Usually, the motions of the cam and cam-follower are a function of the Master-Machine-Angle [MMA], even if found with inverse-kinematics.

However, the motion of the cam-follower may be a function of the angular or linear motion of a Part, and not the MMA.

When the motion of one Part is a function of the motion of a different Part, we call it Motion-Dependency.

Note: Other terms that you might know are: Linear Cam, Stationary Cam, or Ramp Cam.

Summary of this Tutorial

In this tutorial, we will design two Slot-Cams in which the motion of a cam-follower, a Rocker, is a function of the position of a sliding-part.

DESIGN 1: The sliding-part is a Slider. The motion of the Slider is at the output-connector of the Slider Motion-Dimension FB.

DESIGN 2: The sliding-part is one Part of a Dyad. We motion of the sliding-part is at the output-connector of a Measurement FB that we must add to the model.

Icon-Add2DCamSlot Cams


Step 6D1.0: Target Design

Step 6D1.1 Rotate a 2D-Cam to move a Slider

Step 6D1.2: Add the Rocker, Rocker Motion

Add the Stationary 2D-Cam...

Step 6D1.3: Add the Stationary 2D-Cam: Models that do work and those that do not!


Step 6D2.0: Target Design

Step 6D2.1: Add a Gear-Pair and Trace-Point

Step 6D2.2: Add an RRP Dyad and Rocker

Add the Stationary 2D-Cam...

Step 6D2.3: Add the Stationary 2D-Cam

Prepare the Cam-Data for SolidWorks.

Step 6D3.1: Export the data and prepare it for SolidWorks

Tutorial and Reference Help Files for MechDesigner and MotionDesigner 13.2 + © Machine, Mechanism, Motion and Cam Design Software by PSMotion Ltd