SliceApart doesn't work?

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sanojn
Posts: 1
Joined: Mon Mar 13, 2023 4:07 pm

SliceApart doesn't work?

Post by sanojn »

Hi,

I'm new to FreeCAD and trying to learn.

Code: Select all

OS: Windows 10 Version 2009
Word size of FreeCAD: 64-bit
Version: 0.20.2.29603 (Git)
Build type: Release
Branch: releases/FreeCAD-0-20
Hash: 930dd9a76203a3260b1e6256c70c1c3cad8c5cb8
Python 3.8.10, Qt 5.15.2, Coin 4.0.1, Vtk 8.2.0, OCC 7.6.3
Locale: Swedish/Sweden (sv_SE)
Installed mods: 
  * Curves 0.6.8
  * Defeaturing 1.2.0
I have a design with a solid (created from Nurbs surfaces and lofts) that I try to sliceApart
with various compound surfaces. One such surface is a flat plane with a small protrusion
in the center.
ProblematicSplitSurface.png
ProblematicSplitSurface.png (101.54 KiB) Viewed 179 times
Solid.png
Solid.png (118.78 KiB) Viewed 179 times
The solid is sliced, but remains in a single part, instead of splitting in two separate "exploded"
solids that I intended. I can cut the solid and see the split lines, but the result is considered
a single solid.

When I do the same with a simpler compound surface (two adjoint planes with an angle in between)
it works as I expected, and I get two "exploded" slices that I can transform independently:
WorkingSplitSurface.png
WorkingSplitSurface.png (102.68 KiB) Viewed 179 times
ExplodedSolid.png
ExplodedSolid.png (120.97 KiB) Viewed 179 times
In both cases, I'm doing the same operation: Marking the solid, then the compound surface
I want to split with, then: Part WB -> Part -> Split -> Slice Apart.

What am I doing wrong?
The project file is available here. The solid is "Fillet001". The two compund surfaces are Compound (failing) and Compound001 (Working).

Thanks,
Jonas
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