in retrospect, a belt drive would allow for isolation, but an untoothed belt would allow for precision provided one could ensure near zero slip.

I'm a tangetal arm fan; 'nuff said.

Cart?  As said, $ no object.  Whatever one feels will make one happy...

As for support, pour a concrete column and place the above on it with sorbothane isolation pads under everything.

At the end of it all....if it doesn't make you happy....

Find another pursuit.

Sam here and i don't plan on buying a commercial cartridge that will ruin the sound.l have to build it thinking out side the box now that l have trained my brain to connect with my subconcious  i will let it do all the work because it has no restrictions + adding my vintage frequencies will put me over the top.

Oh, I forgot about the platter.....*tsk*

A machined lead alloy.  An alloy, to allow for strength but applying the mass of lead for stability....

All of this ought to be in a temp stabilized, dust free, near zero humidity cabinet that's allowed to come up to speed.

Remote cueing, of course.

An additional side cabinet to allow the lp to adjust to the 'play' space would be a +....but that goes without saying.....