Motion is an abstract concept. It is difficult to order a motion off eBay or Alibaba, for example.
For motion design software to be useful, the motion must be made 'visible' by representing it somehow. The easiest method is to plot a motion as a graph. This is what MotionDesigner does.
Another method we can use to make the motions visible is to move machine-elements in a CAD-model with the same motions as the motion graphs. This is what MechDesigner does.
There are four motion-derivatives available in MotionDesigner: Position, Velocity, Acceleration and Jerk. Each motion-derivative has its own graph.
You can use the P,V,A, and J icons in the View Toolbar, to show or hide the motion-derivative graphs.
CONCEPT 1: same X–axis for all Graphs
All of the motion-derivative graphs have the same X-axis. The X-axis scale is at the bottom of the graphs. Machine Angle, or time, increases from left to right.
Each motion graph, in each motion name-tab, can have a different X-axis scale. Most typically, the X-axis scale is in machine degrees from 0 to 360.
CONCEPT 2: SAME motion for All motion-derivatives.
The same motion is displayed, exactly above each other.
You cannot edit one motion-derivative independently of another motion-derivative.
This is because each graph plots the same motion, but at a different motion-derivative.
CONCEPT 3: motion is split into Segments
It is convenient to split the motion into segments.
You can select a Motion-Law for each segment, in the Motion-Law Selector.
concept 4: Blend-Points join the segments
Blend-Points joins the segments end-to-end. These are also called 'Nodes'.
CONCEPT 5: Segment naming conventions.
For convenience, we name the segments in the help as the:
As soon as you click a different segment, it becomes the RED Selected-Segment.