Combine a 3D-printed frame, a two-cell battery, four sets of propellers, motors, a flight controller, several other pars and a remote control, and you have a miniature quadcopter.
Elementary and high school students built their own mini-copter during the fourth and final MakerCamp hosted at the Digital Harbor Tech Center and set up by the Federal Hill-based Digital Harbor Foundation.
Watch students take their quadcopter for a test flight.
http://www.flickr.com/apps/video/stewart.swf?v=109786
A more complete look at how students pieced together this particular quadcopter — which also involved soldering several of the electronic components — is on the Digital Harbor Tech Center blog.
As Technically Baltimore reported in June, the Digital Harbor Foundation has been hosting a series of two-week-long MakerCamps this summer, where students have received crash courses in robotics, video game development, 3D printing and remote-controlled flight, the topic of this final MakerCamp.

Message to Rand Paul: these aren’t the drones you’re looking for. Photo credit: Digital Harbor Foundation.
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