Unable to Find Sketches for Chassis made in Fusion 360

[Anonymous]

I'm fairly new to the whole Fusion 360 ecosystem and was recently asked to make a few modifications to an existing chassis design via Fusion. I assumed this will be similar to Weldments on SolidWorks, however, for this chassis, i am unable to find any sketches which might have been used to create the structure. I can only see "Extrude XX" (XX is numerals) under the Chassis tree, and when i right click on them, no edit sketch feature is to be found. 

I would like to know how do I go about editing the main sketch of the chassis. Any help is deeply appreciated.

P.S. The Assembly has several other parts which I have opted to ignore by hiding them.

[Rushikesh.kadam]

@Anonymous Can you share the assembly file to take a look?

If you are in the parametric mode you can do it from the timeline by right-click on the feature and selecting edit profile sketch. But from the description, it looks like the design is in direct mode. 

Sharing the file will be helpful.

Regards,

[Anonymous]

Hey, sharing the file will not be possible due to company policies. However, please do let me know about the direct mode?

[TheCADWhisperer]

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@Anonymous wrote:

Hey, sharing the file will not be possible due to company policies. However, please do let me know about the direct mode?

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Make up a dummy file that will illustrate the problem.

Direct Editing is the most basic form of editing solid models.  Even works in AutoCAD.

There are no tools similar to "Weldments in SolidWorks".

For the equivalent you will need Autodesk Inventor Professional - Frame Generator (and Weldment) tools.

[Anonymous]

As you can see in pic 1, there are reference sketches which can be edited to change dimensions and along with it, the pipes as well. In the the 2nd image (which is the file on which i intend to carry out my changes) there are no such reference sketches, and the tubes are all shown as individual faces and extrusions. I am very confused as to what this means, and have no idea how to proceed further.

i hope the picture "snip snap" will be of some help given my inability to share the file.

[TrippyLighting]

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@Anonymous wrote:

As you can see in pic 1, there are reference sketches which can be edited to change dimensions and along with it, the pipes as well. In the the 2nd image (which is the file on which i intend to carry out my changes) there are no such reference sketches, and the tubes are all shown as individual faces and extrusions. I am very confused as to what this means, and have no idea how to proceed further.

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What that means is that the original designer used direct modeling mode to create the design.

That will make it very cumbersome and laborious to change it.

There are many aspects where Fusion 360 and SolidWorks are similar, but there ate a lot of areas where they differ. As such my recommendation is for you to go through one of the tutorial courses here.

Assuming that with some experience in SolidWorks you can just pick up Fusion 360 is not a good idea.

I speak from experience. I started with Fusion 360 after 15 years of SW   😉

[Anonymous]

So suppose i do want to make changes in this current file, without any sketches, do you have any suggestions for me as to how i approach it?

[TheCADWhisperer]

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@Anonymous wrote:

So suppose i do want to make changes in this current file, without any sketches, do you have any suggestions for me as to how i approach it?

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You would make the changes the same way you would in SolidWorks.

(Edit Sketch if parametric sketch based, Direct Edit if not parametric sketch based.)

Can you File>Export an illustrative (no proprietary data) *.f3d file to your local drive and then Attach it here to a Reply?

[TrippyLighting]

Yep, I'd watch this Autodesk University Class recording that explains many direct modeling techniques.