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IDProjectCategoryView StatusLast Update
0004498PartDesignBugpublic2021-02-06 06:43
Reporterrobotarmy Assigned To 
Status newResolutionopen 
Platformx86OSMac OSOS Version10.15.7 (19H2)
Target Version0.20 
Summary0004498: Loft between sketches with inner and outer elements created in different order results in bad 3D geometry
DescriptionWhen creating a loft, the order the sketch elements are created should not matter, but it does.

Take the case of lofting between two sketches, with two circles each, for example, to make a kind of cylinder. In one sketch the inside was created first, and in the other sketch the outside was created first, the loft tries to cross over itself resulting in zero thickness geometry and a 'black part'.

See forum post
See updated limitations on wiki page for PartDesign Loft:

Steps To ReproduceSee attached file
Tags#pending-forum, Loft
FreeCAD InformationOS: macOS 10.15
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.22756 (Git)
Build type: Release
Branch: master
Hash: ce87f586ee36ffe8ebcdcd3947ced4ab389ae795
Python version: 3.8.6
Qt version: 5.12.5
Coin version: 4.0.0
OCC version: 7.4.0
Locale: C/Default (C)



2020-11-21 06:41


vacuumadapter.FCStd (129,174 bytes)


2022-03-03 13:55

administrator   ~0016963

This ticket has been migrated to GitHub as issue 6130.

Issue History

Date Modified Username Field Change
2020-11-21 06:41 robotarmy New Issue
2020-11-21 06:41 robotarmy Tag Attached: Loft
2020-11-21 06:41 robotarmy File Added: vacuumadapter.FCStd
2020-11-21 16:39 Kunda1 Tag Attached: #pending-forum
2021-02-06 06:43 abdullah Target Version => 0.20