adaptive

[mortada1998]

Why is this command not active for this part, and when I open a new assembly file this command is active for the same part

 

[A.Acheson]

It looks like you have copies of the same part in the assembly. Adaptive can only be used on one part if used in multiple assemblies. 

https://knowledge.autodesk.com/support/inventor/learn-explore/caas/CloudHelp/cloudhelp/2018/ENU/Inve...

• Only one occurrence of a part defines its adaptive features. If you use multiple placements of the same part in an assembly, only one occurrence can be adaptive. However, all occurrences reflect changes to it, including placements in other assemblies.
  Note: A component cannot be both adaptive and flexible at the same time. You can switch to flexible status to see the same subassembly with its components in multiple positions in an assembly.

[cadman777 · Accepted solution]

If I was you, I would not use Adaptivity except under very special circumstances.

You will find it will bit you in the ankles down stream when you have to change your parts.

The only time I use it is when I manually make the same exact part except it varies in length.

Then I copy each part to a new name and change the length using assembly constraints.

That's how I've always done piping runs.

Place each fitting and then run an adaptive pipe between the fittings.

Works great with no hassles compared to the Piping module, etc.