﻿ Getting Started Tutorials - MechDesigner > Tutorial 6: Cams: Flat, Barrel, Globoidal, 'Slot' > 6A2: Rotating Cam & Flat-faced-Follower

# 6A2: Rotating Cam & Flat-faced-Follower

## Rotating Cam with Flat-Faced-Followers

To add a 2D-Cam, you must select two elements:

Part - which becomes the Cam-Part.

Profile/Extrusion - which becomes the Cam-Profile.

Before you can add a 2D-Cam, you must prepare the model to include these two elements. You must also specify the motion for each.

### Terminology:

 Cam Terminology : Description and definition. Translating Cam-Follower : the output slides along a straight axis. Rotating Cam-Follower : the output rotates about a fixed axis. Reciprocating : a non-progressive, translating motion. Oscillating : a non-progressive, rotating motion. Non-Progressive motion : a motion that returns to its original position after each machine cycle. Flat-faced Cam-Follower : a planar surface in continuous-contact with the Cam. Roller Follower : a circular shape in continuous-contact with the Cam.

### Objective

Design a Cam to move a Reciprocating Cam-Follower, with a Flat-Faced Cam-Profile.

Design a Cam to move an Oscillating Cam-Follower, with a Flat-Faced Cam-Profile.

### Short Summary of this Tutorial

1.Model two different kinematic-chains:

a.a Slider for the Translating Cam-Follower, and

b.a Rocker for the Oscillating Cam-Followers.

2.Add a Profile to the Slider / Rocker to represent the Flat-Faced Cam-Followers

3.Add a continuously rotating Crank as the cam shaft.

4.Add the 2D-Cam element

This tutorial can take 3 minutes.

## Rotating Cam with Translating Flat-Faced-Follower

Rotating Cam with Oscillating Flat-Faced-Follower