To Create a Rotational Blend by Sketching the Sections
1. Click > > . The Rotational Blend tab opens.
2. Click
Solid to create a solid feature, or click
Surface to create a surface feature.
3. To use an internal or external sketch as the first section, click
Sketched Sections on the
Rotational Blend tab, or select
Sketched sections on the
Sections tab.
4. Create the first section by performing one of the following procedures:
◦ Sketch an internal section:
1. Click the Sections tab, and click Define next to the Sketch collector. The Sketch dialog box opens.
2. To define the sketch plane for the first section, select a planar surface or datum plane. Define the section orientation, and click Sketch. The Sketch tab opens.
3. Sketch the first section. If desired, click > to create a geometry centerline. Click
OK. The
Sketch tab closes.
◦ Select a sketched datum curve.
5. If the sketched section does not contain a geometry centerline, click the
Axis collector on the
Rotational Blend tab, or the
Axis of revolution collector, and select a linear reference to use as the axis of revolution.
6. To create another section:
| • If the first section is an internal or external sketch, the rest of the sections in the blend must be internal sketches. • All the sections must lie in planes that intersect at the same axis. |
a. Click the Sections tab, and click Insert.
b. To define the sketch plane for the section, perform one of the following actions:
▪ To offset from another section in the blend:
1. Select
on the
Rotational Blend tab, or select
Offset dimension on the
Sections tab.
2. Select the section from which to offset the new section in the list on the Rotational Blend tab or in the Offset from list on the Sections tab.
3. Type an angular offset value between -120° and 120° next to the selected section.
▪ To select a reference to define the sketch plane:
1. Select
on the
Rotational Blend tab, or select
Reference on the
Sections tab.
2. Select a planar reference, a point, a vertex, or the end of a curve.
c. Click
Sketch and create the section. Click
OK to close the
Sketch tab.
7. If required, sketch more sections by repeating the previous step.
8. To remove material along the blend, click
Remove Material, and then perform actions depending on whether the blend is a solid or surface feature:
◦ Solid ▪ Optionally, click
to flip the side of the sketch from which material is removed.
◦ Surface 1. Click the Quilt collector, and then select a quilt to trim.
2. To change the portion of the quilt to be removed, click
to the right of
Remove Material. Switch between three modes:
▪ Remove side 1
▪ Remove side 2
▪ Keep both sides
9. If you keep both sides of the quilt, to select the side that will inherit the original quilt ID, click
to the right of the
Quilt collector.
10. To add thickness to the section, click
Thicken Sketch, and type a thickness value. Click
to toggle the thicken direction to one side, the other side, or both sides of the sketch.
11. Click the Options tab and select the method for connecting the sections:
◦ Straight—Connects the blend sections with straight lines and connects the edges of the sections with ruled surfaces, or
◦ Smooth—Creates smooth lines and connects the edges of the sections with spline surfaces.
When you sketch the sections for a smooth rotational blend, all the section geometry must be sketched on the same side of the axis of revolution.
12. To create a closed solid shape in which the first section of the blend is also the last section, click the Options tab, and select the Connect end and start sections check box.
13. Click the Tangency tab, and select a tangency condition for each start and end section.
14. For solid features, click the Body Options tab, and then select the body to which to add geometry, or from which to remove geometry:
◦ Add geometry
▪ To add geometry to an existing body, click the body collector, and then select the body to which geometry is added.
▪ To create the feature in a new body, select the Create new body check box. The name of the new body appears in the body collector.
◦ Remove geometry
▪ To cut geometry from all the bodies that the feature passes through, select All.
▪ To cut geometry from selected bodies:
1. Select Selected.
2. Click the body collector, and then select bodies from which to cut geometry.
15. Click
OK.