For halloween this year, I'm thinking of doing a costume of Mad Eye Moody from Harry Potter:
The costume is easy enough, but it really needs a working bionic eye to complete it. This is where I need some help.
I think the concept is simple enough. Id use half of a ping pong ball for the eye attached to 2 servos (one for up/down, one for left/right). The issue is mounting the servos and attaching them to the ball. I'm not quite sure how to accomplish this, keeping in mind I have to wear this "eyepatch" contraption.
I found this tutorial for a randomly moving bionic eye, which is what I want. But I can't use this guide for a few reasons: 1) Its using a trinket, not an arduino. I dont know anything about trinkets, so Id prefer to stick with what I (kind of) know in Arduinos. 2) It uses 3d printed parts. I know nothing of 3d printing, so not even sure I could find somewhere to make what I need, if it would be expensive or not. This may be an issue I can overcome with a little research though. 3) 3d printing the above mentioned parts means the eyeball bulges out significantly (see the pic in the tutorial), which isnt the look Im going for. So something needs to be modified. Maybe the ping pong ball needs to be cut smaller than a half and the "movement" of the eye would be reduced a little. Id be fine with that, if the overlook was more consistent with the photo of Moody at the top of my post.
So to recap, I can write the code to do a few simple servo sweeps to create the eye movement, but what I'm really looking for is some guidance on how exactly to mount/attach everything together into some kind of wearable piece. I can certainly add straps, and the ring around the eye, I'm specifically looking for the servo attachments and a possible "housing" for everything, if necessary. I'm not averse to 3d printing anything, but I'm a complete noob so Id need guidance on that aspect as well.
Any thoughts/ideas? Or any other tutorials or guides anywhere on how to rig something like this up? Any advice would be greatly appreciated! Thanks so much in advance!