Frame Generator Sketch reference

[estewart3E8B6]

How can i find the sketch driving a frame generator Part ?

when using edit with frame generator the reference line is displayed . I cannot identify the name of this sketch. I need to modify this sketch and have no idea how to isolate it.

thanks for any help with this.   

[SBix26]

Hard to help when we have no idea what your file structure looks like.  But Frame Generator works with two assemblies, one the subassembly of the other.  The subassembly will show a component name Reference Skeleton.ipt, which is not editable and should be left alone, and also the frame components themselves.  The higher-level assembly includes the part file containing the reference geometry for Frame Generator, named whatever the creator of the file wanted to call it.  It should be the first component in the higher-level assembly.  All frame editing should be done from the higher-level assembly, and edits to the skeleton should be done in the part file where it was originally defined.

If you need more help, please include an image of your model browser so we can refer to files by their names in your context.

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Sam B

Inventor Pro 2025.2.1 | Windows 11 Home 24H2

[estewart3E8B6]

Thank you for reply. Correct me if am wrong, Are you saying there is no functionality in Inventor to isolate a frame generator member and the sketch that drives the part? eg, constrained to.      

[kacper.suchomski]

This is due to a manually created skeleton file in the higher level assembly, as Samuel mentioned.

[estewart3E8B6]

The Skeleton was not manually created? 

[kacper.suchomski]

Sorry, I don't understand the question.

[estewart3E8B6]

Is there no functionality in Inventor to isolate a frame generator member and the sketch that drives the part? eg, constrained to?      

[EdvinTailwind]

Normally there is an IPT file that contains the skeleton, which consists of one or several 2D and 3D sketches that you can adjust however you like. This IPT file is normally grounded in the Main Assembly file you're working with (that's how I do it, at least). The IPT can of course be hidden an un-enabled, making it harder to locate in the assembly. 

Like this:

As mentioned above, the stuff called "Reference Skeleton", are actually not editable.

[estewart3E8B6 · Accepted solution]

Thanks for your Effort, I have multiple Skeleton reference part (ipt.) file.

I have confirmation from Autodesk that Inventor does not have this functionality. 

[NachoShaw]

to be clear, what you want is achievable but at top level. When working with Frame Generator parts, you first create either a 3D sketch or a solid that represents your frame shape. You add that to the assembly then use Frame Generator to create members on that shape. As you create the members, you select the geometry from you shape and the member will inherit that particular sketch line info. If you need to edit the length, you edit the skeleton shape component and the members will update.

Here is a mock Frame Generator frame with a skelatal model

now i'll change my skelatal base model to new sizes

and now you can see, the model has updated.

You dont edit the members at part level with Frame Generator, you change the top level skelatal base model to drive the members

[estewart3E8B6]

Nacho, I am familiar with the workflow, as mentioned previously i need to identify the sketch that drives the member. I have more then one sketch driving the the frame skeleton. the sketches are in multiple ipt. files. As you can see I have marked the solution was marked ACCEPTED SOLUTION

[SBix26]

Seems to me it wouldn't be difficult to simply highlight each of the sketches that make up your skeleton (by sliding the cursor over their browser entries) and see which one is in the frame member of interest.  Or am I missing something?  How many sketches are we talking about?

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Sam B

Inventor Pro 2025.2.1 | Windows 11 Home 24H2