We will not design the tool. We will only add the Rocker to the sliding-part.

STEP 1: Edit the sliding-part

STEP 2: Add a vertical Line

See the image to the left.

STEP 3: Add a Part

STEP 4: Add a Pin-Joint

See the image to the left

STEP 5: Add a Motion-Dimension FB so that the Part is now a Rocker

STEP 6: The angle of the Rocker relative to the vertical Line is 135º.

STEP 7: Rename this Part to Follower.

We now want to synchronize the Motion of the Follower with the Motion of the sliding-Part.

We want a Slot Cam to rotate the Cam-Follower.

We must add a  sketch and Profile to represent the Cam-Roller Follower

STEP 8: Edit the Rocker, renamed as Follower.

STEP 9: Add a Line and Circle, as indicate to the left.

STEP 10: Close the Part-Editor

STEP 11: Add a Profile. Use the Circle.

We can rename the Circle Profile to Cam-Roller Follower.

A Measurement FB measures the distance between sketch-elements

In this case, we will measure the distance from a stationary sketch-element in the Base-Part to a moving sketch-element in the sliding-part.

STEP 1: Add a sketch-element to the Base-Part

1.Edit the Base-Part

2.Part-Editor: Add a vertical Line

3.Exit the Part-Editor

STEP 2: Add a Line to the sliding-part:

1.Edit the sliding-part

2.Part-Editor: Add a vertical Line

The Line is vertical, from the start-Point of the sliding-part.

3.Close the Part-Editor

STEP 3: Add a Measurement FB to measure the perpendicular distance between the two Lines

1.Click Kinematic FB toolbar > Add Measurement FB

2.Mechanism-Editor: Click the Point at the top of the Line in the Sliding-Part.

3.Mechanism-Editor: Click the Line in the Base-Part

4.Mechanism-Editor: Click the graphic-area

5.Run toolbar > Cycle (or ALT+C)

The two Lines should not move past each other as you cycle the model. If they do, move the Line in the Base-Part more to the left.

STEP 4: Add a Graph FB to find the range of the motion.

1.Click Kinematic FB toolbar > Add Graph FB  | then click the Graphic-Area.

2.Mechanism-Editor: Connect a wire from the Measurement FB to a Y-input of the Graph FB

The Measurement range in my model is: Minimum = 20.000mm; Maximum = 221.44mm

You can see the Maximum and Minimum values if you open the Graph Settings from the Graph FB.

Graph Settings dialogs > Y-axis | Minimum and Maximum values.

STEP 5: Add a Motion FB

1.Click Kinematic FB toolbar > Add Motion FB | then click the graphic-area.

2.Edit the Motion FB to open the Motion FB dialog-box

3.Click the Select-Motion drop-down arrow and select the Rocker motion in MotionDesigner

4.Close the Motion FB dialog-box

5.Connect a wire from the output-connector of the Measurement FB to the Motion FB.

In the image, the Red lines/arrows indicate the range of output from the Measurement FB (20 up to 220 down to 20). This is also the input, or X-axis, to the Motion FB. Thus, the output from the Motion FB is limited to those values in Blue on the Y-axis.

STEP 6: Connect the Function-Blocks

1.Connect a wire from the output-connector of the Motion FB to the input-connector of the Motion-Dimension FB (Rocker).

Note: The motion-units from the Measurement FB are NOT important. It is the number value provided to the Motion FB that are important.

STEP 7: Add the 2D-Cam

1.Click Machine elements toolbar > Add 2D-Cam

2.Click the Base-Part

3.Click the Follower Roller

MechDesigner adds the 2D-Cam to the Base-Part / Machine Frame.

Notes:

•If the X-axis motion of the Slot Cam has a range greater than 360 units, then edit the motion in MotionDesigner to increase the X-axis to be greater than 360. Remember, the units of the Motion FB X-axis are dimensionless.

•It is best to make sure the Measurement FB does not output a negative value.

•You can use a Gearing FB to 'scale' or 'shift' the output of the Measurement FB to suit the motion and the requirements of the Stationary Cam.