Ah, i knew i should just draw a picture:If your hand is already in the Raptors head, why couldn't a finger do the blinks? In a puppet, the blink mechanism can just be a key ring on a string you slide a finger in and pull down when you want a blink. This way the blinks become more of the performance rather than just automated and mechanical.
Otherwise, if you want to use servos, Stan Winston has a series of videos "How to Build an Animatronic Head" that could be really helpful. I think the second one covers eye mechanisms. When I am trying to learn tips and techniques, I think Stan Winston videos are amazing and well worth the cost.
It's a shame that the Adam Savage videos are down. I was learning a lot from them.
I'm looking forward to seeing more of your progress! Your project is very ambitious!
As you can see, my hands will be occupied with being hands XD One of my coworkers happens to know of a local maker space I might be able to tap into for resources regarding my mechanical questions, so that part of things may essentially be taken care of! I might also contact one of my local libraries, which not only has a maker space but should be able to direct me to others which might be a bit closer to where I live. So, more things to look into, but I feel like I have a direction to go in.
And yeah, 'ambitious' is one word for it, lol. I've had this idea since late middle school and have been slowly piecing it together ever since; it's definitely been a slow burn project. It's going to be so cool when it's done though, and that's what keeps me going! I'm glad other folks think it's cool too ^^