Buckbeak's Flight (Harry Potter and the Hippogriff)
Published on November 4, 2016
With the help of littleBits, you can re-enact the scene of Harry Potter going for the ride of his life on his new friend, Buckbeak the Hippogriff!
Using only components from the Gizmos & Gadgets 2nd Edition Kit, you can use a smartphone to fly a Lego creature through the sky by dangling from a string.
The circuit is a bit like a modified version of the BitBot circuit, except it only uses one Bluetooth LE component, and uses the the motors/wheels together to roll across a string in one direction. Start with the battery and power components, and connect them to the Bluetooth LTE component. Next, connect a wire to two DC motors in series, facing at each other. Set them to opposite directions so that when they spin, they are both spinning in the same direction. Finally, put these on the mounting board to hold it all firmly in place, and use some tape to keep the battery from swinging around.
The whole thing works by having the motors turn a wheel in one direction. The speed that your creature flies at depends entirely on the size of your "wheel". As you can see in our video, we started by using a tiny Lego wheel that was slanted inwards to provide balance and security to keep the wheel from sliding off the string. That first version moved nice and sloooooow. Next, we taped the big wheels that come in the G&G kit together, and used some thick strings to make a track to safely roll on. With that setup, the creature REALLY MOVES.
Next, we made our Lego version of Harry Potter's friend Buckbeak, the Hippogriff. For added fun, we drew Harry himself waving his wand with his hair blowing in the air on some paper, cut him out and placed him rather precariously on Buckbeak's back.
Finally, for scenery, we printed out a picture of the lake in front of Hogwarts, extra large (4 sheets wide by 2 sheets tall), and taped them all together. Hurray!!
Duration: 1 hour