topic Re: Extrude to the boundary of the 3d sketch profiles - how? in Fusion Design, Validate & Document Forum

Extrude to the boundary of the 3d sketch profiles - how?

salesV7VY3 — Thu, 24 Apr 2025 12:14:12 GMT

Hello,

I had to create this odd object in 3d sketch. it has a number of different dimensions, non constrained.

I generally can use basic tools to manage extrusion of the equalised surfaces. this one is a cracker. Any advise is appreciated.

Re: Extrude to the boundary of the 3d sketch profiles - how?

VincentSheehan — Wed, 30 Apr 2025 13:41:26 GMT

Is this a Fusion question?

Ask your question here.

https://forums.autodesk.com/t5/fusion-design-validate-document/bd-p/124

Re: Extrude to the boundary of the 3d sketch profiles - how?

jhackney1972 — Wed, 30 Apr 2025 16:58:16 GMT

You can use Surfaces and the Patch command to close in the sides. You make it a solid using the Stitch command. Not sure what you want to do with the Circle, but if it is to be a hole, you can Extrude it now to the depth or through. Model attached.

If this answers your question, please select the "Accept Solution" on my post. If you need further help, please ask.

Re: Extrude to the boundary of the 3d sketch profiles - how?

laughingcreek — Wed, 30 Apr 2025 18:02:41 GMT

out of curiosity, where are you trying to go with this? is the intent really for there to be 179.9 degrees between these 2 faces, or is this the result of difficulty with 3d sketches?

Re: Extrude to the boundary of the 3d sketch profiles - how?

TrippyLighting — Wed, 30 Apr 2025 18:05:51 GMT

@salesV7VY3 wrote:

Hello,

I had to create this odd object in 3d sketch.

What makes you believe that?

This is a very under constrained sketch. Extrude is the wrong tool for this geoemetry, at lest when observing the sketch.
You can patch and stitch this with the surface modeling tools.

My recommendation would be to recreate this from scratch with fully defined 2D sketches.

Re: Extrude to the boundary of the 3d sketch profiles - how?

TheCADWhisperer — Wed, 30 Apr 2025 18:57:41 GMT

@salesV7VY3

My Attempt.

I could have done Sketch4 in Sketch3, but wasn't thinking clearly.

Edit: And now that I look at it, I guess I could have used only 1 sketch and still did the same Extrudes, but I would have fully defined my sketch.

Re: Extrude to the boundary of the 3d sketch profiles - how?

johnsonshiue — Wed, 30 Apr 2025 20:37:47 GMT

Hi! This can also be done using a series of Lofts.

Many thanks!

Re: Extrude to the boundary of the 3d sketch profiles - how?

sanjay_jayabal — Sun, 04 May 2025 15:22:58 GMT

While there is no single right way to do it, I typically like to break down geometry creation into several features so that changes to the design don't become too difficult. Attaching the model I created.

Best Regards,

Sanjay Jayabal.