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1-Visitor
May 10, 2019
Question

Boundary Blend Failure

  • May 10, 2019
  • 1 reply
  • 7386 views

I tried posting this yesterday but it looks as if it did not go through.  Anyway, I made a sketch of an airfoil profile and then on an offset plane I went to create a new sketch.  The new sketch, say sketch 2, was a pasted copy of the first sketch, sketch 1.  When I pasted in sketch 1 I changed the insertion point to a common of the referenced sketch 1 and rescaled it down by .95%.  All was good so I hit the green check.  I went to the Blend Feature under Engineering Tools where the Swept and Blend Icons are and started the Blend Feature.  Did my selections hit green check and I got a Feature Failed message.  When back tracing I noticed the Start Point was not the same on both sketches.  I tried moving the start point on each model but they never would line up in the same direction.  Why would it do this?  I went back into Sketch 2, and the two splines I created for the airfoil acted like a free lasso and kind of blend apart even though the points were locked into position from sketch 1.  I have tried using different geometry in other temporary parts and the Blend Feature works fine so why with my airfoil did it fail and then checking the Sketch2 geometry it went haywire?

1 reply

16-Pearl
May 13, 2019

Could you please share your file so that the issue can be understood clearly ? Thanks

Scott671-VisitorAuthor
1-Visitor
May 14, 2019

The subject line is not correct.  It is not the Boundary Blend it is the Blend Function under the shapes tab.  I have tried several different shapes plus re-created the exercise models in PTC University several times.  I also followed an example that was on You Tube be a Decaff10 (I think) where he imported points from NACA Airfoil files and I was able to blend that way.  Now that I am trying to do this with my own airfoil shape it does not work.  After I get the error message I go into Sketch #2 the spline acts like a loose fire hose flopping around.

 

I have tried attaching a .prt file but the message board is giving me an invalid file extension.

 

-Scott

16-Pearl
May 14, 2019

yes, I can see it. Did you try open the file i attached?