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IDProjectCategoryView StatusDate SubmittedLast Update
0002904PartDesignBugpublic2017-02-17 01:552017-02-17 17:12
ReporterLeoTilson Assigned To 
PrioritynormalSeveritymajorReproducibilityalways
Status closedResolutionno change required 
PlatformWindows 10 
Product Version0.16 
Summary0002904: Failure to pad sketch drawn on a face which has the same shape
DescriptionA sketch is drawn and padded. On one of the new faces a second sketch identical to the first is drawn. The second sketch fails to pad.

OS: Windows 10
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.16.6706 (Git)
Build type: Release
Branch: releases/FreeCAD-0-16
Hash: f86a4e411ff7848dea98d7242f43b7774bee8fa0
Python version: 2.7.8
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 6.8.0.oce-0.17
Steps To ReproduceThe simplest sketch that exhibits this failure is a teardrop shape.

1) Open a new document.
2) Sketch on xy plane
3) Sketch consists of two lines joined together. The two open ends of the lines are connected by an arc. The arc is constrained to one of the lines of the arc by a tangential constraint.
4) Pad the resulting shape.
5) On one of the resulting faces draw a sketch identical to the sketch of step 3. Constrain the diameter of the arc by equality with external geometry to the arc of the face in the pad.
6) Attempt to pad sketch fails.
Additional InformationI have been unable to gauge the minimal conditions under which this problem occurs. It seems to require at least one tangential and one horizontal or vertical constraint, and the two sketches need to be aligned.

I have tried this and similar models in versions of FreeCADfrom FreeCAD-0.15.4671_x64 to version FreeCAD_0.17.10061_x64_dev_win with similar results. Similar problems occur under the current Debian release of FreeCAD
TagsPart Design
FreeCAD Information

Activities

LeoTilson

2017-02-17 01:55

reporter  

LeoTilsonTest2.FCStd (9,505 bytes)
FirstPad.jpg (203,304 bytes)   
FirstPad.jpg (203,304 bytes)   
SketchOnFirstPad.jpg (317,429 bytes)   
SketchOnFirstPad.jpg (317,429 bytes)   
FirstAndSecondPads.jpg (205,611 bytes)   
FirstAndSecondPads.jpg (205,611 bytes)   

Kunda1

2017-02-17 02:44

administrator   ~0008328

@LeoTilson please open a thread on forum.freecadweb.org to generate discussion about this issue and then bidirectionally link thread <=> ticket
Thanks.

LeoTilson

2017-02-17 12:59

reporter   ~0008334

Issue presented to forum at: https://forum.freecadweb.org/viewtopic.php?f=3&t=20720

LeoTilson

2017-02-17 17:05

reporter   ~0008338

sgrogan pointed out to me that it was possible to force a recompute. This has resolved this issue.

Apologies if I have wasted anyone's time.

You are all of course well aware of how much we appreciate the splendid work which you all do.

Leo

Kunda1

2017-02-17 17:12

administrator   ~0008339

closed as 'no change required'

Issue History

Date Modified Username Field Change
2017-02-17 01:55 LeoTilson New Issue
2017-02-17 01:55 LeoTilson File Added: LeoTilsonTest2.FCStd
2017-02-17 01:55 LeoTilson File Added: FirstPad.jpg
2017-02-17 01:55 LeoTilson File Added: SketchOnFirstPad.jpg
2017-02-17 01:55 LeoTilson File Added: FirstAndSecondPads.jpg
2017-02-17 01:55 LeoTilson Tag Attached: Part Design
2017-02-17 02:44 Kunda1 Note Added: 0008328
2017-02-17 02:44 Kunda1 Status new => feedback
2017-02-17 12:59 LeoTilson Note Added: 0008334
2017-02-17 12:59 LeoTilson Status feedback => new
2017-02-17 17:05 LeoTilson Note Added: 0008338
2017-02-17 17:12 Kunda1 Status new => closed
2017-02-17 17:12 Kunda1 Resolution open => no change required
2017-02-17 17:12 Kunda1 Note Added: 0008339