About Parts

Parts become the moving elements in kinematic-chains.

Objective of this Step

1.Learn how to identify the Mechanism-Editor - before and after you add a Part.
2.Learn how to add a Part with the Drag technique
3.Identify the elements in a Part: its CAD-Line, start-Point, end-Point, Origin and its +X–axis direction.

Short Summary of this Step:

1.Click in the Add menu > Mechanism sub-menu > Add-Part [or Kinematic-elements toolbar]
2.Drag your mouse-pointer in the graphic-area



Tutorial 1: STEP 1.2

Add Part


Identify the Mechanism-Editor

It is possible to add many Mechanism-Editors to the model. Each Mechanism-Editor is identified by its Mechanism name-tab

In Step 1.1 we added one Mechanism-Editor. Thus, we see one Mechanism name-tab.


The icon in the Mechanism name-tab is : Icon-MechanismEditor-NoParts- see 1s-red below.

This is the icon when there is not an added a Part.

The icon in the Mechanism-Editor tab becomes MechDesigner icon when you have added a Part.

Make sure the new Mechanism-Editor is the active editor:


STEP 1: Click the Mechanism name-tab1s-red at the top of the graphic-area


STEP 1: Click Mechanism3s in the Assembly-Tree [see image below]

The symbol for a Base-Part2s - the fixed Part -is a rectangular Green Part-Outline . IT represents the Machine-Frame.


You can see in the Assembly-Tree that the Base-Part is a child to the Mechanism-Editor.

Add the new Part...


STEP 1: Click Kinematic-element toolbar > Add Part
- or -
Click Add menu > Mechanism sub-menu > Add Part
- or -
SHORTCUT: Click the INSERT key on your keyboard
Drag to Add-Part

Drag to Add-Part

The pointer changes to the Add Part pointer3s


DO NOT CLICK the graphic area before you start to Drag.
It is not very important:
owhere you add the Part
ohow long you make the Part.

STEP 2: Use the Drag technique to add the Part to the graphic-area

When you left mouse-button up, a new Part shows in the graphic-area.


To Add Part

1.'Left Mouse-Button Down' [and keep it down] - to place the start-Point
2....'move your mouse-pointer'
3....'Left Mouse-Button Up' to place the end-Point.


Add Part is NOT a persistent command. Thus:

Before you drag, do not click in the graphic-area  as MechDesigner will not add a Part with zero-length,
The Add Part command becomes de-selected.

Identify the new Mechanism-Editor icon and the elements in the Part.



The Part-Outline 1s-redis Blue
There is a CAD-Line2s from the start-Point to the end-Point the Part.
The XY-Axes3s and origin of the Part are at the start-Point of the CAD-Line
The +X-axis is from the start-Point to the end-Point of the CAD-Line.

The start-Point - where you mouse-button-down-  and end-Point - where you mouse-button-up - of the Cad-Line show as Points in the Selection-Window.

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