﻿ Getting Started Tutorials - MechDesigner > Tutorial 5: Kinematic Function Blocks for Motion > Step 5.3: The Motion-Dimension FB

# Step 5.3: The Motion-Dimension FB

## Motion-Dimension FB

### Three(4) Key Learnings in this Step.

A)A Motion-Dimension FB identifies a Part , called a Motion-Part, that we want to move with a motion.

B)A Motion-Dimension FB, and its Motion-Dimension, define the position of the Motion-Part

C)We specify the value of Motion-Dimension with two parameters:

Base-Value : we edit it in the Motion-Dimension dialog-box - it is the position of the Motion-Part when we do not connect a wire to the input-connector.

Motion-values : the position (and velocity and acceleration) values, which a wire provides at its input-connector.

Motion-Dimension = Base-Value + Motion-Values

D)There are two types of Motion-Parts:

Rocker  = Part + Pin-Joint + Motion-Dimension FB

= Part + Slide- Joint + Motion-Dimension FB Add Motion-Dimension FB command and the Command-Manager Motion Dimension FB in the Graphic-Area

### General Procedures Motion-Dimension FB and Rocker Motion-Dimension FB and Slider Motion Dimension dialog box Use a Graph FB to display the values at the output-connector of a Motion-Dimension FB