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About this Product
Designed by BirdBrain Technologies and Rich Juchniewicz for the Solarbotics GM8 motor included in the Hummingbird Robotics Kit. Will fit the D-shaft on any GM2/3/8/9 motor. Make sure to print it flat side down.
We recommend the following additional parts:
O-ring for tire - http://www.mcmaster.com/#9452k153/=r1sbfx
Screw to mount wheel more securely - http://www.mcmaster.com/#90380a005/=r1sbfv