Step 6D1.3: Add the Stationary 2D-Cam

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Step 6D1.3: Add the Stationary 2D-Cam

Key Learnings:

Hopefully, we will learn a new concept. In this tutorial:

... the motion of the Rocker is a function of the position of the Slider

... the motion of the Rocker is NOT a function of the motion of the MMA

We will add the 2D-Cam to the Base-Part. The Rocker is joined to the Slider. The Slider move along Base-Part as the 2D-Cam moves the Rocker.  

Note: There is an alternative: we can join the Rocker to the Base-Part, and move the 2D-Cam with the Slider.

First: What do we want the Cam to look like?


<<< Rocker motion in MotionDesigner prepared for the Rocker in Step 6D1.2

The Rocker motion has 5 segments - Dwell - Rise - Dwell - Rise - Dwell

For convenience we will call it a DRDRD motion.


We should imagine that the X-axis Units are mm.

Then, it is easy to imagine that the X-axis is equal to the Linear Position of the Slider in mm.


Let's look ahead:

This 2D-CamRed-14-1b looks similar to the Rocker motion we designed in MotionDesigner.

We will look at four methods to add the 2D-Cam. We will explain the problems and advantages of each.

Method 1: This method is useless, it will not give you the cam you want!

Method 2: OK

Method 3: Success for Single-axis Machines

Method 4: Success for Multi-axis Machines

tog_minusMethod 1: Add the 2D-Cam (as you would normally)

tog_minusMethod 2: 'Motion' from MMA as input to the Slider

tog_minusMethod 3: Connect the Slider the Rocker

tog_minusMethod 4: Edit the Rocker Motion 'X Range'