Summary of this Step

Before we can do Add 2D-Cam, we must add the Cam-Roller to the Cam-Follower Part. We define its shape and its position in the Cam-Follower Part with the Part-Editor.

In this Step:

1.We use the Part-Editor to edit the Part to which we want to add the Cam-Roller.
2.We add a circular shape that becomes the Cam-Roller, and exit the Part-Editor
3.We add a Profile to the circular shape of the Cam-Roller

Notes:

We should distinguish between two terms:

Cam-Follower 'Shape' - which may be circular, flat-faced, ovoid, knife-edged
Cam-Follower Part - which may be a translating [sliding], oscillating [rotating], or have a more general motion.

Cam-Follower 'shapes' are in continuous contact with the Cam surface. See Cam-Follower.

We do not use a command: Add Cam-Follower Shape. You must sketch the shape as a sketch-loop and define its position in the Part-Editor. Then add a Profile to the shape in the Mechanism-Editor.


tog_minusVideo of this Step

 

Tutorial 6A-4

Add a Cam-Follower to a Part.

tog_minusStart the Part Editor, Add a Circle, Add a Profile

QST5-4-1

Start the Part-Editor

The shape of a Cam-Follower Roller is a sketch-element that is a child to a Part!  Edit the Part to which you want to sketch-element to give the shape of the Cam-Follower Roller.

You know how to 'Start the Part-Editor'. There are many ways:

STEP 1: Double-click the Part-Outline1s-red
- or -
Right-click Part-Outline + Click the Edit Element
- or -
Click the Part-Outline and then Click the Edit Part icon Icon-EditPart to the left of the graphic-area.

QST5-4-2

Add and Dimension a Circle to specify the position and shape of the Cam-Follower

STEP 1: Click Add Circle in the Geometry toolbar
STEP 2: Click in the graphic-area to drag the Circle radius out from its centre-Point
STEP 3: Dimension the centre-Point of the Circle relative to the X-axis and Y-axis.
STEP 4: Dimension the radius of the Circle.

The Circle1s-red becomes black to indicate its definition is complete.

Step 4 is complete

STEP 5: Close the Part-Editor: Double-click the new Circle or the Part axes to return to the Mechanism-Editor

QST5-4-3

Add a Profile to the Circle

A Cam-Follower must be a Profile.

STEP 1: Click Add Profile in the Solids Toolbar,
- or -
Solids menu > Add Profile
STEP 2: Click the Circle1s-red
STEP 3: Click OK-tiny-13-17 in the Command-Manager

Step 3 is complete

The Pink colour identifies the Profile1s-red. When we view the model from the 'Front- View, the Profile is in front of the Circle sketch-element.

See Application Settings | Colour tab to edit the colour of the Profile Element.

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