To Create a Tangent Draft Cut
A tangent draft cut removes material on one or both sides of a reference curve (such as a draft curve or a silhouette curve) at a specified angle to the reference part surfaces and provides a rounded transition between the drafted surfaces and the adjacent surfaces of the reference part.
1. Click
Mold >
Parting Surface. The
Parting Surface tab opens.
2. Click Surfacing > Blend Tangent to Surfaces. The SURFACE: Tangent Surface dialog box opens.
3. If the Pull Direction has not been specified yet, define it.
4. Click
.
5. Select the type of geometry:
◦ Solid Draft—The draft is created as a solid feature, by removing material from the reference part.
◦ Surface Draft—The draft is created as a surface feature.
◦ Draft Curve—The system does not remove material or create surfaces. It just calculates the draft curves resulting from intersection of the tangent draft surfaces with the reference part geometry.
6. Select the Direction option:
◦ One Sided—The draft is created only on one side of the reference curve.
◦ Two Sided—The draft is created on both sides of the reference curve.
7. Click the
References tab, click
under
Draft Line, and select the reference curve. It can be any chain of edges or curves (such as a draft line). The reference curve must lie on a surface of the reference part.
8. In the Angle text box, enter the value for the draft angle.
9. In the Radius text box, enter the value for the radius of the round connecting the drafted surfaces with the adjacent surfaces of the reference part.
10. Click
to preview the tangent draft geometry. You can change the draft geometry, if necessary, by specifying the
Spine Curves or
Closing Surfaces, located on the
Options tabbed page. You can also edit the reference curve by using the
Curves tabbed page.
11. When satisfied with the feature geometry, click
to close the dialog box and create the feature.