Prepare the Sliding-Part

We add a Slider, and a rotating Cam to move the Slider as a Translating-Follower.

tog_minusPreparation 1A: Add a Part, Add a Sketch to the Part, Add a Line to the BasePart

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STEP 1: Add a Mechanism, Part and a Sketch for the Tool-Part.

Then, in the Mechanism-Editor:

1.Model-Editor: Click Model toolbar > Add Mechanism | Click a Plane

You will jump to the Mechanism-Editor

2.Mechanism-Editor: Click Kinematics toolbar > Add Part | Drag to add a Part.

 

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3.Mechanism-Editor Edit the Part.
4.Part-Editor: Add a similar sketch in the image to the left. The sketch must be a sketch-loop.
5.Close the Part-Editor

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STEP 5: Edit the Base-Part
STEP 6: Add a Line to the Base-Part, and a dimension.
STEP 7: Close the Part-Editor.

 

The Base-Part is a kinematically-defined Part. It is a Green Part.

The new Part is not yet a kinematically-defined. It is a Blue Part.  It is also called a Free-Part.

tog_minusPreparation 1B: Add a Slide-Joint

Icon-AddSlideJoint

STEP 1: Click Kinematic-elements toolbar > Add Slide-Joint

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STEP 2: Click the CAD-Line along the Blue Part (the CAD-Line is Red in the image).
STEP 3: Click the Line in the Base-Part - see mouse-pointer in the image

 

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To remind you: the Symbol of the Slide-Joint is:

1.Two rectangles that extend along the full length of each Line that you select to add the Slide-Joint.

In this image, the:

a thin rectangle - which we can imagine as the Slide-Rail
a wider rectangle (- which we can imagine as the Sliding-Block
2.A small arrowhead at the start-Point of one of the two Lines. The arrowhead is in the positive direction of the Slide-Joint.
tog_minusPreparation 1C: Add a Slider

Icon-FB-MotionDimension

STEP 1: Kinematic-FB toolbar > Add Motion-Dimension FB.

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Reminder: You can add a Motion-Dimension FB to a Pin-Joint or a Slide-Joint, to make a Rocker or Slider respectively.


The Command-Manager has three selection boxes:

STEP 2: Click the Rectangular symbolRed-14-1b of the Slide-Joint.

When you select a Slide-Joint as the Element #1

Element #2 must be a Point in a Green Part
Element #3 must be a Point in a Blue Part

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STEP 3: Click the start-PointRed-14-2 of the Line in the Green Base-Part
STEP 4: Click the start-PointRed-14-3 of the CAD-Line in the Blue Part
STEP 5: Right-click - to complete the command, close the Command-Manager, and add the Motion-Dimension FB.

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Now, the Added-Part is Green and a kinematically-defined Part. We call it a Slider.


STEP 6: Double-click the Motion-Dimension in the graphic-area
STEP 7: Motion-Dimension dialog-box | Enter Base-Value = 30(mm)

Note: To drag / move in the graphic-area, the:

Motion-Dimension FB :

 

DRAG the icon of the Motion-Dimension FB

Motion-Dimension :


CTRL+DRAG the icon of the Motion-Dimension FB

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Add the Function-Blocks and connect:

STEP 8: Click Kinematic-FB toolbar > Add Motion FB and the graphic-area
STEP 9: Click Kinematic-FB toolbar > Add Linear-Motion FB and the graphic-area
STEP 10: Connect the Function-Blocks.

If you cycle the model (ALT+C ), the Slider moves with the default motion of 90mm. As its Base-Value is 30mm, it will move from 30mm to 120mm to 30mm with each machine-cycle.

tog_minusPreparation 1D: Add Cam-Roller and Cam-Shaft

We rotate a 2D-Cam to drive the slider back and forth.

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Add the sketch for the centre of a cam-shaft to the Base-Part.

STEP 1: Edit the Base-Part
STEP 2: Geometry toolbar > Add LineRed-14-1b, approximately where you want the centre of the cam-shaft.
STEP 3: Constraints toolbar > Add Horizontal to the Line

You can see the new Blue Line at the bottom. It is Blue because we have not yet specified its Length.

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We can add to it a bracket to support the Cam-Roller.

The Cam-Roller is a circle of Radius 90mm

STEP 3: Edit the Slider Part
STEP 4: Geometry toolbar > Add CircleRed-14-2 to represent a Cam-Roller
STEP 5: Exit the Part-Editor

 

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STEP 3: Solids toolbar > Add Profile
STEP 4: Click the CircleRed-14-3

This is the Cam-Roller.

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Add a Cam-Shaft that rotates one time per machine cycle. This is Tutorial 1.

Use the Line in the Base-Part as the centre of the cam-shaft.

STEP 5: Click Kinematic elements > Add PartRed-14-4 | Drag in the graphic-area to add the Part
STEP 6: 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 7: Click Kinematic FB > Add Motion-Dimension FB | Click the Pin-Joint, the Line in the Base-Part and the CAD-Line along the Part.
STEP 8: Click Kinematic FB > Add Linear-Motion FB and the graphic-area.
STEP 9: Connect the Motion-Dimension FB and the Linear-Motion FB
tog_minusPreparation 1E: Add 2D-Cam to move the Slider

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Add the 2D-Cam

STEP 1: Click Machine elements > Add 2D-Cam.
STEP 2: Click the Cam-Shaft
STEP 3: Click the Cam- Roller
STEP 4: Click OK-tiny-13-17 in the Command-Manager.

The new 2D-CamRed-14-5 shows in the graphic-area.

If you cycle the model, the 2D-Cam rotates one time as the Slider moves one motion cycle.

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