The Segment Parameters separator is available with many (not ALL) Traditional Motion-Laws.
The actual Segment-Parameters are unique to the Motion-Law.
Their details are described with each Motion-Law.
The best way to learn about the different Segment Parameters is to experiment with their values.
Segment-Parameters with the Sine-Constant Acceleration-Cosine motion-law
The image above shows the three Segment-Parameters for the Sine-Constant-Acceleration-Cosine motion-law.
The Constant-Fraction parameter, refers to the Non-Zero Constant Acceleration, and not the Zero Constant-Acceleration.
Note: Commercial Indexers
Commercial Indexers frequently use a Modified-Sine with motion-law with 20%, 33%, 50%, or 66% Constant-Velocity of the index-period.
A period of Constant-Velocity:
•reduces the maximum velocity and a
•reduces a Cam's Pressure-Angle.
•increases the minimum width between the cam-tracks of a Globoidal-Cam, to increase the width of the rib.
In MotionDesigner, you can enter any percentage of Constant Velocity.