Step 6D1.2: Add the Rocker and Motion

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Step 6D1.2: Add the Rocker and Motion

Prepare the Rocker

In this Step we:

1.Add a Rocker to the Slider.

2.Control the Motion of the Rocker.

tog_minusPreparation 1E: Add a Rocker to the Slider

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Edit the sketch to add a Point for the Pin-Joint of the Rocker.

STEP 1: Double-click the Part that is the slider to edit the sketch tool sketch.

STEP 2: Add a sketch to the original tool sketch.

In the sketch, we need a PointRed-14-1b for the Pin-Joint, and a LineRed-14-2 for the Motion-Dimension FB - as we will add a Rocker.

STEP 3: Close the Part-Editor

 

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STEP 4: Click Kinematic elements > Add PartRed-14-3 | Drag in the graphics-area to add the Part

STEP 5: Click Kinematic elements > Add Pin-Joint | Click the start-Point of the Line in the Base-Part and the start-Part of the new Part.

STEP 6: Click Kinematic FB > Add Motion-Dimension FBRed-14-4 | Click the Pin-Joint, the Line in the Base-Part and the CAD-Line along the Part.

STEP 7: Edit the Motion-Dimension FB

STEP 8: Motion-Dimension dialog:  Base-Value = -60

STEP 9: Click Kinematic FB > Add Linear-Motion FB and the graphics-area.

STEP 10: Connect the Motion-Dimension FB and the Linear-Motion FB

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STEP 11: Edit the Rocker - PartRed-14-3 in the image above

STEP 12: Add a Line and a Circle, as shown to the left.

STEP 13: Dimension the Line and Circle as shown to the left.

The angle of Line is 30° to the CAD-Line

The length of the Line is 100mm

The radius of the Circle is R30mm

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STEP 14: Edit the Motion-Dimension | Edit the BASE-Value to -130

STEP 15: Add a Motion FB and Linear-Motion FB.

STEP 16: Connect the Function-Blocks

STEP 17: Cycle (ALT+C) to preview the design.

You will notice the Slider moves back and forth by 100mm and the Rocker oscillate by 100º – at the same time.

Q: Why is the motion the same?

A: We have linked the same Motion in MotionDesigner to the two Motion-Dimension FBs.

tog_minusPreparation 1F: Edit the Motion for the Rocker

GST-Icon-MT-AddMotion

STEP 1: In MotionDesigner: File Toolbar > Add Motion

 

STEP 2: Use Active-Motion-Settings > Motion tab > Motion

Rename the original motion to Slider and the new motion to Rocker.

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Add a Segment and edit the Blend-Points.

STEP 3: Do Segment Toolbar > Append Segment

STEP 4: Edit X Value and Y-axis values. of the Blend-Points

X

Y

0

0

30

0

110

10

140

10

230

20

360

20

STEP 5: Edit the Motion FB that we have connected to the Rocker

STEP 6: Select Rocker to link it with the Motion FB

STEP 7: Cycle the Mechanism (Run menu > Cycle or ALT+C) before we add the 2D-Cam

 

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