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(continued...) Sketches on two intersecting planes can be projected together to create a 3D curve representing the intersection of surfaces extruded from them.
3D UV curves can also be extracted from a face or surface.
Combined with a useful ignore holes option, this can be used to create editable surface definitions even from imported data.
There is a new Improve Geometry function added to the Import Diagnosis tool.
Imperfect geometry is simplified but there is always the risk that it may prevent full rebuild of the imported body.
Incomplete imported surfaces can be improved using the delete hole command that allows the selection of any closed profile hole.
For more control the fill surface command allows the creation of a surface patch with any number of sides, within a boundary defined by existing model edges or sketches.
This includes options to maintain tangency with patch edges and use of a constraint curve for greater control.
A single sweep feature can contain multiple contours for multiple lumen or hollow forms.
Alternatively sweeps and lofts can be used to create thin features of a specified wall thickness.