Delete Fillets
Use the Delete Fillets tool to search for fillets of a specified radius and delete these from an object. The faces forming the fillet are removed and the adjacent faces are extended to cover the resulting wound.
Note that this defeaturing tool may not find all fillets on nonmanifold objects. An example of a nonmanifold object is an object with several domains. Such an object can for example result from a Union or a Partition operation. To remove the fillets make sure to defeature the geometry objects before applying Boolean operations that result in nonmanifold objects.
The Delete Fillets tool cannot delete fillets for which the adjacent faces cannot be extended to cover the wound. The figure below shows an example of such fillets. Applying the fillets on the highlighted edges deletes the annular face from the geometry, which cannot be recreated if the fillets are to be deleted.
To open the Tools window for Delete Fillets, from the Geometry toolbar, Defeaturing and Repair () menu, select Delete Fillets (). You can also right-click the Geometry node and select the same option from the context menu.
Note: When you are on the Tools window for Delete Fillets, you can at anytime switch to another defeaturing tool by clicking one of the corresponding buttons at the top of the window.
Delete Fillets
Activate the Input objects selection by clicking the Active button to toggle between and . Select the objects you want to examine in the Graphics window. They appear in the Input objects list.
The Delete Fillets tool can only be applied to objects that are represented by the Parasolid® geometry kernel, also called CAD objects.
In the fields Minimum fillet radius and Maximum fillet radius, enter the size of the fillets you want to search for. When you click the Find Fillets button, a list of fillets with radii between the given values is shown in the Fillet selection list.
To delete the found details, either click the Delete All button, or select a subset of the found details in the list and click Delete Selected. Then, the selected details are deleted from their objects, and a node corresponding to this operation is added to the geometry branch of the model tree.
If you want to modify the performed deletion operation, you can select the added node in the geometry branch. Then, edit the node’s form that appears in the Settings window. Click the Build Selected button () to see the result of your edits. The Settings window for Delete Fillets contains the additional settings described below.
To delete all fillets returned by the search, set the Deletion type to All fillets. You can delete a subset of the found fillets by selecting them in the Fillet selection list, and choosing Selected fillets in the Deletion type list.
Selections of Resulting Entities
If you want to make the resulting entities contribute to a cumulative selection, select a cumulative selection from the Contribute to list (the default, None, gives no contribution), or click the New button to create a new cumulative selection (see Cumulative Selections in the COMSOL Multiphysics Reference Manual).
Select the Resulting objects selection check box to create predefined selections (for all levels — objects, domains, boundaries, edges, and points — that are applicable) in subsequent nodes in the geometry sequence. To also make all or one of the types of resulting entities (domains, boundaries, edges, and points) that the resulting objects consist of available as selections in all applicable selection lists (in physics and materials settings, for example), choose an option from the Show in physics list: All levels, Domain selection, Boundary selection, Edge selection, or Point selection. The default is Domain selection, which is suitable for use with materials and physics defined in domains. For use with a boundary condition, for example, choose Boundary selection. These selections do not appear as separate selection nodes in the model tree. Select Off to not make any selection available outside of the geometry sequence.