topic Re: Sweeping a profile along a sketch loop, getting self intersecting error in Fusion Design, Validate & Document Forum

Sweeping a profile along a sketch loop, getting self intersecting error

sunfffd — Tue, 02 Feb 2021 19:19:50 GMT

Hi guys, I am trying to creating a Zen garden-like profile along this offset sketch path.

With one triangle in the profile I can sweep successfully.

But with five like in the screenshot, I am getting self-intersecting error.

What am I missing ? Thanks.

The problem came when the profile is sweeping through the point with a sharp turning angle.

I was able to sweep only when I adjust the sketch with a less acute angle.

Re: Sweeping a profile along a sketch loop, getting self intersecting error

jhackney1972 — Tue, 02 Feb 2021 19:01:10 GMT

The forum users are missing your model, please attach it. If you do not know how to attach your model, open it in Fusion360, select the File menu and then choose Export and save the .F3D file to your hard drive. Then use the Attachments section of a reply forum post to attach it.

Re: Sweeping a profile along a sketch loop, getting self intersecting error

jeff_strater — Tue, 02 Feb 2021 23:08:51 GMT

yes, sweep does not allow the resulting body to intersect itself. You have a very wide profile going around a very tight curve - that is going to self-intersect, and that will generate an error. It is just a fundamental limitation of the sweep tool. One triangle works because it is smaller than the radius of curvature at the smallest point in that path. Five does not because it is too big.

Re: Sweeping a profile along a sketch loop, getting self intersecting error

shahriarsifat1802164 — Wed, 03 Feb 2021 05:23:57 GMT

Hi,
Yes, the sweep tool does not allow you to create a geometry that intersects itself.
Thank you.

Re: Sweeping a profile along a sketch loop, getting self intersecting error

shahriarsifat1802164 — Wed, 03 Feb 2021 05:26:09 GMT

My recommendation would be, please.
1)Make the sweep separately and join them.
2)Or, reduce the contraction radius in the path.
Thank you.

Re: Sweeping a profile along a sketch loop, getting self intersecting error

shahriarsifat1802164 — Wed, 03 Feb 2021 05:44:24 GMT

I am providing a screencast shortly.
Have patience.
Thank you.

Re: Sweeping a profile along a sketch loop, getting self intersecting error

shahriarsifat1802164 — Wed, 03 Feb 2021 05:45:56 GMT

Here is the link you the screencast. Make sure you select joints.

Sweep multiple times to avoid errors. | Fusion 360 | Autodesk Knowledge Network

Thank you.

Re: Sweeping a profile along a sketch loop, getting self intersecting error

etfrench — Wed, 03 Feb 2021 05:52:14 GMT

My Fusion 360 must be broken😀 This is one I drew before I saw the OP attached the file:

It's clearly self intersecting 😀

Here's the OP's file where the only change is making the sweep:

Is my Fusion 360 broken?

Re: Sweeping a profile along a sketch loop, getting self intersecting error

shahriarsifat1802164 — Wed, 03 Feb 2021 05:54:32 GMT

Lastly, if you found these information helpful please give the as SOLUTION.
THANK YOU.

Re: Sweeping a profile along a sketch loop, getting self intersecting error

sunfffd — Fri, 05 Feb 2021 07:18:55 GMT

@shahriarsifat1802164 Thanks! Can't believe the lines that separating the profile make such difference!

Thanks everyone for helping!