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CHIBICOPTER!

CHIBICOPTER!. charles z. guan 22 march 2012 . Original Design Intent. Explore the smallest quadrotor design space using only common, inexpensive R/C model parts Better aesthetics via 3D printed monocoque airframes instead of bare PCBs or carbon rods

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CHIBICOPTER!

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  1. CHIBICOPTER! charles z. guan 22 march 2012

  2. Original Design Intent • Explore the smallest quadrotor design space using only common, inexpensive R/C model parts • Better aesthetics via 3D printed monocoque airframes instead of bare PCBs or carbon rods • Intermediate level between scratch-build and full kits – maximizing use of digital fabrication (3DP, PCB printing) intermixed with premade modules.

  3. Accomplishments • 36 gram all-up weight… 3rd-best-in-class? • Inexpensive brushless motors • Others are coreless brush DC, $$$ • R/C indoor-model component based • Not a custom all-in-one PCB with discretized sensors, microcontrollers • Doesn’t look like a board. Has landing legs and low-turbulence arms Crazy Flie 20g, 2” props NC-ONE 24g, 2” props Chibicopter 36.6g, 2.5” props

  4. Some Engineering Lessons • Things aren’t as small as they seem – get your parts first, to be certain • Ordering parts that are dependent on the dimensions of unknown components = risky • Doubletriple quadruple check routed boards for correctness before ordering multiples…

  5. Some Product Design Lessons • “Old Tektronix Scope Syndrome”… hard-to-reach reset button, power connector. • XBEE programming only – requires some knowledge of TTL serial hardware protocol to remotely program. Could be shutting out own target market?

  6. Work to Come • Near Term / appropriate for the class • Reliable flight with current hardware • Resolve the board bugs, not adding any new features • Outside of class / independently • Revise airframe design for more rigidity and flexible motor options • Compromise on size of PCB for easier assembly

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