Assemble everything and insert the countersink plugs. I cut them flush and sand everything smooth.

Now I cut out the blanks for the center ring

I drill a 1" hole in each end to fit over the soda bottle ends

I drill a screw countersink hole on the top side

Empty the soda bottles

With the dowel cut all the pieces are made

I made a tool to hold the center rings to form the shape

First I cut out the blanks and drill the lathe chuck recess and the three leg inserts.

I spray paint all the bottoms and dowels

I smoothed the center out and made a recess for the soda bottle to fit in.

I made a tool to cut the soda bottles

I drill a hole through the center of the dowel insert recess

I cover the soda bottles for finish spray coat. Spray the first coat and let it drys over night.  Sand it in the morning and spray second coat to dry over night.

Now I fit check all the parts

I smooth the edges on the lathe

Finished

Using the adjustable Chuck I made to hold the other side of the disc and mark the diameter for the soda bottles.

I run the blanks through the thickness sander to make even thickness

I cut the plugs for the screw countersink holes

I use a dial indicator true up disc on the lathe.