Relatively new to Fusion, how can I duplicate the shape
I wouldn't attempt this with fusion. it's simply the wrong tool. fusion is terrible with meshes, especially dense organic ones like this one. if you really wanted to do with with fusion I would use the mask as a visually reference only and recreate it from scratch using t-splines. but there is a bit of a learning curve with that route.
alternatively, I would suggest using mesh mixer. you can use the drag brush in sculpting mode is message the eye sockets into a new shape. here is a video of that process-
Editing meshes isn't something to do in Fusion 360 but here is a quick video on how you could create an infill for the eye socket, I hope it helps.
Saeed Hamza
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I have managed to convert the .stl to a solid body (and it was a tough mesh to convert!)(but I think Scale is off)(you can fix that in your Slicer).
Just a start and as others have said Fusion is not super good on Meshes.5
@Warmingup1953 wrote:
I have managed to convert the .stl to a solid body ....
Not a recommended technique for 95% of all triangulated meshes, including this one.
Please explain why.
If you post non recommended techniques just to get a user to finish a project, you should always explain why it is not a recommended technique. It has nothing to do with Fusion 360 mesh capabilities. Dig deeper!
@Warmingup1953 wrote:
I have taken the liberty of sharing this Micro-tutorial to another Mesh post on this Forum. Many thanks for your clear and concise explanations.
An so the widespread proliferation of confident incompetence continues 😉
All CAD software natively represents geometry with
- Analytical geometry - whole or trimmed flat surfaces, cylinders, cones, spheres etc.
- NURBS for curved surfaces with varying/arbitrary curvature.
- For solid models these surface representations above might be wrapped into a BREP.
This representation is mathematically precise without limits in resolution, and with topology.
Meshes, and in particular triangulated meshes are non-native geometry. Meshes have a finite resolution and no topology. That is particularly the case for meshes from 3D scanned geometry.
Some CAD software packages have specific tool sets to recreate CAD models from 3D scanned meshes, but are prohibitively expensive for occasional, or hobby use.
The workflow presented by @SaeedHamza is going to "get you by" for this particular project. However, this forum is chock full with threads where users have posted problems when modeling with meshes that were directly converted into a solid.
When converting a mesh directly into faceted solid body, each of these facets is represented by an analytical geometry. Computing Analytical geometry is much more involved than handling mesh geometry. Even when reducing the mesh density with the tools in the Mesh tab, this conversion creates a model with thousands of surfaces.
Often when continuing to model with such objects near tangency and near coincidence issues prevent modeling operations from completing.
Reverse engineering meshes or working with mesh geometry in a CAD application is a pretty deep subject and there are many caveats and gotchas.
Don't expect for this workflow to be successful for every mesh 😉
Your welcome.
If you take another look at the video, the edges selection was skipped, but I selected points and not edges with the 3d sketch turned on (Pointed out in the video), and you can't really select all of them at once because they are not tangentally connect edges or a closed/open loop, so you'll have to select them one by one.
And as @TrippyLighting said, this method gets you by for this project, other mesh projects might have a completely different approach, that is if it can be done in Fusion since it's not the best software for handling meshs.
Saeed Hamza
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Oh I see, sorry I thought you meant the brep edges 🙂
But it's not a single click, if you double click a T-Spline edge, it selects the whole loop.
Saeed Hamza
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