Summary of this Step

1.Add a Linear-Motion FB, Motion FB, and Motion-Dimension FB to specify the motion of the Tool-Part.
btn_delkeywordVideo of this Step


btn_delkeywordAdd a Motion Dimension FB to the Slide-Joint


STEP 1: Add a Motion-Dimension FB


1.Mechanism-Editor: Click Kinematic-FB toolbar > Add Motion-Dimension FB

The Command-Manager tells you which elements to select.

Click a Slide-Joint or Pin-Joint; a Green Line or Point; a Blue Line or Point.


2.Mechanism-Editor: Click the Slide-JointRed-14-1b  | Click the narrow rectangle or the wide rectangle
3.Mechanism-Editor: Click the start-PointRed-14-2 of the CAD-Line*
4.Mechanism-Editor: Click the start-PointRed-14-3 of the Line




5.Click OK-tiny-11-15 in the Command-Manager.


5.Right-Click the graphic-area

The Motion-Dimension now defines the distance between PointsRed-14-1bRed-14-2 in the Slide-JointRed-14-3 (see Red-14-1bRed-14-2Red-14-3 in image above)

The Motion-Dimension FBRed-14-4 is in the graphic-area (see Red-14-4 in image below)

The term we use for the sliding Part is a Slider.


Edit the Base-Value of the Motion-Dimension. It defines the value of the Motion-Dimension when a wire is not connected to its input-connector.

STEP 2: Open the Motion-Dimension dialog-box
1.Mechanism-Editor: Double-click the Motion-Dimension FBRed-14-4

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1.Mechanism-Editor: Right-click the Motion-Dimension FBRed-14-4 icon
2.Mechanism-Editor: Click Edit ElementRed-14-5 in the contextual-menu.

- or :  See How to open a dialog-box


The Motion-Dimension dialog-box opens.

STEP 3: Edit the Base-Value
1.Motion-Dimension dialog-box: Enter Base-ValueRed-14-1b = 40mmRed-14-6
2.Click the Enter key on your keyboard
3.Click OK-tiny-11-15 to close the dialog-box


btn_delkeywordAdd a Linear-Motion FB and a Motion FB


STEP 1: Add two Function-Blocks to the graphic-area

These Function-Blocks are easy to add to the model.

1.Mechanism-Editor: Click Kinematic-FB toolbar > Add Linear-Motion FB | and then click the graphic-areaRed-14-1b
2.Mechanism-Editor: Click Kinematic-FB toolbar > Add Motion FB | and then click the graphic-areaRed-14-2
STEP 2: Connect two Function-Blocks
1.Mechanism-Editor: Hover + mouse-button-down on the output-connector of the Linear-Motion FB
2.Mechanism-Editor: Drag your mouse to hover above the input-connector of the Motion FB
3.Mechanism-Editor: Mouse-button-up.

Do again to join the other two Function-Blocks:

4.Mechanism-Editor: Hover + mouse-button-down on the output-connector of the Motion FB,
5.Mechanism-Editor: Drag your mouse to hover above the input-connector of the Motion-Dimension FB
6.Mechanism-Editor: Mouse-button-up.

The three Function-Blocks are connected with wiresRed-14-3Red-14-4

Now, the motion-values at the input to the Motion-Dimension FB add to the Base-Value parameter that you specify in the Motion-Dimension dialog-box.



btn_delkeywordDesign a New Motion in MotionDesigner
MotionDesigner: Default Motion

Default Motion

STEP 1: If necessary: Visibility toolbar > Show MotionDesigner to show MotionDesigner

The Default Motion

You can link the Motion FB to any motion name that is in MotionDesigner.

The default motion has four SegmentsRed-14-1bRed-14-2Red-14-3Red-14-4. The segments make a Rise-Dwell-Return-Dwell type motion.

The Rise-SegmentRed-14-1b is from 0 to 90.

The Return-SegmentRed-14-3 is from 90 to 0

The units of the Y-axis are mm or degrees.

MotionDesigner : File toolbar

File toolbar

Usually, the default motion is not the motion that you need.

STEP 2: Add and rename a new MotionRed-14-1b
1.MotionDesigner: Click File menu > Add new Motion

There is now a new motion name-tab - called Motion1

MotionDesigner: Motion name-tab

Motion name-tab

2.MotionDesigner : Click the new Motion name-tabRed-14-2 to make it the active motion.



MotionDesigner: Edit toolbar


3.MotionDesigner : Click Edit menu > Active-Motion-SettingsRed-14-3


MotionDesigner : Active-Motion Settings

Active-Motion Settings

4.MotionDesigner : Active-Motion-Settings dialog : Motion tab > Motion Name > Motion-Name:

Enter a new name Tool-MotionRed-14-4

Press the ENTER key on your keyboard.


STEP 3: Edit the Motion to give a Rise of 50mm

Review : Tutorial 2: Introduction to the Flexible Polynomial Segment OR ...

1.Click: Blend-Point & Segment Editor toolbar > Open Blend-Point Editor
2.Blend-Point Editor : Click Select Next Segment or Select Previous Segment, to make Segment 2Red-14-5 the Selected-Segment
3.Blend-Point Editor : Enter : End-Position Box = 50 (from 90) , Click the ENTER key on your keyboard
4.Blend-Point Editor : Click Select Next Segment  to make Segment 3 the active segment
5.Blend-Point Editor : Enter End-Position Box = 50 (from 90) , Click the ENTER key on your keyboard
6.Blend-Point Editor: Click OK-tiny-11-15 to close the Blend-Point Editor
btn_delkeywordLink 'Tool-Motion' to the Motion FB


STEP 1: Edit the Motion FB to link it to the Tool-Motion
1.Mechanism-Editor: Double-click the Motion FB or see How to open a dialog-box
2.Motion FB dialog-box : Click the Select-Motion drop-down
3.Motion FB dialog-box : Click Tool-Motion
4.Motion FB dialog-box: Click OK-tiny-13-17 to close the dialog.
STEP 2: Run the Model to watch the new motion
1.Run toolbar > Cycle

- or -

1.ALT+C short-cut key combination


Save your Mechanism

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