Even when you bear a passing resemblance to the paranoid Auror of the Harry Potter universe, you still really need that wonky and wandering prosthetic eye to really sell that Mad-Eye Moody cosplay, and this one is pretty impressive.
Of course, there’s more to the [daronjay]’s prosthetic peeper than an eBay doll’s eye. There’s the micro-servo that swivels the orb, as well as a Trinket to send the PWM signal and a pocket full of batteries. The fit and finish really tie it together, though, especially considering that it’s made from, well, garbage — a metal food jar lid, a yogurt cup, and the tube of a roll-on antiperspirant. Some brass screws and a leather strap evoke the necessary Potter-verse look, and coupled with what we assume are prosthetic scars, [daronjay] really brings the character to life. We think it would be cool to have the servo eye somehow slaved to the movements of the real eye, with a little randomness thrown in to make it look good.
Marauder’s maps, wand duels, Weasley clocks — the wizarding world is ripe for creative hacking and prop making. What’s next — a Nimbus 2000 quadcopter? Please?
11 thoughts on “Servo-Controlled Eyeball Makes A Muggle Moody”
Wow! great results! when I first read the title, I worried about speed of the eye, but he implemented it in such a way so the eye moves quickly! How have other people made their robotics move quickly and smoothly?
If you like the mechanical motions that move naturally check this video: https://www.youtube.com/watch?v=7x8tc6tGQ6I
End result looks really cool, though I wonder why he doesn’t have it moving more often? Seems like a good part of the video was him just waiting for the thing to move again.
If I recall my Potter-lore correctly, his eye is supposed to be constantly darting around and looking for trouble, so it seems a fairly constant twitching around would work fine with the character.
Lots of small motions there, I think it just needs tweaking so each position is at least 30, 60, some large number of degrees from the last.
Easy, just throw some vinegar in the servo’s pot or something so it goes corroded and crappy :-D
You should be able to buy one of these at the Little Shop of Aurors.
That joke was aurorble.
Maybe put an array of nine ldrs on the back and a couple of ir leds on the back so it can track the movement of the pupil to control the positioning.
“Really, I should have measured it up to be sure it was exactly centered, but instead, I just eyeballed it.
Yes I am a dad, why do you ask?”
Instructable was worth it just for that line.
Would also work well as a third eye.
wow this is so crank ….crank but goooood :D
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