MotionDesigner Reference

Motion Terminology in MotionDesigner


A motion is split into segments. Each segment has a duration - which we name its Segment Width.

Each segment has a Motion-Law. Many motion-laws have Segment Parameters that we apply to the mathematical function to give different motion characteristics.

Selected-Segment : the segment that is RED [default colour]. Click above or below a segment to make any segment the Selected-Segment.

Previous-Segment / Next-Segment : the segments that are immediately before and after the Selected-Segment.


There is a Blend-Point at the start and end of each Segment.

Active Blend-Point: the Blend-Point at the start [left-side] of the Selected-Segment. It has a around the diamond symbol


A mathematical function that provides the y-axis values as a function of the x-axis values. There are many different motion-laws. The motion-laws provide different motion characteristics, for different applications, with advantages and disadvantages.

See Motion-Laws

MotionDesigner: Main User Interface

Click to Expand and CollapseMOTIONDESIGNER

[Click to Expand/Collapse]

MotionDesigner 13.2 :

1s-b Toolbars

2-R-RED-15 Motion-Law

3-R-RED-15 Motion-Width [Read-Only]

4-R-RED-15 Motion Name-tab [you can add many motions to the default motion. Each motion is identified with a Motion name-tab]

5-R-RED-15 Motion Graphs [Position, Velocity, Acceleration and Jerk motion-derivatives].

6s-b Graph 'drag-handles'.

IMPORTANT NOTES - General Motion Definitions

Each motion is defined by a one or more segments, each segment is joined to a different segment with Blend-Points.

For each X-axis value there is a Y-axis motion-value.

We define the X-axis and Y-axis motion-values at each Blend-Point.

We influence the X-axis and Y-axis motion-values between each Blend-Point with the segment's Motion-Law.

We use the Blend-Point Editor:

to edit the X-axis and Y-axis motions values of each Blend-Point

We use the Segment Editor:

to edit the X-axis and Y-axis motion-values of each Blend-Point
to edit each segment's Motion-Law
to edit segment-parameters associated with each segment's Motion-Law.

See also: Motion Design Considerations  , FAQs

MotionDesigner: Toolbars



Blend-Point & Segment toolbar


Edit toolbar


File toolbar


Motion toolbar : Motion-Width & Motion-Law Selector


View toolbar

7-bigsquare   To 'Undock' and 'Redock' MotionDesigner.

Generally, I do not undock MotionDesigner.

To 'undock' MotionDesigner:

1.Move your mouse pointer to immediately below the 'Lime-Green' horizontal bar, that is above of the MotionDesigner toolbars
2.Drag your mouse

MotionDesigner moves with your mouse until you

3.Release your left-mouse button.

To 'redock' MotionDesigner:

1.Click MechDesigner's 'Restore Window' so that MechDesigner is NOT maximized.
2.Make a space to the right-side of the MechDesigner application.
3.Move your mouse-pointer to the top of MotionDesigner dialog, above the MotionDesigner toolbars.
4.Drag your mouse to the right-side of the MechDesigner application-window, until you see an 'empty box' to the right of the MechDesigner application. Then release your mouse-button.


For Information, this Help File is:13.2.340, Published on the: 16/02/2020, at 17:30

All contents may not be republished without the consent of PSMotion Ltd.


Tutorial and Reference Help Files for MechDesigner and MotionDesigner 13.2 + © Machine, Mechanism, Motion and Cam Design Software by PSMotion Ltd