Note: I wrote this for a class
You can hear it from at least 30 feet away, a high-pitched buzz saw noise confusing you on your way to class.
“Nnnnnnnnnnnn-whrrrrrrrrrrrrrrrrrrrr-iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii!”
From what I can tell, that’s the sound of initiative. It’s also the sound of an ECO 8 model helicopter starting up.
When Miles Moody, a second-year mechanical engineering student at the University of Florida, realized his summer robotics course had been cut, he took matters into his own hands.
Using eBay to procure the parts, Moody built a remote-controlled helicopter to learn more about robotics engineering, the field he wants to get into.
“You learn a lot by just taking it apart, fixing it and putting it back together,” he said of his project.
Teaching yourself can be costly, though. He estimates that he initially spent $300 on the kit (eBay, of course), plus at least an additional $100 in parts (also eBay). In fact, he’s created a bit of a side business on the auction site, selling things like video game systems to keep his ‘copter funded.
“I’ll sell anything I can buy for cheap,” he said.
The kit was used, and an 11-year-old design, but he likes it because the company hasn’t changed it since.
“That’s German engineering for you,” he said.
It uses an electric, brushless motor, which won’t wear out; a lithium polymer battery, which is a $100 battery he got for $25 off eBay; 2.4ghz wireless control, like a cordless phone; digital gyroscope to stabilize the rear rotors (”So you don’t have to constantly adjust it yourself,” he explains); and four servos, which control the various movement aspects (tail rotor pitch, pitch of main blades, as well as forward and back motions).
“Unfortunately, I’m not that great of a pilot right now,” he said, embarrassed, hovering it a little below the lip of the stadium.
He wants to add a camera to the design, meaning Moody could potentially control the device without seeing it. He’s already attached his camera phone and taken an aerial video over the stadium lawn, peering toward Ben Hill Griffin Stadium.
While the camera would be an accomplishment in its own right, Moody has more interesting plans for his helicopter. He wants to turn it into a fully autonomous drone.
He says the military has been into rotary systems lately, not only jet propulsion. The reason is rotary systems, like his ECO 8, can hover in an area and get a 360-degree view.
He’s very convinced of the future for fully autonomous vehicles like the one he’s building. He says camera-mounted helicopters helped the search after Katrina, allowing rescuers to see inside places they couldn’t reach.
He says he wants to get into defense research, partly because his father, Joseph R. Moody, created the Grip Pod: a vertical gun grip that extends a bi-pod, currently in use by the military and law enforcement.
“I guess I’m following in my dad’s footsteps,” he said, grinning.
Eventually, he wants to use a $2,000 research grant from his National Merit scholarship in a robotics lab at UF. But first, he has to get into it.
Here’s the video from Moody’s camera phone:
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