topic My surface offset creates 2 bodies and does not close in Fusion Support Forum

My surface offset creates 2 bodies and does not close

autodeskN884Q — Thu, 17 Mar 2022 10:53:29 GMT

Hey there.

I extruded a shape which I wanted to create an offset of. But the offset is a) creating multiple bodies even though it's a chain selection and b) does not cover all of the original surface. You can see in the picture that the top right corner is missing.

What is wrong here and how can I get the offset to create a complete surface?

Export is attached

Thanks

Re: My surface offset creates 2 bodies and does not close

seth.madore — Thu, 17 Mar 2022 11:11:05 GMT

That's because it's putting it here.....well this is odd.

Re: My surface offset creates 2 bodies and does not close

seth.madore — Thu, 17 Mar 2022 11:17:39 GMT

Using some Construction planes and Axis, I decided to let it do the improper offset and then rotate it into position. I was then able to Stitch them all into one Surface:

Re: My surface offset creates 2 bodies and does not close

HughesTooling — Thu, 17 Mar 2022 11:47:08 GMT

Your emboss is leaving this sliver behind, do you want this? Seem to remember emboss does not like creating closed or overlapping features.

Because of this your next body has a gap, again do you want this?

Mark

Re: My surface offset creates 2 bodies and does not close

autodeskN884Q — Thu, 17 Mar 2022 11:49:12 GMT

Oh interesting. I didn't see that. And no I dont want that.

I used the loop length from the inspection tab of the surface for the sketch I deboss. Guess here is some rounding error going on?

Thanks for your help. Appreciate it

Re: My surface offset creates 2 bodies and does not close

HughesTooling — Thu, 17 Mar 2022 11:53:11 GMT

If you don't want the sliver and gap, split face amd press\pull is a better option.

All works correctly done like this, see attached file.

Re: My surface offset creates 2 bodies and does not close

autodeskN884Q — Thu, 17 Mar 2022 12:44:04 GMT

Update: okay thats working of course because I can use a surface offset from there on. But then I have the issue, that my inner offset isn't round anymore??

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old message:

Unfortunately that's not working for me - I think.

I want to create 2 separate bodies eventually which will look something like this

It's meant to be 3d-printed and put together. So I want to deboss the red part first and then create an offset from there which I can thicken back to the debossed surface ("extrude" it as new body if you want)

When I do it per split face + "q" then I cant create a new body. Hope that makes sense

Re: My surface offset creates 2 bodies and does not close

HughesTooling — Thu, 17 Mar 2022 12:48:26 GMT

@autodeskN884Q wrote:

Update: okay thats working of course because I can use a surface offset from there on. But then I have the issue, that my inner offset isn't round anymore??

That's only because the offset is more than the corner radius. EIther increase the corner fillets or decrease the offset.

Re: My surface offset creates 2 bodies and does not close

autodeskN884Q — Thu, 17 Mar 2022 12:49:34 GMT

Ohhh. I was a little hasty there. You solved my issue then. Thank you very much for your effort!