2009
Table Of Contents
- Contents
- Overview
- 1 About AutoCAD Mechanical
- AutoCAD Mechanical Software Package
- Leveraging Legacy Data
- Starting AutoCAD Mechanical
- AutoCAD Mechanical Help
- Product Support and Training Resources
- Design Features in AutoCAD Mechanical
- Mechanical Structure
- Associative Design and Detailing
- External References for Mechanical Structure
- Associative 2D Hide
- Autodesk Inventor link
- 2D Design Productivity
- Engineering Calculations
- Machinery Systems Generators
- Intelligent Production Drawing and Detailing
- Detailing Productivity
- Annotations
- Standard Mechanical Content
- Standard Parts Tools
- Collaboration
- 2 Commands in AutoCAD Mechanical
- 1 About AutoCAD Mechanical
- Design and Annotation Tools
- 3 Working with Templates
- 4 Using Mechanical Structure
- 5 Designing Levers
- 6 Working with Model Space and Layouts
- 7 Dimensioning
- 8 Working with 2D Hide and 2D Steel Shapes
- 9 Working with Standard Parts
- Key Terms
- Working with Standard Parts
- Inserting Screw Connections
- Copying Screw Connections with Power Copy
- Creating Screw Templates
- Editing Screw Connections with Power Edit
- Working with Power View
- Deleting with Power Erase
- Inserting Holes
- Inserting Pins
- Turning Off Centerlines in Configurations
- Hiding Construction Lines
- Simplifying Representations of Standard Parts
- 10 Working with BOMs and Parts Lists
- 11 Creating Shafts with Standard Parts
- Key Terms
- Creating Shafts
- Configuring Snap Options
- Configuring Shaft Generators
- Creating Cylindrical Shaft Sections and Gears
- Inserting Spline Profiles
- Inserting Chamfers and Fillets
- Inserting Shaft Breaks
- Creating Side Views of Shafts
- Inserting Threads on Shafts
- Editing Shafts and Inserting Sections
- Replacing Shaft Sections
- Inserting Bearings
- Engineering Calculations
- Autodesk Inventor Link
- Index
2 Turn on the Status Toggles ➤ S-LOCK, Status Toggles ➤ R-LOCK and
Status Toggles ➤ Top Down/Bottom up options.
FunctionButton
Switches the structure selection order between bottom-up and
top-down.
BTM-UP/TOP-DN
Switches the Reference Lock on and off. When the Reference Lock
is on, you cannot select entities in an external folder or view (more
on this later).
R-LOCK
Switches the Selection Lock on and off. When the Selection Lock
is on, selection is restricted to the active edit target and below.
S-LOCK
The next two exercises demonstrate the behavior of the BTM-UP/TOP-DN and
S-LOCK selection modes.
To select items when the selection mode is set to top-down
1 Press ESC to clear any preselection.
2 Click the BTM-UP/TOP-DN button and ensure that the text on the button
reads TOP-DN.
3 Click one of the circles in Folder1:1. Note the tooltip indicates that you
selected the folder, Folder1:1, and not the circle.
4 Click the circle again. Note the tooltip indicates that you selected the
nested folder.
5 Click the circle again. Note the tooltip indicates that you have finally
managed to select the circle.
6 Click the circle again. Selection cycles to Folder1:1 again.
When the selection mode is set to top-down, the selection sequence begins
at the topmost level and ends with the elemental geometry. When the selection
mode is set to bottom-up the selection begins with the elemental geometry.
You may want to set the selection mode and repeat the exercise to verify the
behavior of the selection modes under the bottom-up.
Selection Modes | 61