Large Assemblies: Derive Individual Components FAIL

[tookemtoni]

Hello There,

The created derive is missing components.

It was created using a in canvas component selection filter > create selection set > create derive and use the selection set for the derive selection. 

Root component was not selected .  See demo video. 

[TimelesslyTiredYouth]

Hi @tookemtoni 

I've taken the time to look over your query, Although I do not have experice of the derive tool causing the dissapearance of some bodies within my component, I have a few possible issues and solutions to them that you can try

ISSUES

1. Selection Scope: When deriving, ensure that all 183 bodies are selected in the scope of the operation. Sometimes, only visible or specific bodies are included by default, leading to fewer derived outputs.

2. Body Visibility: Some bodies might become hidden during the operation. Check your visibility settings or browser tree to confirm if the missing bodies are simply turned off.

3. Combine or Merge Operations: If the derive operation automatically combines bodies (e.g., joining overlapping geometry), it might reduce the count. This could explain why 183 bodies are reduced to 83.

4. Bodies Excluded by Constraints: Derived components may be subject to certain constraints or exclusions based on size, position, or visibility. Ensure no filters are unintentionally excluding bodies.

5. Feature Suppression: In some cases, features or bodies within a component may get suppressed when deriving. This could happen if parent-child dependencies are broken during the operation.

6. Export or Derive Settings: Check the derive settings to ensure all components and bodies are being included. Certain options may default to exporting only specific types of geometry.

Suggestions to Fix the Issue:

• Inspect the Component Tree: Double-check the visibility and inclusion of all bodies in the derived file.
• Undo and Reselect: If possible, undo the operation and carefully reselect all the bodies for deriving.
• Review Settings: Look into derive-specific settings and ensure "All Bodies" or a similar option is enabled.
• Check Logs or Notifications: Some software generates warnings or logs during the derive process that might explain why certain bodies were excluded.

[tookemtoni]

I reviewed you reply....and the problem still stands:

Why would I get this beautiful confirmation in the derive dialog that all of the components are there and then the actual derive is missing the components?

[TimelesslyTiredYouth]

HI @tookemtoni 

In Fusion 360, this issue likely stems from a bug or broken references in the derived components. While the dialog confirms all bodies, suppressed, construction, or error-prone geometry might fail during execution. To resolve this, ensure all components are visible, fully resolved, and not suppressed or marked as reference geometry.

Try deriving smaller sections to isolate the problematic bodies, specifically the ones that disapear to see if the problem is from specific bodies/components, causing fusion to be confused and "backlash" by removing bodies/components to keep structuraly integrated,ect...

I believe that this problem is caused by maybe one or 2 component/body pieces

With regards 

Ricky

[TrippyLighting]

Can you share the model? Maybe the Slack channel is a better option for this ...

[TimelesslyTiredYouth]

Sorry for asking but just trying to learn (I don't spend enought time on fusion and not nearly enough on forum?

What is the slack channel?

[TrippyLighting]

It is a Slack channel accessible to members of the Fusion team and some Autodesk Expert Elite members by invitation.

It is not accessible to the general public.

@tookemtoni is active there and that might be a better way to share a design than posting it on this public forum. 

[TimelesslyTiredYouth]

thank you for the information, sorry for being nosy

[tookemtoni]

I just reported to the configurations slack. I will share my results here later.