FIERCE Drone Rings (BETA)

UPDATE: http://www.thingiverse.com/thing:1882972 more rings, more fun available in the updated version. Rings are also more accurate.

Ring designed for the FIERCE Competition. FIERCE is a drone competition in Wisconsin, USA.

There are two rings, both are in beta currently. The first is a 5" ring. This ring is 1/4" thick and should weigh 5.00 grams. The next ring is 5" thick. This ring is 1/2" thick and should weigh around 10.00 grams. Later, there will be 1" and 3" rings for different drone cl