Thread: 3-axis skull with eye servos

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Hey all:
I've finally made it, I'm in the 3-axis club!!

Took forever to get the eyes working but I got it done just in time for the big day.


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OK so I guess I don't know how to imbed YouTube stuff.

Heres the link

YouTube - Halloween 3-axis skull



Don

Congratulations! You did more than join the 3 axis club. You joined the 3 axis club with EYES!
Looks fantastic! Good job!

OH Man! That rocks!! How long did that take you?!?! What do you use to control the servos?

Originally Posted by WindyCityCouple

OH Man! That rocks!! How long did that take you?!?! What do you use to control the servos?

There's a bunch of us on the forum here that have been working on these things all summer. The eyes took forever!

If you are interested, look in the "My 3-axis skull...in progress" thread, it explains the whole process in detail, but it's a loooooooooong read!!

Thanks
Don

Like the eyes,have to post some pics on the eyes. I think that is the next jump on the 3 axis skulls.The 3 axis skull & voice track movement came out great.

Frosty, 'be a excellent display of electronitude, an' a worthy member o' any graveyard or pirate crew.. well done, mate..

Congrats on a nice job

Originally Posted by Frosty Don

Hey all:
I've finally made it, I'm in the 3-axis club!!

Took forever to get the eyes working but I got it done just in time for the big day.


<object width="425" height="350"> <param name="movie" value="http://www.youtube.com/v/f8hKJYwDTQQ"> </param> <embed src="http://www.youtube.com/v/f8hKJYwDTQQ" type="application/x-shockwave-flash" width="425" height="350"> </embed> </object>

GREAT JOB !!!! Now for the question, how did you do the 2 axis movement on the eyes? Again it looks GREAT.

Hopefully you will reveal how you did the eyes.

I presume you used two more servos. Likely small ones.

I had a thought. What if you had a metal rod attached to self centering eyes. Instead of servos. Place a ring of small electromagnets around the rod. By providing current to the magnets in varying voltages the eyes would be infinitely controllable. Plus they could respond much faster. You could even have each eye with it's own rod and magnet aray. Then you could do lazy eyes. Cross eyes. Splay eyes. Of course you would be using quite a few channels.

I am just getting into this electronics aspect of props. Can these programmers provide variable dc voltage in the 12 volt range? And can that voltage go into a negative as well on the channel. The reason I ask this is because you might get away with only three electromagnets if the rod was magnetic as well. The electromagnets would provide either a positive field or negative field which would attract or repel the rod.

Spinman