Issue with derive solids [ipt]

[nsatheesan34D64]

Hello

I have ipt file created by a user and checked into Vault. I am trying to derive solids from the base part file. However, I am unable to deselect Solids to create the part I intend to work on. I am using Windows 11, and Acad Professional 2021. Any thoughts?

[ampster40]

That software does not exist.

Inventor Professional 2021 I suspect hehe.

Could you please share the file so that we take a look at it and see what could be going on?

[SBix26]

Can you attach the multi-solid part here?  I can't think of a reason that Derive would not allow de-selection of solid bodies.

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Sam B

Inventor Pro 2025 | Windows 11 Home 23H2

[nsatheesan34D64]

Hi @ampster40 @SBix26 

Please find attached the part. I am not able to deselect Solids in this case.

[SBix26 · Accepted solution]

Change the Design View to Master, or at least deselect Associative.  For me the Derive dialog opens with the Isometric DV selected and the Associative button selected.  I can't select/deselect solid bodies while the Design View is associative, which makes sense.

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Sam B

Inventor Pro 2025 | Windows 11 Home 23H2

[James_Willo · Accepted solution]

Yeah as Sam says, this is usually related to the design view. Confused me for a while the last time I looked at it. 

[johnsonshiue]

Hi! Derive Assembly works the same way too.

Many thanks!

[nsatheesan34D64]

Hi guys,

Thank you it worked. Much appreciated.

@johnsonshiue @James_Willo @SBix26