The Objective of this Step

In this step, we use the Start the Part-Editor to edit the length of the Part.

Our purpose in this step is to learn the many different methods to do each action.

Summary of this Step

Start the Part-Editor – with different methods
Edit the Length of the Part – with different methods
Close the Part-Editor – with different methods

Machine components that you can represent with a 'Part that rotates'.

When you look at a 'Part that rotates' [Crank or Rocker], it may seem that it can only represent a Part that has a 'finite' length - for example, a lever.

However, it can also be a Part that has 'zero' length, for example, a shaft of a gear-box.

You must use a 'Part that rotates' for all machine parts that rotate.


Video

 

Tutorial 1: Step 1.7

Start the Part-Editor
Edit Length of a Part

 

tog_minus        How to 'Start the Part Editor' to edit a Part - different Methods

Use one of the methods detailed below to edit a Part.

METHOD 1: Use the Selection-Window - most recommended

Click the Part-Outline...

Click the Part-Outline...

STEP 1: Click the Part-Outline

1.Click the Part-Outline in the graphic-area ONE-TIME - see image

- or -

1.Click the Part element in the Assembly-Tree ONE-TIME

In the graphic-area, if the Part-Outline is near to different elements, we may also click those different elements also.

All of the elements we click show in the Selection-Window.

SW-RightClick-EditPart

STEP 2: Edit the element from the Selection-Window

1.Identify the element in the Selection-Window

In this case, we want to edit the Part element [to start the Part-Editor]

2.Right-click the Part element in the Selection-Window

A contextual-menu shows near to your mouse.

3.Click 'Edit Element' in the contextual-menu

METHOD 2: Double-click

GA-Double-Click-PartOutline

STEP 1: Double-click a Part-Outline1s-red
1.Double-click the Part-Outline in the graphic-area - see image

-or-

1.Double-click the Part in the Selection-Window [after you click it one-time to put it there!!]

IMPORTANT: Occasionally, with some graphic-cards, to select a Part-Outline, you must hover above the arcs 2s at the end of a Part-Outline to make a Part-Outline Red.

AT-DoubleClick-Part

-or-

1.Double-click the Part element in the Assembly-Tree

METHOD 3: Use 'Edit menu > Edit Part in Part-Editor / Edit-Part in toolbar to left

Icon-EditPart

1.Click 'Edit Part in Part-Editor' icon in the toolbar to the left of the graphic-area - see image

or

2.Click Edit menu > Edit Part in Part-Editor
Click the Part-Outline...

Click the Part-Outline...

Do this sequence:

1.Click Edit menu > Edit Part in Part-Editor [or the Edit-Part in Part-Editor icon to the left of the graphic-area]
2.Click a Part-Outline
3.Click the graphic-area

or, do this sequence:

1. Click a Part-Outline in the graphic-area
2.Click Edit menu > Edit Part in Part-Editor [or the Edit-Part in Part-Editor icon to the left of the graphic-area]

METHOD 4: Right-Click in the Graphic-Area or Assembly-Tree

GA-Context-EditPart-

Right-Click in the Graphic-Area

STEP 1: Hover so the Part-Outline becomes red
STEP 2: Right-Click the Part-Outline
STEP 3: Click Edit Part in Part-Editor from the contextual-sensitive menu.

Note:

Do not click the Part-Outline before you 'right-click' it. The instructions is:

'Hover above so the element becomes RED, then Right-click.'

tog_minus        Am I in the Part Editor?

GA-PartEditor-A

To see if the Part-Editor or the Mechanism-Editor is active.

When the Part-Editor is active:

You cannot see the Part-Outlines
The X–axis and Y–axis are longer than the axes in the Mechanism-Editor.
You see the dimension lines and dimension for the length of an Added-Part.
The Geometry toolbar is to the left of the graphic-area.
The Constraints toolbar is to the right of the graphic-area.

tog_minus        How to open the Dimension dialog-box

GA-PartEditor-EditLength-A

Note:  You can not edit a Dimension when Add-Dimension is active.

Thus, you must make sure Add-Dimension is not active.


