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actually, i made this one with the highschools 3d printer, which was made by me in computer class by the original 3d printer, made by the computers teacher. im currently working on an electric bike motor that will use 3d printed circles to hold (6) #775 motors around a center axle. hard to describe, but the power rating is about 1800 watts for only $150 in the motor itself (of course, i didnt make the part that takes power and makes rotation, this is just a bigger version of what an expensive rc car uses). the goal was to make something cheap that didnt feel like it reflects the power output in the price