The taper and slope symbol within AutoCAD Mechanical is updated to support the ISO 3040:2016(E) standard revision. To support the ISO 3040:2016(E), all aspects of the taper and slope symbol is revised to correspond with ISO 3040:2016(E).
AutoCAD Mechanical continues to support the ISO 3040:2009(E) standard revision to allow documents created in previous releases to be opened, edited, and saved without updating the taper and slot symbol standard. By supporting ISO 3040:2016(E) and ISO 3040:2009(E), you can annotate new and as-built designs using the required standard revision.
In AutoCAD Mechanical 2024 toolset, when opening a legacy drawing, the default standard is changed to the old standard revision. You can change the standard revision in the Options dialog box.
The new revision is displayed in the Taper and Slope Settings for ISO dialog box.
View and modify the taper and slope symbol properties in the Properties palette.