Orbit - Trajectory - Evolvent Curve

Hi everyone,

I have 2 sweet questions for everyone...

My Sweet Question 1 -
Is it possible to determine the orbit of any one point of a partwhich moves to diffrent directions in assembly? I have to use thatorbit's sketch for making new parts.

My sweet Question 2 -
How can I sketch an evolvent curvce?

Thanks alot...
SolidworksSketching