Use the Flexible-Polynomial to define a segment that has Constant-Velocity between Two-Positions.

The Velocity is calculated from the Segment-Width and the difference between the End-Position and Start-Position.

You must make sure the Velocity at the end of the Previous-Segment is equal to the velocity of this segment.

The Acceleration and Jerk Values at the start and end of the segment are zero.

Start-Position

The Start-Position usually flows from the End-Position of the Previous-Segment.

End-Position

Start-Velocity & End-Velocity

Start-Acceleration & End-Acceleration

Start-Jerk & End-Jerk

1.Use the Motion-Law Selector to select a Flexible-Polynomial motion-law

2.Select the Segment

3.Open the Segment Editor

4.De-select Velocity, Acceleration and Jerk Match (Flow) Control-Buttons

5.De-select Start-Velocity, Start-Acceleration, Start-Jerk Control-Buttons

6.De-select End-Velocity, End-Acceleration, End-Jerk Control-Buttons

7.Enter the Start-position and End-Position

8.Enter the correct X-axis values.

When the Constant-Velocity segment is one segment of a complete machine-cycle use a Gearing FB, to replace a Motion FB  - assuming a Linear-Motion FB is connected to the input of the Gearing FB.

When the Gearing-Ratio = 1 (in the Gearing dialog), the output equals its input, it increases steadily from 0 to 360.

If you enter Gearing Ratio =270/360, the output is from 0 to 270, when its input is from 0 to 360.

Thus, you can see it is easy to use a Gearing FB to output a Constant-Velocity for a complete a machine-cycle.