FreeCad crashes trying to import this file

[bitingsock]

Installed from the Addon Manager.

OS: Windows 10 Version 2009
Word size of FreeCAD: 64-bit
Version: 0.20.1.29410 (Git)
Build type: Release
Branch: releases/FreeCAD-0-20
Hash: f5d13554ecc7a456fb6e970568ae5c74ba727563
Python 3.8.10, Qt 5.15.2, Coin 4.0.1, Vtk 8.2.0, OCC 7.6.3
Locale: English/United States (en_US)
Installed mods: 
  * InventorLoader 1.3.0
  * sheetmetal 0.2.56

crash.log
Fully parametric ball bearing.zip

[jmplonka]

It's because of an access violation caused by trying to generate a cone surface out of a revoluted line.
eg:

import Part
V = App.Vector
apex = V(0.0, 0.0, -65.00000000000001)
center = V(0.0, 0.0, -26.25)
major = V(38.75, 0.0, 0.0)
axis = V(0.0, 0.0, -1.0)
line = Part.Line(apex, center + major).toShape()
line.revolve(center, axis, 360.0)

[jmplonka]

According to Chris_G, line has to be created not with Part.Line but rather with Part.LineSegment.

[luzpaz]

Can freecad python interpreter be adjusted to recognize this an output recommended command instead of crashing ?

[numericOverflow]

I've got a similar issue. FreeCad 0.20.1 crashes whenever I try to import the attached *.f3d file.

crash.log

f3d_files.zip
The "Holder_v13.f3d" crashes freecad
"Front_Rev_1_v9.f3d" doesn't crash freecad, but nothing gets converted.

OS: Windows 10 Version 2009
Word size of FreeCAD: 64-bit
Version: 0.20.1.29410 (Git)
Build type: Release
Branch: releases/FreeCAD-0-20
Hash: f5d13554ecc7a456fb6e970568ae5c74ba727563
Python 3.8.10, Qt 5.15.2, Coin 4.0.1, Vtk 8.2.0, OCC 7.6.3
Locale: English/United States (en_US)
Installed mods:

• Dracula 0.0.2
• InventorLoader 1.3.0

[luzpaz]

@tomate44 do you mind weighing in again ?

Edit: #59 (comment)

[tomate44]

It is a OCCT crash that seem to happen here :
https://github.com/FreeCAD/FreeCAD/blob/master/src/Mod/Part/App/TopoShape.cpp#L2579
I tried to put the crashing function into a try/catch block, without luck.
A more skilled dev should have a look.