Creating a 4th-axis wrapped feature from a 3D model

To create a 4th-axis wrapped feature from a 3D model:

1. Pick a single feature that you want to machine on the part.

   

2. Check it is a wrapped feature. If the feature has all straight sides, it can be cut with a normal 2.5D feature.

   

3. Consider the restrictions of 4th-axis wrapping to make sure it is correct for cutting the feature.
4. Do the sides go through the center axis of wrapping? If you really need to cut these sides accurately, you must use Cut sides perpendicular to index axis.
5. Use surface edges to extract a curve from the solid model:

   

6. Unwrap the curve. Make sure you use the option to project to the UCS. The curve may look strange to you, but it does work.
7. Make the feature opting to wrap around the index axis.
Note: This option is not available in the Feature wizard. If you use the wizard, you must create a normal feature and edit it to change it into a wrapped feature.
8. Generate the toolpaths. If you have any problems consider the restrictions of 4th-axis wrapping.