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Sketch Constraints
Constraints limit changes and define the shape of a sketch. For example, if a
line is horizontally constrained, dragging an endpoint changes the length of
the line or moves it vertically. However, the drag does not affect its slope. You
can place geometric constraints between:
■ Two objects in the same sketch.
■ A sketch and geometry projected from an existing feature or a different
sketch.
As you sketch, constraints are automatically applied to the various sketch
elements. For example, if the horizontal or vertical symbol displays when you
create a line, then the associated constraint is applied. Depending on how
accurately you sketch, one or more constraints could be required to stabilize
the sketch shape or position. You can also add constraints manually to any
sketch element.
Although you can use unconstrained sketches, fully constrained sketches result
in more predictable updates.
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2D AutoCAD Data in Sketches
When you open an AutoCAD
®
file in Autodesk Inventor, you can place 2D
translated data:
■ On a sketch in a new or existing drawing.
■ As a title block in a new drawing.
■ As a sketched symbol in a new drawing.
■ On a sketch in a new or existing part.
You can import AutoCAD (DWG) drawings into a part sketch, drawing, or
drawing sketch overlay. The entities from the XY plane of model space are
placed on the sketch. In a drawing, certain entities, such as splines, cannot
Sketched Features | 25