Use this dialog box to pick surfaces you want to include in your 3D part feature.
Select the surface(s) in the list box or click Pick and select a surface with the mouse. To pick additional surfaces, click Pick again before selecting each additional surface.
Click OK to return to the 3D feature properties dialog box.
Click OK and Apply to return to the 3D feature properties dialog box and apply your surface selection to the feature.
You need to consider the following when specifying part surfaces:
1. You can’t manufacture undercut surfaces using 3-axis machining, so it’s a good idea to use only surfaces in the feature that can be cut from the setup.
2. Some surfaces may be cut from multiple setups to manufacture all parts of the surface. In such situations, a Stock curve is helpful in limiting the machining area to just those spots that need it.