topic Re: Why cant I close the end cap on these simple surfaces? in Fusion Support Forum

Why cant I close the end cap on these simple surfaces?

simon.dyer — Thu, 11 Feb 2021 22:09:17 GMT

Ive tried lofting, extending and trimming ( crashes Fusion).

Help please - getting frustrated.

Ive deleted the original scan so there are some warnings but not related to the two surfaces

Re: Why cant I close the end cap on these simple surfaces?

jhackney1972 — Thu, 11 Feb 2021 23:41:47 GMT

Do you want the indicated area closed in with the rest of the face?

Re: Why cant I close the end cap on these simple surfaces?

simon.dyer — Fri, 12 Feb 2021 03:15:11 GMT

The cutout is deliberate. I want to close the ends of the two surfaces.

Re: Why cant I close the end cap on these simple surfaces?

simon.dyer — Fri, 12 Feb 2021 04:13:55 GMT

Further to my initial message, admitedly this is my first time modelling using surfaces - I usually use solids but often get into trouble with complex lofts, so thought its time to learn surface modelling. I watched the very useful video on 3D sketching and surfacing found here https://www.youtube.com/watch?v=7F2SkJhI2g0 and although there are some strange steps, I thought these two simple surfaces could be joined into a solid. Im surprised that if I use the extend and trim method, then Fusion crashes. If I try to loft between the edges where I want to close the solid, I get self intersecting errors.
Is there another best practices method I should be using?

Re: Why cant I close the end cap on these simple surfaces?

simon.dyer — Fri, 12 Feb 2021 05:57:39 GMT

Here you can see the result when I try to extend and trim

Re: Why cant I close the end cap on these simple surfaces?

jeff_strater — Fri, 12 Feb 2021 05:38:44 GMT

loft is the tool to use. The problem is the default point mapping is wrong. You need a rail to guide the loft. I created two, but it turns out you only need one.

Re: Why cant I close the end cap on these simple surfaces?

simon.dyer — Fri, 12 Feb 2021 06:02:16 GMT

Thanks Jeff !!
You can use the same file if you need it for the crash report (#300914105) using trim and extend method