How do I edit the End of the Last Segment?

A question that is frequently asked is:

How do I edit the 'End of the Last Segment?

It is easy!

First, make a note of two types of motion:

Non-Progressive: The position at the end of motion (last segment) is the same as the start of the motion (first segment)
Progressive (Indexing): The position at the end of the motion (last segment) is NOT the same as the start of the motion (first segment).

See Also: Tutorial 1: Indexing Motion

Progressive

MT-Motion-PositionOnly

Definition:

The Position at the end of the last Segment The Position at the start of the first segment.

Do this:

1.Click above or below the left most SegmentRed-14-1b to make it the Selected-Segment.

The left-most Blend-Point is also the selected or 'active' Blend-Point.

2.Start the Blend-Point Editor

Note: As always: the Blend-Point Editor edits the:

End of the Previous Segment (when the left-most segment is the Selected-Segment, this is the end of the motion).
Start of the Selected-Segment (when the left-most segment is the Selected-Segment, this is the start of the motion).

The image below shows default settings of the Control Button in the Blend-Point Editor for the FIRST SEGMENT.

The Match Control Button (middle) is Do not Match

The End Position and Start Position Control Buttons (left and right of math) are : Specify

We can edit and specify different Position values at the Start (of the Selected-Segment) and the End (of the previous & last segment).

Blend-Point-Editor - Postion Controls - Default First Segment

Blend-Point-Editor - Postion Controls - Default First Segment

MT-Motion-PositionOnly-Non-Progressive

3.Edit the Start and End Positions to be two different values.

In this case, I have changed the

End of the Previous-Segment to be -30mm (THE END OF THE MOTION)
Start of the Selected-Segment to be +30mm

In the Blend-Point Editor, below, you can see the two different Position values.

Blend-Point Editor: Differnt Positons - Progressive

Blend-Point Editor: Differnt Positons - Progressive

Non-Progressive

MT-Motion-PositionOnly

Definition:

The Position at the end of the last Segment = The Position at the start of the first segment.

Usually, the Velocity and Acceleration at the start and end are also the equal.

Do this:

1.Click the above or below the first SegmentRed-14-1b to make it the Selected-Segment.

The left-most Blend-Point is also the selected or 'active' Blend-Point.

Blend-Point Editor: Differnt Positons - Non-Progressive End of Motion = Start of Motion

Blend-Point Editor: Differnt Positons - Non-Progressive
End of Motion = Start of Motion

MT-BPE-Posonly-EndEqualsStart

2.Start the Blend-Point Editor
3.Click the Match Control Button (middle) so it is : Match (as above)
4.Edit the End Positions

Because the Match Control-Button is active, the Start Position must equal the End Position.

Tutorials and Reference Help Files for MechDesigner and MotionDesigner 14.2 + © Machine, Cam, Mechanism, and Motion Design Software by PSMotion Ltd