topic Betreff: Thickening high triangle solid in Fusion Design, Validate & Document Forum

Thickening high triangle solid

trhorgan — Wed, 23 Apr 2025 00:09:44 GMT

Hello, So I am modifying these fenders I downloaded online as a mesh. To edit it I converted it to a solid. However, I suspect since it's a 3d scan, it's extremely thin, too thin for me to edit by doing fillets on anything. Im looking to thicken it so I can change fillets and faces, but it also needs to be thick enough to print. How can I thicken this when I would have to select every single triangle to extrude it? The thicken tool will not work

Re: Thickening high triangle solid

TheCADWhisperer — Wed, 23 Apr 2025 12:01:07 GMT

@trhorgan

No curves. Not one. All straight lines and planar faceted triangles.

Use only as reference in creating proper geometry.

Re: Thickening high triangle solid

TrippyLighting — Wed, 23 Apr 2025 13:23:46 GMT

@trhorgan wrote:

Hello, So I am modifying these fenders I downloaded online as a mesh.

No, no you won't 😉

At least not if you want usable and accurate results. If this is based on a scanned mesh, it looks like it has already been through a re-meshing software, alas with terrible results!

Even if this would be a quad mesh with clean topology, you would need to modify it to be able to thicken it.

Fusion is not the right software to work with that data.

Betreff: Thickening high triangle solid

wersy — Wed, 23 Apr 2025 13:31:52 GMT

How about using Blender?

https://www.youtube.com/watch?v=g1YOd632OcA

Betreff: Thickening high triangle solid

TrippyLighting — Wed, 23 Apr 2025 13:35:09 GMT

Have you opened it in Blender and looked at the mesh ?

What would thicken, or to be more precise the Solidify modifier do with this mesh? Have you tried it?

Betreff: Thickening high triangle solid

wersy — Wed, 23 Apr 2025 13:55:38 GMT

I don't use Blender.

It was really just a question - to you 🙂

Betreff: Thickening high triangle solid

TrippyLighting — Wed, 23 Apr 2025 14:36:31 GMT

@wersy wrote:

I don't use Blender.

It was really just a question - to you

Ahh, Ok!

Some observations:

The OP uploaded the .fbx. That cannot be opened in Fusion through the "Insert->Mesh" , so we can only open it through the file menu.

It converts online and can then be opened.

For an automotive fender it is magnitudes (10000 x) too small. Same when imported into Blender.

In Blender, many of the edges are marked sharp. I suspect this this comes from a re-meshing software. Instant Meshes does this, for example. However, InstantMeshes does not create such bad meshes.

I've highlighted in the screenshot below what I mean with "bad mesh". That can be "thickened" with the solidify modifier, but obviously, such "scraggly" edges wil be present on the offset geometry.

Then, of course, is is still a triangulated mesh.

@trhorgan can you elaborate what you end goal is with this model?

Betreff: Thickening high triangle solid

trhorgan — Wed, 23 Apr 2025 20:17:18 GMT

Thank you for the reply, the goal was to use these to put on a scale model possibly for an RC.