More specifically. On both 0.19 and 0.18
OS: Windows 10
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.4 (GitTag)
Build type: Release
Branch: releases/FreeCAD-0-18
Hash: 980bf9060e28555fecd9e3462f68ca74007b70f8
Python version: 3.6.6
Qt version: 5.6.2
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: Russian/Russia (ru_RU)
OS: Windows 10 (10.0)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.19510 (Git)
Build type: Release
Branch: master
Hash: c3eb6d9001c4d60ff7f7cae89f50bd3c965a9940
Python version: 3.7.3
Qt version: 5.12.5
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: Russian/Russia (ru_RU)
a)
Applying Thickness(PartDesign or Part do not mater) will cause a crush, IF a part is made with splines. I was able to produce a reliable test case.
That will crush right after clicking the button.
b)
Apllying thickness to Slot- loft, also crush. Ther is no splines, only lines and arcs.
this will crush
But, if they do not rotated between each other, no too curved walls, then it works ok.
if one of the slots is different size its ok too
here is the files
0.18 only splines lofted
0.19 splines and slots
***
Part two
One might think that this design will cause crush too? well, no. It will hide part initialy, but if you toggle "Make thickness inwards" few times and tune thickness value a bit, it works. And not only on flat faces, but on curved ones too! Very interesting.
Crushing is totally not ok, but after some googling and reading i came to realization that may be opencascade issue. It known for crushing in case of curved geometry https://tracker.dev.opencascade.org/view.php?id=30003
Thickness - kill
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Thickness - kill
Last edited by l3VGV on Wed Feb 19, 2020 4:52 am, edited 3 times in total.
Re: Thickness - kill
… I confirm (FC0.18.4 Win10-32)
Making these lofts with periodic BSpline - like you did - thickness leads to an immediate crash.
(Periodic BSpline has a flaw concerning its misplaced seed line)
But using normal BSpline with tangent constraints Thickness and 3D-Offset work normally.
Making these lofts with periodic BSpline - like you did - thickness leads to an immediate crash.
(Periodic BSpline has a flaw concerning its misplaced seed line)
But using normal BSpline with tangent constraints Thickness and 3D-Offset work normally.
- Attachments
-
- thicknesss_0.18_2.FCStd
- (54.85 KiB) Downloaded 30 times
Re: Thickness - kill
I edited first post a litle bit. added one more test case what cause a crash but do not based on bsplines(lofted slots).
Thank you! Now i have to learn how to live with that.