I have a mechanism that I am trying to creat an animation of.  I am using the Autokey funciton to record the motion as I manually move the parts.  I have several files that have good smooth motion, but recently the parts want to jump in the motion.  The part will jump when the motion starts an then finish out its motion smoothly.   Is there something that causes this? 

It seemed like the more I try to work with this the more problems are showing up.

Any pointers?

Mitch