I downloaded :
OS: Windows 10 Version 2009
Word size of FreeCAD: 64-bit
Version: 0.20.26155 (Git)
Build type: Release
Branch: master
Hash: 0926a4148bcff11249fd4f56bc30256102ffe105
Python version: 3.8.6+
Qt version: 5.15.2
Coin version: 4.0.1
OCC version: 7.5.0
Locale: Dutch/Netherlands (nl_NL)
Then import 1004-1.ifc -> no errors, correct representation. Import 1005-1.ifc -> see error below from trace + not the correct representation. There is a part visible that should not be visible due to the negative elements.
09:44:29 Debug: Error computing areas for STEKER : unable to project face: [Vector (5280.983190218481, -44.4500007629395, 6292.317026528719), Vector (5382.640897445215, -0.0851506584977398, 6302.363346298014), Vector (5280.983190218481, -39.4500007629395, 6292.317026528719)] (face normal: Vector (-0.09834589448436228, -0.0, 0.9951522923844726) )
- 2021-12-28 freecad error.png (21.21 KiB) Viewed 2797 times