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IDProjectCategoryView StatusLast Update
0003436PartDesignBugpublic2019-06-20 01:38
Reporterdbecad Assigned To 
Status confirmedResolutionopen 
Product Version0.18 
Target Version0.19 
Summary0003436: Fillet edge crash FC
DescriptionFilet of the edge indicated crash FC completely, was reproduced by ChrisB.
Forum thread
Thanks for your hard work!
OS: Ubuntu 16.04.4 LTS
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.13548 (Git)
Build type: None
Branch: master
Hash: 32973995423007a59cd18799c63383150811d1a7
Python version: 2.7.12
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 7.2.0
Locale: English/UnitedStates (en_US)
Steps To Reproduce-Open PhoneStand_repro.FCStd file
-Select Part workbench
-Fillet indicated edge -> crash (see attachment below)
FreeCAD Information



2018-04-19 20:36


PhoneStand_repro.FCStd (81,429 bytes)


2018-10-17 20:57

administrator   ~0012060

Crash still exists:
OS: macOS High Sierra (10.13)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.14957 (Git)
Build type: Release
Branch: (HEAD detached at 22513600d)
Hash: 22513600ddc11a8d0d392f67225d443b7dc2e5bb
Python version: 2.7.15
Qt version: 5.11.2
Coin version: 4.0.0a
OCC version: 7.2.0
Locale: German/Germany (de_DE)


2018-10-18 01:59

manager   ~0012063

No crash here, only a "Failed to create fillet" error.

And I believe as has been already mentioned in the topic, setting the last Pad's Refine property to true fixes the problem and the fillet succeeds.

OS: Ubuntu 18.04.1 LTS
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.14979 (Git)
Build type: Release
Branch: master
Hash: 47536dcd3729d3db106af628d62f2bf449e68c49
Python version: 2.7.15rc1
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: French/Canada (fr_CA)


2019-02-24 11:39

administrator   ~0012736

It depends on with which options OCCT was built. If inside the file ooct_defs-flags.cmake this part was commented out:

then OCCT is built with exception handling. In this case OCCT raises an error instead of simply crashing.

The relevant part of the call stack is:

ChFi3d_Builder::PerformIntersectionAtEnd ChFi3d_Builder_C1.cxx 1678
ChFi3d_Builder::PerformFilletOnVertex ChFi3d_Builder.cxx 735
ChFi3d_Builder::Compute ChFi3d_Builder.cxx 303
BRepFilletAPI_MakeFillet::Build BRepFilletAPI_MakeFillet.cxx 534
PartDesign::Fillet::execute FeatureFillet.cpp 101
App::DocumentObject::recompute DocumentObject.cpp 90



2019-06-20 01:38


ticket4023.png (27,289 bytes)   
ticket4023.png (27,289 bytes)   

Issue History

Date Modified Username Field Change
2018-04-19 20:36 dbecad New Issue
2018-04-19 20:36 dbecad Tag Attached: fillet
2018-04-19 20:36 dbecad File Added: PhoneStand_repro.FCStd
2018-04-20 21:22 Kunda1 Status new => confirmed
2018-04-20 21:22 Kunda1 Target Version => 0.18
2018-10-17 20:57 Kunda1 Note Added: 0012060
2018-10-18 01:59 normandc Note Added: 0012063
2019-02-24 11:39 wmayer Note Added: 0012736
2019-02-24 11:39 wmayer Target Version 0.18 => 0.19
2019-06-20 01:38 Kunda1 Steps to Reproduce Updated View Revisions
2019-06-20 01:38 Kunda1 File Added: ticket4023.png