# By Draft Angle ## By Draft Angle The ExtractMeshFacesByDraftAngle command separates mesh faces from the parent mesh object based on the angle of the faces to the view. ExtractMeshFacesByDraftAngle can split a mesh object for molds or to look for undercut areas. In the example, the mesh faces were selected in the top view.\ ![](https://docs.mcneel.com/rhino/8/help/en-us/image/topic_illustrations/stlrepair_072.png) ### Command - line **Start angle from camera direction:** Sets the starting angle from the direction of the viewport camera. **End angle from camera direction:** Sets the ending angle from the direction of the viewport camera. **Border only:** Makes polylines out of the edges of the selected meshes instead of extracting them from the parent mesh object. **Extract a copy:** Makes a copy of the selected mesh faces rather than extracting them from the parent mesh object. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.rhinoartisan.com/commands/mesh/extract-mesh-faces/by-draft-angle.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.