Electric Motor
Description
This is a possibly-printable electric motor. The motor can be operated as a DC motor or a stepper motor, depending on how you set it up. We built the motor by casting plastic and metal parts, but most of the parts can probably be built with a laser cutter or a Reprap/Cupcake/Fab@home type machine. It runs at about 400rpm at a voltage of 6V and a current draw of 7A (yes, seven amps). You can see a video of the motor in operation at http://www.youtube.com/watch?v=XSAof007cS4 A video of the first prototype, which is easier to make, is at http://www.youtube.com/watch?v=cHML3gVQ-uU For more info, also check out our paper Towards cyclic fabrication systems for modular robotics and rapid manufacturing, by M.S. Moses, H. Yamaguchi, and G.S. Chirikjian. Proceedings of Robotics: Science and Systems, June 2009. https://rpk.lcsr.jhu.edu/Publications#Robotic_Self-Replication Before you try to make the motor, you should understand what it is and is not. *It IS* An experimental design that you can build, try out, and hopefully improve so it does something useful for you. *It IS NOT* An inexpensive alternative to an off-the-shelf motor. If you need a motor you can put in your project, go buy a motor. This motor is very inefficient, produces low output power, and takes a lot of work to build.
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