Autodesk AutoCAD Mechanical 2021

ISO and DIN Standard Revision Update for Weld Symbols

The welding symbol has been updated in AutoCAD Mechanical 2021 toolset to support the latest ISO and DIN standard revisions (ISO 2553:2013 and DIN EN ISO 2553:2014). The changes include the revision of the elementary and supplementary symbols, and the new weld notation (Distance between two points). The multi-reference line support is also added to the latest revision.

With the added support to the new ISO and DIN standard revisions, you can annotate documents created in AutoCAD Mechanical toolset using the latest revisions of the welding standards. Although, you can use the latest revisions in new documents, AutoCAD Mechanical toolset will continue to support the legacy revisions to allow documents created in previous releases to be opened, edited, and saved.

Note: Saving the new revision of weld symbols in an older file format converts the weld symbol to a block.

Options Dialog Box

In AutoCAD Mechanical toolset, the new ISO and DIN standard revisions are the default standards for a new drawing. When you open a legacy drawing, the default standard is changed to the old standard revision. You can change the standard revision in the Options dialog box.


Weld Symbol Settings Dialog Box

You can now see the new revision in the Weld Symbol Settings dialog box. The corresponding welding and backing symbols are also listed in the Symbol filter.


Weld Symbol Dialog Box

In the Weld Symbol dialog box, you can see the following changes:

- New controls for multi-reference line support
- Distance palette options
. Intermittent weld
. Distance between 2 points
- New weld and backing symbols in the Symbol palette


Properties Palette

All weld symbol properties are displayed and can be changed in the Properties palette.


Icon Refresh

The icons in frequently used palettes and dialog boxes have been refreshed to support 4K resolution and show optimum contrast.



Other Enhancements

- Layergroup
Layergroups can now be created with names containing special characters such as ()[]{}#$%&+@^.
- Dimension
Working with automatic dimensions no longer causes an error.
- Weld Symbol
. Weld symbol with multiple branches can now be created and edited without causing an error.
. All weld symbol properties can now be edited from the Properties palette.
. The geometry of the welding symbol does not show any difference if the edit operation is cancelled.
- Simple Weld
The simple weld can now be edited correctly using AMPOWEREDIT.
- Content
Content can now be edited using the family table without causing an error.
- System Variable
The FIELDEVAL system variable does not voluntarily change its value after publish operation.
- Dynamic Blocks
Changes to the dynamic blocks are immediately reflected in the drawing.
- Leader Note
The text height of a leader note now displays the correct value when the border scale is more than 1:10.
- PDF Import
Working with the PDF Import dialog box options no longer displays an error.
- Fit or Tolerance
Limits and fits for M3 tolerance now display the correct values.
- Surface Texture Symbol
The surface texture symbol now stays associated when a drawing is re-opened after saving to older file format.

AutoCAD Mechanical toolset leverages most of the new features from AutoCAD. For more information, refer to the What's New in AutoCAD 2021 topic in Help.

System requirements for AutoCAD 2021 including Specialized Toolsets (Windows)

Operating System: 64-bit OS that follows Autodesk's Product Support Lifecycle policy.
CPU:
Basic:2.5–2.9 GHz processor
Recommended:3+ GHz processor
Multiple processors:Supported by the application
RAM:
Basic: 8 GB
Recommended: 16 GB
Display Resolution:
Conventional Displays: 1920 x 1080 with True Color
High Resolution & 4K Displays: Resolutions up to 3840 x 2160 supported on Windows 10, 64-bit systems (with capable display card)
Display Card:
Basic: 1 GB GPU with 29 GB/s Bandwidth and DirectX 11 compliant
Recommended: 4 GB GPU with 106 GB/s Bandwidth and DirectX 11 compliant
Disk space: 7.0 GB

Specialized Toolsets (Windows Only)

AutoCAD Mechanical Disk Space: 7.0 GB