Greetings everybody
I draw two hexagons. I connect them with edges, then I create faces and finally a shell. All using shapebuilder in Part Workbench. There's a bowl shape. Check geometry tool does not report any problem.
When I try to add a wall thickness with 3D Offset, I get an error message BRepFill_CompatibleWire:SameNumberByPolarMethods : the wires must be closed.
Please, advice me, what I'm doing wrong. Thank.
OS: Windows 10
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.16131 (Git)
Build type: Release
Branch: releases/FreeCAD-0-18
Hash: 3129ae4296e40ed20e7b3d460b86e6969acbe1c3
Python version: 3.6.6
Qt version: 5.6.2
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: Czech/CzechRepublic (cs_CZ)
[Solved] 3D Offset tool problems
Forum rules
and Helpful information
and Helpful information
IMPORTANT: Please click here and read this first, before asking for help
Also, be nice to others! Read the FreeCAD code of conduct!
Also, be nice to others! Read the FreeCAD code of conduct!
[Solved] 3D Offset tool problems
Last edited by skeptik on Wed Dec 18, 2019 1:40 pm, edited 1 time in total.
Re: 3D Offset tool problems
Hard to say without the FreeCAD file. Please upload.
A Sketcher Lecture with in-depth information is available in English, auf Deutsch, en français, en español.
Re: 3D Offset tool problems
Thanks. Here it is.
- Attachments
-
- AAA.FCStd
- (79.42 KiB) Downloaded 25 times
Re: 3D Offset tool problems
The only thing I can do is to confirm the issue even with a simplified version:
CheckGeometry says it is 1 Shell and when I try with a similar shell made from a single not closed sketch it works well:
A Sketcher Lecture with in-depth information is available in English, auf Deutsch, en français, en español.
-
- Posts: 384
- Joined: Sat Sep 24, 2016 6:51 am
Re: 3D Offset tool problems
First select all faces. then click menu Part -> join -> connect objects. Then apply offset. It will generate open 3d offset, not possible for filled shape.
Edit :
[reason for not a good filled shape, but i am not sure]
All faces normal should be pointing outward. but Some faces normal are towards inside. so some faces offset to inside.
Edit :
[reason for not a good filled shape, but i am not sure]
All faces normal should be pointing outward. but Some faces normal are towards inside. so some faces offset to inside.
Re: 3D Offset tool problems
Thank you both.
The error message states "the wires must be closed".
Maybe you'll know which wires and how to close them...
The error message states "the wires must be closed".
Maybe you'll know which wires and how to close them...
Re: 3D Offset tool problems
Additions:
When I use another procedure to create the same shape - using loft, everything works correctly.
However, the procedure used in the first case is more generally applicable and is the recommended workflow in the documentation.
When I use another procedure to create the same shape - using loft, everything works correctly.
However, the procedure used in the first case is more generally applicable and is the recommended workflow in the documentation.
- Attachments
-
- BBB.FCStd
- (126.7 KiB) Downloaded 10 times
Re: 3D Offset tool problems
Creation of top face is to difficult for PartWB:3D-Offset.
If you prefer building up from edges to faces to solid, top face has to build up same way.
3D-Offset is used to create outer shell (Fill Offset unchecked)
I used LatticeWB:Sublink to get access to vertexes and edges.
Re: 3D Offset tool problems
Fill offset doesn't works. I made a forward offset, then a filled backward, it's works.
- Attachments
-
- GG.FCStd
- (199.21 KiB) Downloaded 29 times
-
- Capture.PNG (58.81 KiB) Viewed 1571 times
Re: 3D Offset tool problems
Thank you all.
I appreciate your willingness and your time.
I appreciate your willingness and your time.