Armature chain follow a path I'm trying to create a chainsaw type of animation using bones. I may be approaching this from the wrong direction but I would like to create a chain of bones and have them follow a path.  

I used the SplineIK constraint to create the shape but I'm not able to get it to animate correctly on the Bezier circle. 

This is about as far as I got, but I can't actually move the bones.



I'm able to get one unparented bone to move around the circle but never a chain of bones.  Any advice would be appreciated! I really hope I can get this to work!

Thanks in advance
Constraints


Consider a follow path constraint.  Which can rotate objects along the curve.
The curve hugger bones can have parents but must NOT be connected.  The cutting teeth can be connected to the hugger bones.  I assume the geometric normal bones are cutting teeth.
I do not think Spline Constraint is favorable.
Consider a conform modifier.  No rotation.
If you are really daring you might consider rigid body chain links.  Some people consider these situations unstable.