METHOD 1: Use the Selection-Window [recommended]

STEP 1: Click the Dimension Line
STEP 2: Right-click the Dimension element in the Selection-Window
STEP 3: Click Edit Element in the contextual-menu

METHOD 2: Double-click the Dimension-Line

STEP 1: Double-click the Dimension Line, Arrowhead or Extension Line – not the dimension number.

GA-PartEditor-EditLength-B


METHOD 3: Hover+Right-click the Dimension-Line

STEP 1: Hover + Right-click the Dimension Line or Extension Line
STEP 2: Click 'Edit Element' in the contextual-menu

The Dimension dialog-box opens.

tog_minus        How to edit the Dimension in the Dimension dialog-box

There are three different methods/procedures you can use to edit a parameters value.

Method 1: Use your Keyboard

Dialog-Dimension-EditDirectly

Enter a data-value directly:

1.Enter the data-value with your keyboard
2.Press the Enter key on your keyboard to update to the new value

You must press the 'Enter' key (also called the Return key) to update the value.

Dialog-Dimension-SymbolicEqtn

Enter a 'symbolic equation':

1.Enter an equation with your keyboard
2.Press the 'Enter'  on your keyboard to update the value

You must press the 'Enter' key (also called the Return key) to update the value.

Symbolic parameters:

Simple Arithmetic: +, –, *, /;
Indices: ^, Sqrt();
Trigonometric [Angles are Radians], pi, Sin(), Cos(), Tan(), Sinh, Cosh, Tansh, ArcSin(), ArcCos(), ArcTan2( ; )

Method 2: Use the 'Spin-Box' tool

Dialog-Dimension-UsingtheSpinBox

Spin-Box arrow buttons [in the blue-box]

3s Top : Left arrowhead to decrease the data-value1s-red by the Spin-Increment2s

3s Top : Right arrowhead to increase the data-value1s-red by the Spin-Increment2s

4s Bottom : Left arrowhead to divide the Spin-Increment2s by 10

4s Bottom : Left arrowhead to multiply the Spin-Increment2s by 10

Edit the Data Value

Click the Top : Left arrowhead to decrease the data-value1s-red. [Data-value after one click: 67.12345 Spin-Increment[1] = 66.12345 ]
Click the Top : Right arrowhead to increase the data-value1s-red [Data-value after one click: 67.12345 + Spin-Increment[1] = 68.12345 ]

Edit the Spin-Increment

Click the Bottom : Left arrowhead to decrease the spin-increment2s [Data-value after one click: 1 ÷ 10 = 0.1 ]
Click the Bottom : Right arrowhead to increase the spin-increment2s [Data-value after one click: 1 × 10 = 10 ]

WARNING: The model re-builds each time you click the top arrow-buttons of the Spin-Box tool


See also - Tutorial: working with large models

DoubleClickSpinBox

< >

'Double-Click'

DoubleClickSpinBox-2

Double-click inside the data-box to hide the Spin-Box.

Double-click the data-box again to show the Spin-Box.

Method 3: Use the Zero/Round contextual-menu

dialog-dimension-zeroround

'Zero' or 'Round' data

1.Right-click inside the data box

The 'Zero / Round' contextual-menu shows.

2.Click:
Zero: value becomes = 0.01 [generally do not use 'Zero' when the dimension is a 'Length' or 'Radius'].
Round: value becomes nearest value that is exactly divisible by the Spin-Increment.

tog_minus        How to Close the Part Editor

GA-PartEditor-Exit

To close the Part-Editor, use one of these methods:

Double-click the Y-axis* or a sketch-element - see image

- or -

Cancel Edit Part ,Icon-EditPart, in the contextual-menu to the left of the graphic-area

- or -

Right-click in the graphic-area and cancel Edit Part icon in the contextual-sensitive icon palette

* Why the Y-axis? Because, if you double-click the X-axis, you may actually double-click the CAD-Line and open the CAD-Line dialog-box. As you gain more experience, and can identify the X-axis, you can carefully the X-axis

GA-PartinMechEditor

When you return to the Mechanism-Editor:

the Part-Outline shows
and the X and Y-axes axes are small

Note:

The Part is 70mm long.
Its Base-Angle is 75°.

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