Small offsets causing problems

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David Scheu

• May 05, 2021 16:49

I'm new to Profile Builder so am probably just doing something wrong, but when I make a path that has offsets smaller than the profile width, I get bad results. In this screenshot you can see a small offset on the left that is fine, and on the right that is not fine. The bottom part miters correctly but the top is skewed.

 

Same from above with everything else turned off:

In this case the profile (crown molding) is about 6-3/4" wide, and the offset is 2". The skewed end of the miter is held back to the amount of the offset.

I can't find any way to prevent this, or reason why some work and some don't.

 

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  David Scheu

  • May 06, 2021 15:48
  • Edited

  On a path with multiple small jogs, it's consistently wrong the same way. On a counter-clockwise path, every small jog to the right is OK, and every small jog to the left is squished. On a clockwise path, it's the same but opposite direction.

  One more observation: the molding miters are fine when using regular SketchUp "follow me." 

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  Dale Martens

  • May 06, 2021 15:49

  Hi David - you can probably prevent this from happening if you create the bump-put portion as a separate Profile Member rather than having a continuous one throughout.  Visually, it should look OK unless viewed from behind.  If you send me a link to the model, I can show you what I mean.

   

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  David Scheu

  • May 06, 2021 16:04

  Dale, that method does work, but the joint renders differently than others. No edges at the interesection and extra edges at the overlap:

  

  instead of:

   

  Is this a known issue? No way to get the molding to draw properly in one go?

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  Dale Martens

  • May 07, 2021 14:16

  If you send the model, I could take a look to see if there are other workarounds.  For example, you could try performing a 'trim to solid' operation to generate the needed edges / joint. 

  I would say this is a known issue

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  David Scheu

  • May 11, 2021 15:32

  The pictures are from a huge complex model but here's a simplified version showing the same issue.

  OK, back up a step... how do I send you a model? I get a "You can only upload images (jpeg, gif, or png)." message when I try to add the .skp file to this post.

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