Okay, I need help....I’m just too retarded to figure this out on my own :) so I need to recruit the brighter minds on here :D

I have attached a jpg below

I have a skull, with a mechanical eye with 3 parts. 
Ring A - The outer orbit part (This should only rotate around the X-axis in the jpg)
Ring B - The inner orbit part (This should only rotate around the Y-axis relative part A)
Eyeball - linked directly to part B inherits all X, Y, Z
(see image)

I have ring “B” looking at a helper dummy with a “lookAt Controller” so it follows the helper.  I have the helper linked to the skull so if the skull turns the helper does too.

The problem is ring “A”
I have it linked to “B”
If I set “A” to be linked to “B” then I make it only inherit the X rotation, right.
So the dummy moves, they eye follows, ring B rotates on its relative Y-Axis, and Ring A rotates on its relative X-Axis....all is good until the skull itself rotates, then “A” won’t inherit its Y orientation from “B”.

I need a way to make “A” keeps its orientation relative the skull, but have a lookat for it that is only constrained to rotate around its X-axis.

So here is the linkage I have (this might be my issue)

Eye (linked to)-> Ring B
Ring A (linked to)-> Ring B
Ring B (linked to)-> skull
LookAt helper (linked to)-> skull

Ring B is controlled by the lookAt targeting the helper.

So in a nutshell, “How do I limit a LookAt Constraint to one axis” I have tried all the locks but the controller just rotates it anyhow.

Thank you very much for any suggestions or help you can provide.

Sincerely,
Randell Trulson
http://www.NeuronGames.com

	Attachment

Thanks dude.  I am trying it right now.  I will let you know how it turns out.  Yes this is the same issue I was attempting to script for, but I will skip the script for now and see if this does it for me.

thanks a million!

Sincerely,
Randell Trulson
http://www.NeuronGames.com

You can also use the approach used here to rig the turret of a tank:

http://joleanes.com/tutorials/

3D Studio DOS to 3ds Max 2010
Windows XP 64
NVidia Quadro FX 3700
Dual Quad Xeon, 6Gb Ram

Thanks MLB....I have it partially working, but there are still issues with it....so I will look at this tutorial and see if I can get it closer.  thx!!

Sincerely,
Randell Trulson
http://www.NeuronGames.com