5 Replies Latest reply on Apr 15, 2009 12:56 PM by Thai Dang

Unable to thicken the surface

Thai Dang Apr 14, 2009 8:01 PM

I am modifying a model that has a thickened surface. After I make my shape change, I am no longer able to create a thickened surface. I get the "Unable to thicken the Surface" error. It shows me a preview, but does not complete the feature. If i do not add the surface that has the shape change in the knit, then the surface is created. Can anyone help please??

Unable to thicken the surface

Charles Culp Apr 14, 2009 8:15 PM (in response to Thai Dang)

Sure, just upload the part after the change, and attach it to your next message. Make sure to .zip it first.
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- Unable to thicken the surface
  
  Charles Culp Apr 15, 2009 12:12 AM (in response to Charles Culp)
  
  Thai emailed me the file, so I have attached it. I can't look at it until tomorrow morning though.
  
  TM4 - Concept_A2_master.zip 473.1 K
  
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Unable to thicken the surface

Kelvin Lamport Apr 15, 2009 2:16 AM (in response to Thai Dang)

I'm not sure why it doesn't work for the .040" thicken, but it works for up to .0326"
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Unable to thicken the surface

Matt Lombard Apr 15, 2009 2:55 AM (in response to Thai Dang)

The reason it won't thicken is probably the degeneracy. Check the faces using Face Curves. Oh, and this:

Minimum radius of Curvature: 3.93701e-007 in

Do a Tools, Check on the model, and you see this right at the degenerate point. That's your problem right there.

I hate to sound so crass, but this problem is discussed at length in my book and in some blog entries.
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- Unable to thicken the surface
  
  Thai Dang Apr 15, 2009 12:56 PM (in response to Matt Lombard)
  
  Thank you gentlemen!! To sum it up, the determining factor for surface thickness creation is going to be the radii of your curves relative to the interested thickness, correct? So, this is very similar to the allowable bend radii when dealing with sheet metal. Thank you all!
  
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