Rollerball Car - Prints in one piece

My rollerball car can go in any direction, and 3D prints in one piece. Just break off the cones after printing, and its ready to go.
See the video at
https://www.youtube.com/watch?v=Ee6jW_EMjh8&index=4&list=PLCTMeyjMKRkrhMSOf0SD677liIG6aaZ_3
https://sites.google.com/site/richardsouthwell254/home