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, Origin and +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 an the Mechanism name-tab at the top of the graphic-area, to the right of the Model name-tab.

We have added one Mechanism-Editor, and, thus, there is one Mechanism name-tab.

When we have not added a Part to the Mechanism-Editor, the icon in the Mechanism name-tab is : Mech-SketchOnly. - see 1s-red.

Note: If you cannot see a Mechanism name-tab1s-red at the top of the graphic-area, then Step 1.1 is not complete. Do Add a New Mechanism-Editor.


To 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

You should see in the graphic-area the Green Part-Outline,

This Part is the Base-Part2s.  Its symbol is Rectangular.

It represents the Mechanism-Frame.


Alternatively, you can also explore to the Mechanism-Editor element3s in the Assembly-Tree.

STEP 1: Click the Mechanism element3s in the Assembly-Tree.

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

Again, you should see in the graphic-area the Green Part-Outline - the Base-Part2s.

Add the new Part...


Expand the Kinematic-elements toolbar

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

Note 1: DO NOT CLICK the graphic area before you start to 'Drag'.

Note 2: It is not 'very' important:

where you add the new Part
how long you make the new Part.
STEP 3: Use the Drag technique to add the Part to the graphic-area


To Add Part with the Drag technique

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:

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

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


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

Note: the icon in the Mechanism-Editor tab is now MechDesigner icon

The Part-Outline 1s-redis Blue
There is a CAD-Line2s along the centre of the Part.
The CAD-Line has a Point at each end - its start-Point and the end-Point.

The 'start-Point' and 'end-Point' are 'derived-names' that we use to identify each Point on a Line.

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

There is a set of XY-Axes3s.

The Origin [0,0] of the Part and CAD-Line is at the start-Point of the CAD-Line3s.

The +X-axis is from the start-Point to the end-Point of the CAD-Line.

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