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This task will show you how to create a geometry with the
History mode deactivated, which means that for each created element there
are no links to the other entities that were used to create that element. |
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If it is not displayed, open the
Getting_Started1.CATPart
document.
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Click Pad
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The Pad Definition dialog box is displayed.
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Click Sketch
in the Pad Definition dialog box.
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Select Plane.2 either from the geometry area or the
specification tree. You are now in the Sketcher Workbench.
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Click Create Datum
in the Tools toolbar to deactivate the History mode.
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Select the internal cylindrical surface of the part as
shown here.
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Select Project 3D Elements
in the Operation toolbar.
The projection is created.
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Select Exit Workbench
from the Workbench toolbar.
You are now back in the Part Design workbench. Both the part
and the dialog box are still displayed.
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Set the length value.
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Select Mirrored extend.
The part will be displayed as shown here based on the newly created
Sketch.3.
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Click OK in the Pad Definition
dialog box.
The pad has been created and now edit Sketch.1.
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Double-click Sketch.1 from the specification tree.
You are now back in the sketcher workbench.
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Double-click the smallest circle radius value from the
geometry.
The Constraint Definition dialog box is displayed.
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Change the radius value to 70mm for instance.
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Click OK in the dialog box.
The created pad has not been updated as elements created with the Datum
mode activated are no longer associative the other geometry.
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Note that:
- the associativity between elements is no more kept when using the
Datum mode.
- this option has the same effect when using the Offsetting a use-edge
element.
- a click on the icon activates the Datum mode for the current or the
next command.
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