[Solved]Shape Binder and clone of a object

[koluna]

can you upload that a2+ free document?

Yes, I can.

[koluna]

I forgot to attach an example image. Sorry, see back.

I tried to watch Paul Randal's video. He a cool guy, but he speaks very quickly and I cannot understand him

[chrisb]

I cannot reproduce the issue. If I take your file, create a body, select "Motor Bracket" and add a ShapeBinder to the Body it is in exactly the place where "Motor Bracket is. It works on Ubuntu and MacOS . I would be surprised if it doesn't work on Windows, but someone else should verify.

OS: Ubuntu 16.04.5 LTS
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.15694 (Git)
Build type: Release
Branch: master
Hash: 96dee91d5e7d7fd37f43a4dcf406a120ae1f1b8a
Python version: 2.7.12
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: English/UnitedStates (en_US)

OS: macOS 10.13
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.15525 (Git)
Build type: Release
Branch: master
Hash: 1a7d3d9a37fe43468c8ac84590c1db53e2b2000a
Python version: 3.6.7
Qt version: 5.6.2
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: German/Germany (de_DE)

[koluna]

Did You see the video in the first post?
Did You try my "printer" file?
The problem is with the clone of Motor part. The original object is ok.

[koluna]

https://yadi.sk/d/jAU4GpkadOS_Cw

See this file, please (it is without any external workbenches).
The Shape Binder for the clone has a wrong orientation and position.

[chrisb]

Did You see the video in the first post?
Did You try my "printer" file?
The problem is with the clone of Motor part. The original object is ok.

I had checked the file "Motor part.FCStd" from your upload. It had no clone. I will have a look at the new file.

[DeepSOIC]

I have checked it with the very first (big!) file. There is a problem: if I shapebinder the whole "Left motor part"(Clone004, a Draft Clone), and change "Trace Support" of shapebinder to True, the yellow thing is where it's supposed to be. But if I shapebinder only a face of "Left motor part", the face is somewhere else. If I select two faces, the shapebinder is in yet another place. There's obviously something really buggy in there.

[DeepSOIC]

I'll try to fix it in the weekend, but I don't promise.

[chrisb]

I will try to extract a simple use case. It might be helpful for error search and testing.

[chrisb]

I have seen this issue twice now and in both cases was assembly involved.

The real problem is not the ShapeBinder, that is in fact shown in the right place, the problem is the clone or an element in the Part container. I have simplified the file a bit further, so that the Part contains only 2 objects. If I delete "GT2 Pulley 20 Teeth" the MotorBracket all of a sudden pops to the position where the ShapeBinder is. The ShapeBinder seems to stay in place only because it is broken due to the now missing face:

beforeDelete.png (11.84 KiB) Viewed 461 times

and afterwards and performing a recompute:

afterDelete.png (11.3 KiB) Viewed 461 times

The FreeCAD file attached is the state before delete.