Siemens nx how to use variational sweep

In Siemens nx, variational sweep command use to create a body by sweeping a cross section along a path where the shape of the section varies along the path.

Where do i find it?

From menu -> insert -> sweep -> variational sweep.

From home tab -> Feature group -> More gallery -> Sweep gallery -> variational sweep.

How to use variational sweep command.

A.Sweep a section along a path.

1. In variational sweep dialog box, left click on sketch section. The create sketch dialog box will open.

Siemens nx variational sweep sketch section — sketch section

2. In path group, Select curves or edges to define the path.

Siemens nx variational sweep create sketch and select path — create sketch and select path

3. In the Path location, You can select arc length, % arc length, through point, In this example, i select % arc length, and the sketch plane is at the start of the selected path where % arc length is 0.

4. In plane orientation, orientation group, you can select Normal to path, normal to vector, parallel to vector, through axis. In this example, i select normal to vector then select specify vector.

5. Click OK to accept the sketch plane.

6. Use sketch tools to create and constrain a section.

siemsn nx variational sweep creates curves — creates curves

7. Click finish sketch.

8. The variational sweep dialog box will appear, In Boolean list, you can select unite, subtract, none, intersect, sew. In this example, i select sew.

siemens nx variational sweep sweep a section along a path

9. Click OK or apply to create the feature.

B. Sweep a section along two path.

To sweep a section along two parts, i will continue from step 6 from sweep along a path.

7. In sketch tools, use intersection point command to create a point at the intersection of the second path and the sketch plane.

siemens nx variational sweep sweep a section along two path intersection point — siemens nx sweep a section along two path intersection point

8. Use sketch tools to create and constrain the section.

siemens nx variational sweep sweep a section along two path curves sketch — sweep a section along two path curves sketch

9. Click finish sketch.

siemens nx variational sweep sweep a section along two path — sweep a section along two path

10. Click OK or apply to finish.

C. Add a secondary section to a feature.

You can add secondary sections to a variational sweep to control dimension at specific locations.

To explain, i will continue sweep a section along two paths from step 9.

In vaiational sweep dialog, secondary sections, click add new set.

In position method, select through point then select a point define the new section location.

siemens nx variational sweep secondary section

Click the dimension on the secondary section that you want to change. Then click Launch the formula editor. Then select make constant -> Input new value.