I have a client that I am building a 72" round oak table for. They want to add a 38" lazy susan to the center of it. Id like to make it so the lazy susan is removable for cleaning. So you can lift up one side and clean underneath. Any ideas for attachment to allow for this and also any suggestions for a quality mechanism as the only one I've used is on a round table that I finish chairs on.

On the several tables like that I have made, the Lazy Susan platter was attached to a long 1-1/2" dowel that went almost to the floor. There it fit intro a bearing of sorts that held it at the right height and allowed it to pivot easily.
Pedestal tables were easier to fit this arrangement. A four legged table got and x-frame of stretchers below to carry the Lazy Susan.
Curious, will the term "Lazy Susan" go the way of Aunt Jemima or Uncle Ben? Is it the 'lazy' part that is sexist?

Had a decorator contact me this AM asking for "feathered" walnut. Its crotch, and I will always refer to it as crotch. My kids High school now has a committee exploring changing the mascot from warriors to who knows what.....I cant stand the whole pronoun thing now with younger kids. To each their own I guess but if you treat me with respect and decency, you will get it back. Keep it simple.

As far as the lazy susan- I have limited experience. I was considering using the swivel with the two mounting plates. Dont know how else to explain it- but mount one plate toa piece of 1/2" ply that I would route or recess in to the top. Easy lift up and off to clean. The base is hexagonal with the flats of the hexagon curved in section. I could build it to have a center pole. Ill have to look into the hardware.

They make a 12” round Susan with 6” round open in center of it. These also come in larger diameters and center cutout will be bigger. But if the 12” works, mount Susan to the part you want to spin on it’s bottom and then you cut a 1/4” plywood that is 6” in diameter and attach to table top with a screw centered in the table top and the plywood piece. The Susan just drops over the 1/4” plywood piece and keeps it centered in table. It’s nice to glue felt to bottom of Susan bearing.

Pete:

What I have done is to put self adhesive rubber cabinet door bumpers on the bottom of the lazy susan mechanism, which keeps it from scratching the table and also keeps it from sliding around.

I would question having permanent fixtures to attach or register the platform to the table, as that negates the flexibility of removing the lazy susan entirely should the customer no longer want it. You might consider a 38" circular inlay in the table that would allow the customer to recenter the lazy susan after cleaning, or some similar visual registration markings, assuming that the customer can't just eyeball the approximate center after cleaning underneath it. For your purpose, you might consider the hardware in the attached link.

If the platform and table concentricity needs to be absolute after cleaning, and is of the utmost importance, you might consider one of the solutions listed by others above.

Hope this helps.
TonyF

Lazy Susan Hardware