Split Worm Gear
To get a better print out of the Davinci 1.0 I split the worm gear in half and then printed the two halves flat on the bed. This gave me very good gear teeth. Then I used acetone to glue the two halves together.
Details are in my YouTube Video:
http://youtu.be/OPsExJTtYv4
I also added the shaft I created to insert into the ring gear.