Case with a linear pattern from a hole not working in PDN

[alexis]

Hi all,

On a piece where pockets were already applied along linear patterns without any problem :

I try to do a linear pattern from a hole.

- Make as usual a Datum plane on the pad face.
- Attach a sketch on this datum plane.
- Place a circle in this sketch.
- Make a hole.
- Try a linear pattern from this hole. It should be along sketche's vertical axis or simply X axis. No way.

"One transformed shape does not intersect support. Transformation failed".

1) Note that after hitting "Cancel" in the pattern dialog, the datum plane goes
super small, until recomputed.

2) With a fresh document and a single hole on a single pad, linear pattern works fine.

3) In the attached file, replace the hole by a pocket or a pad, try the linear pattern, it works.

AFAIK it looks like a (small) bug...

Cheers,
Alexis


OS: Debian GNU/Linux 9.3 (stretch)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.17.13320 (Git)
Build type: Unknown
Branch: master
Hash: 12f3258ded6cd0471122c84ac5c43297812ac0c5
Python version: 2.7.13
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 6.8.0.oce-0.17
Locale: French/France (fr_FR)

[chrisb]

I can confirm the issue.

OS: Mac OS X
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.17.13346 (Git)
Build type: Release
Branch: (HEAD detached at 22ee06d)
Hash: 22ee06de8441bfcc9fded2c6de4232d763fb11bc
Python version: 2.7.14
Qt version: 5.6.2
Coin version: 4.0.0a
OCC version: 7.1.0
Locale: German/Germany (de_DE)

[NormandC]

Off topic but I couldn't refrain myself

- Make as usual a Datum plane on the pad face.

Why?!? What's to gain from creating a datum plane on a face, then attach a sketch to it? It amounts to attaching the sketch to the pad face. So why the redundant datum plane step?

Oh, and

OCC version: 6.8.0.oce-0.17

You would really gain from upgrading OCC to 7.1.0 at least, it solves a lot of issues, plus some Part tools require OCC 6.9.0 minimum.

It would not be difficult to repackage the opencascade packages we provide on the Ubuntu PPA for Debian.