20 staves. I ended up using 22 to form a nearly perfect circle with a 14 1/2 inch outer diameter. This involved a lot of trial and error.
Clamping the staves. Taping the ring keeps the staves in place before clamping.
Rounding the outside using a router jig mounted to my lathe. I turned the shell by hand (you would not want to turn on the lathe while the router is running!)
Truing up the edges after sanding the outside. Final outer diameter is 13 7/8 inches, which is standard for a 14 inch drum head.
A router jig for rounding the inside. I turned the shell slowly by hand while taking off rings of wood on the inside. Got it down to about 7.5 mm thick before the shell began to flex, making it very difficult to control the depth of the cut.
Sanding the inside. Final width was around 7mm.
Beveling the outside of the bearing edge at 45 degrees on my shop-built router table. The inside is a deeper bevel at 45 as well.
After finishing using an undercoat of sanding sealer, followed by several coats of gel varnish. The gel is great for this since it doesn't drip.
Drilling the holes for the lugs.
Filing down the snare bed, which allows the snares to be pulled into the bottom head, instead of resting on top.
After assembly. I purchased the maple hoops, until I figure out a good technique for making them.