﻿ MechDesigner Reference & User Interface > 2.2 Mechanism-Editor > Forces > Add Force-Data FB

## Why add a Force-Data FB?

Use a Force-Data FB to measure, over a machine-cycle, the force* that acts ON a Point at a Joint, Spring, 2D-Cam, Pulley, or Rack-Pinion.

Use a Graph FB to plot the Forces over a machine-cycle.

Configure the Power Source

* Force: a generalized force, the term we use for Force and Torque data.

Force-Data FB in graphic-area

STEP 1: Add the Force-Data FB to the graphics-area.

 1.Click Forces menu > Force-Data OR 1.Click Forces toolbar > Add Force-Data FB Then: 2.Click the graphics-area

The Force-Data FB is now in the graphics-area.

Doube-click to edit Force-Data FB

STEP 2.Open the Force-Data FB dialog

 1.Double-click the Force-Data FB to open the Force-Data dialog. OR

Force-Data FB dialog

STEP 3.Link the Force-Data FB to a Force-Element and a Point

A.Select a Force-Element

 1.Click a Force-element in the graphics-area or the Assembly-Tree Force-elements include: Joint, 2D-Cam, Spring, Pulley, Rack-Pinion,

A list of Available Points shows in the box below.

B.Select a Point in the box of Available Points

 Even if a Point shows in the Selected Force Output Element box: 1.Click a Point in the box below Available Points If you select a: •Pin-Joint - there are two(2) Available Points One Point on each Part of the Pin-Joint •Slide-Joint - there are four(4) Available Points Two Points on each Line of the Slide-Joint •2D-Cam - zero(0) Available Points Contact Point is selected •Spring FB - two(2) Available Points The Spring's Anchor Points •Rack-Pinion - two(2) Available Points The Contact-Points between the Rack and Pinion

C.Complete the command

 3.Click to close the Force-Data FB