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


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.



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


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


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


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



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


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


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


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.


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


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.


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.


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




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

This is the Cam-Roller.


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


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