[DICK "chipncut" CAIN]

Here's my explanation.
I made a 20 sided cylinder with 3/4" material. In
order to get the approximate size boards for the circle, you divide the circumference by 20. To find the bevel angle of each board you divide 20 into 360, which gives you 18 degrees. Then divide that by 2 & get 9 degrees. That's the angle of the cut on each edge. Make sure the bevel angle is perfect, or you won't get good joints. Then you lay out two strips of duck tape on your bench, a few inches longer than the circumference. The lay out your strips tightly & roll the into a cylinder for a dry fit. If your joints fit good, unroll & apply polyurethane glue & reassemble & clamp, making sure it is round. Then you temporarily Glue a 1 x 2" across the top, with a glue gun & route out a 1/8" deep rabbet on the inside of top for 1/8" plywood. Then you set your router circle jig to cut to size the 1/8" ply top. Remove temporary 1 x 2 & then glue on the top.
I used a belt sander to round the exterior making a slight taper like a barrel. The round dots on the drum are just decorative. I made them with a plug cutter.
I hope this will help. They also make router bits for cutting various angles for polygons with a router table.
You may be able to find more info for making cylinders on the internet.
Dick

[whitecree]

I would have just split a log in two, hollowed both halves, then glued the pieces back together.



I think your method might work out with less hassle...

[DICK "chipncut" CAIN]

[quote=whitecree]I would have just split a log in two, hollowed both halves, then glued the pieces back together.

You have a good attitude but, whatever works.
"different strokes, for different folks"
Dick

[Thor]

That's fine work done with a lot of patience and skill. Thanks for posting the pictures.
Thor