Anyone having trouble with Variable Swept Blend?

[texaspete]

I have a cross section on a plane (top plane) and is a single spline curve - one entity which is my proposed class A surface of a tail lamp. Then on front plane I have cross section that follows the sheetmetal of the truck. Neither of the cross section touch each other. Now PTC online help said to create a Datum Point at the intersection of top plane (where section is located) and the vertical cross section (curve that follow sheetmetal). I did this and it doesn't work. I have included PTC input.
*During blend feature creation, how can a section be sketched along a trajectory if no vertex exists at the desired location?

During the creation of a blend feature, Pro/ENGINEER will only prompt for a section to be created at the endpoint of each segment of the origin trajectory. It may be desire that a section be sketched along the origin trajectory at a location where an endpoint does not exists. To create a point which can be used to specify additional section locations along the origin trajectory, use the following technique:


Create a datum point on the origin trajectory by selecting Datum, Point, Crv X Srf. Select the trajectory as the "Curve/Edge/Axis" to create the point on, and select a surface or datum plane which intersects the curve at the desired location as the "Surface for intersection."
When creating the blend feature Pro/ENGINEER will prompt the user at each vertex/point desired for section creation and will highlight the datum point created in Step 1.
Select Accept when Pro/ENGINEER highlights the newly created point and Pro/ENGINEER will now allow a section to be sketched at this new location.


Anyone got a solution?
Texaspete

 

[mjcole]

If the trajectory you are sweeping along is planar you can sketch a trajectory on the plane with use edge and then use the divide curve option in sketcher to shorten your trajectory or to allow you to select the vertex as a point to add a section to for your swept blend.

If thr trajectory is non planar you can create a split datum curve using the trajectory and the point you want to divide it with. When doing the split choose both sides if you want to keep the full datum curve.

Michael