Cannot turn surface into body

[zghan2005]

Hi, I'm trying to make some engravings into a tray using some sketches. However, I noticed that the tray I'm working with isn't a body but a surface. I tried using the stitch tool but it looks like there are random edges on the inside of the tray and I'm not sure how I would go about fixing those. Could someone provide me some guidance on how to fix this? My project file is attached.

[wersy]

First of all you should repair the mesh.

[TrippyLighting]

Not a day goes by on this forum when another unfortunate beginner soul downloads a mesh model from somewhere and runs into trouble using the imported mesh geometry for further modeling. There are thousands of threads like this one on the forums. The advice is almost always the same.

You would be better off using the imported geometry just as a visual reference and modeling this relatively simple design from scratch with native Fusion tools.

[wersy]

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@TrippyLighting  schrieb:

You would be better off using the imported geometry just as a visual reference and modeling this relatively simple design from scratch with native Fusion tools.

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And this is easy.
The sketch

Solid

Just follow the Timeline.

[zghan2005]

Thank you! I've also figured out how to repair the old mesh, I used the section analysis tool to delete some interior faces, and then used the patch tool to cover up the holes.