In the following examples the a face fails geometry check and any resulting solid fails.
Here Face003 fails. It was created, using Part>Shape builder, with the 3 edges from either the sketches or edges from the previous faces.
Here Surface003 fails. Similarly it was created in with the sketches and the Surface workbench.
Is this something FreeCAD can master or is it an OCCT thing?
(Yes, I know there are other ways to accomplish this task...)
OS: Ubuntu 20.04.3 LTS (XFCE/ubuntustudio)
Word size of FreeCAD: 64-bit
Version: 0.20.26167 (Git)
Build type: Release
Branch: master
Hash: cef86fb1ef33f281565e35f0d75515c9b2dfe1d9
Python version: 3.8.10
Qt version: 5.12.8
Coin version: 4.0.0
OCC version: 7.5.2
Locale: English/United States (en_US)
Part & Surface workbench failed geometry
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Part & Surface workbench failed geometry
- Attachments
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- PartFaceFail.FCStd
- (23.69 KiB) Downloaded 12 times
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- CurvesFail.FCStd
- (55.9 KiB) Downloaded 17 times
Star Trek II: The Wrath of Khan: Spock: "...His pattern indicates two-dimensional thinking."
Re: Part & Surface workbench failed geometry
With regard to CurvesFail, it looks like an OCC issue but 7.3 is way more stable than 7.6beta, it all seems to be an issue with the way the surface is constructed off the arc.
Re: Part & Surface workbench failed geometry
Yet, here it produces a valid solid...hmmm
- Attachments
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- LoftToPoint.FCStd
- (11.46 KiB) Downloaded 15 times
Star Trek II: The Wrath of Khan: Spock: "...His pattern indicates two-dimensional thinking."
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Re: Part & Surface workbench failed geometry
I was able to make successful solid by lofting Sketch002 to a Part::Vertex attached to Sketch001.Vertex1, and then using that face produced by the loft in place of face003 using the solid maker tool in Curves workbench.
I was also able to make a good face using Curved Shapes workbench from downgraded edges of face003, but was unable to reproduce that success on a subsequent try.
Edit: Note that the loft does not produce a solid because the sketch being lofted is not a closed wire. It produces a face, which is then used with the other faces to make the solid.
I was also able to make a good face using Curved Shapes workbench from downgraded edges of face003, but was unable to reproduce that success on a subsequent try.
Edit: Note that the loft does not produce a solid because the sketch being lofted is not a closed wire. It produces a face, which is then used with the other faces to make the solid.
- Attachments
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- PartFaceFail_markster.FCStd
- (23.09 KiB) Downloaded 14 times
Re: Part & Surface workbench failed geometry
Hmm...I reused the same file that I used part builder with, and forgot the sketch there didn't need a closed sketch. Details...TheMarkster wrote: ↑Wed Oct 20, 2021 4:29 pm ...
Edit: Note that the loft does not produce a solid because the sketch being lofted is not a closed wire. It produces a face, which is then used with the other faces to make the solid.
Star Trek II: The Wrath of Khan: Spock: "...His pattern indicates two-dimensional thinking."