Breaking/Trimming Use-Edges

This task shows you how to break or trim imported elements (projection, intersection, offset). The created use edge is only changed into construction mode but it is unchanged.
For the purpose of this scenario an example of trimming element is used.

  • Create a conic.

  • Exit Sketcher and in the Part design workbench, create a new sketch based on the conic.

  • Project the conic.

  • Create two lines as shown here.

  1. Click Trim from the Operations toolbar.

  1. Select the Use Edge between the two lines.

  2. Select a first line.

An arc is created based on the use-edge and the original use-edge is put in construction mode as shown here.

  1. Click Trim .

  2. Select the arc between the two lines.

  3. Select the second line.
When trimming a curve the selected location on the curve is important as it determines the curve part that will be kept.
  The mark, which is put in construction mode, and the arc are displayed in the specification tree.
  • When deleting the use edge (projection, intersection, etc...), all the arcs related to it are deleted too.
  • The edition of an arc is only possible in the Sketcher workbench.
  • After a trim operation, for instance, the diagnosis is not modified and if the sketch is iso-constraint, it will stay iso-constraint.
  • A use edge of a spline curve can be extrapolated beyond its endpoints in a line tangent to the curve at its endpoints.