Moving component to another component break joints

[maechtigermietz]

I am designing a 3D printer enclosure. I have a door component with joints to open and close the door. If I create a new component and put the door component inside the it my joints stop working. I recorded a video showing that behaviour.

I don't get an error or any warnings, missing references etc.

This is not the only file where this happens. 

Steps to reproduce:

1. Create a component with components in it

2. Add joints to components

3. Set rigid group

4. Test if joints work

5. Create a new component

6. Put the previous component inside the new component

7. Test if joints still working

8. See the issue

[g-andresen]

Hi,

please share a sample file

günther

[jeff_strater]

can you clarify step 3?  "Set rigid group"?  What rigid group are you creating?  If it is to something outside the sub-assembly, then it is not too surprising that this rigid relationship does not survive the move to another component.  However, any joints inside the sub-assembly should be fine.  In your door case, you may need to create a rigid joint between the frame or hinges to the frame.

[maechtigermietz]

I provided a testfile which shows the issue. It's a frame, door and a hinge. When you open the file you can open/close the door. If you drag one of the components to the "NewParent" component the joint breaks.

What I did: 

I set the door alu profiles as a rigid group and inside its own component.

I set the frame alu profile as a rigid group and inside its own component.

I also added the left part of the hinge to the door and the right to the frame.

I added a rotating hinge to the bolt and the left part of the hinge.

I then added a new component.

[jeff_strater · Accepted solution]

thanks for the clarification.  Yes, you are correct. Rigid group does not survive restructure operation, if all the referenced components do not move.  Instead, I believe that as-built rigid joint does survive.  In the video, I have created an as-built rigid joint between the frame and the hinge.  It does survive the restructure operation.

[maechtigermietz]

Thank you Jeff. That worked 🙂