This instructable shows an alternative way to make these rings which greatly simplifies the cutting and assembly of the pieces. Using a laser cutter, each piece is created to resemble a jigsaw piece. This not only provides the precise angle needed between pieces, but eliminates the need to clamp the pieces when gluing them together to create each ring.
This instructable shows how to make the segmented turning blank itself, but not the process of turning it on a lathe to make the final piece. That is a likely topic for a future instructable...
I made this at TechShop www.techshop.ws
Step 1: Materials and Equipment
Laser cutter (my TechShop has a Trotec Speedy 300)
150 grit sandpaper
~24 square inches of 1/4" thick light wood (poplar)
~24 square inches of 1/4" thick dark wood (walnut)
This instructable assumes some basic familiarity with CorelDRAW and a laser cutter.