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Creating Surface Milling Reference Geometry

you can use reference geometry such as mill surfaces as alternative machining references in surface milling.
Surface Milling Reference Geometry
Alternative surface machining references.
• Mill Surfaces
– Copy
– Extrude
– Fill
• Mill surface modification
– Extend
♦ To Plane
♦ Along Surface
♦ Same
♦ Tangent
♦ Approximate
– Trim
– Merge
• Mill Volumes
• Mill Windows
Surface Milling Reference Geometry

Creating Surface Milling Reference Geometry 1
Figure 1 – Copying Surface

Creating Surface Milling Reference Geometry 2
Figure 2 – Extending a Surface

Creating Surface Milling Reference Geometry 3
Figure 3 – Merged Surfaces
You can use manufacturing geometry as an alternative surface machining reference when creating surface milling sequences. You can use surfaces from mill surfaces, mill volumes, and mill windows.
• Mill Surfaces – You can use mill surfaces to reference multiple model surfaces and group them into a single surface. This enables more efficient surface selection when creating surface milling sequences. The most common options for mill surfaces are:
– Copy – Copy selected reference model surfaces. You can select individual surfaces or use surf and bound techniques to select multiple
surfaces.
– Extrude – You can sketch a 2-D outline and extrude the outline to create a surface.
– Fill – You can sketch a flat 2-D outline to form the boundaries of a surface.
• Mill surface modification – You can use the following tools to extend, trim, and merge surfaces together.
– Extend – You can extend the edges of a surface by a specified distance or up to a plane. The following options enable you to configure the
surface extension:

♦ To Plane – Extends the boundary edge chain up to a specified plane in a direction normal to this plane.
♦ Along Surface – Extends the surface boundary edge chain along the original surface. When Along Surface is used to create an extend
feature, you can use one of the following options to determine how the extension is done.
♦ Same – The default, creates an extension of the same type as the original surface (for example, plane, cylinder, cone, or spline surface).
The original surface is extended past its selected boundary edge chain.
♦ Tangent – Creates the extension as a ruled surface that is tangent to the original surface.
♦ Approximate – Creates the extension as a boundary blend between the boundary edges of the original surface and the edges of the
extension. This method is useful when extending the surface up to a vertex that does not lie along a straight edge.
– Trim – You can trim a mill surface using another surface, datum plane, or curve.
– Merge – When you create additional surface patches, the added patches are not automatically included in the mill surface definition. You must connect the patches with the base quilt (the one that includes the first added surface) by merging.
• Mill Volumes – You can select surfaces from mill volumes and use them as surface machining references.
• Mill Windows – If you use mill windows, then all surfaces within a mill window are selected

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