Impossible fillet

[Anonymous]

I'm trying to model the shape in the picture and I got pretty already.

I'm getting stuck adding the "fillet" to blend together the revolutions of the spiral.

I understand that this is probably asking a bit too much of Fusion... anybody any tips or workarounds to get the blend in, or do I better switch to a surface modeler?

I also checked the sculpt workspace but I didn't see any tools / features there to help out with this problem.

Thanks!

[TrippyLighting]

Yes, this is a challenge when yu try to use the "stanradd" solid modeling fillet.

But I'd like to try my hand at it and see if this can be successfully completed using surfacing techniques.

Can you share your model ?

[Anonymous]

Hi Peter,

Cool! Thanks! I'll send you the link!

Hmmm... I don't see a private message option in this forum, here it is: https://a360.co/2NOYuBK

Thank you!

//remko

[Anonymous]

I studied the problem a bit more trying more and more things (also modeling the spiral cleaner).

And here's a file with some more fundamental tests: https://a360.co/2xlXAmT

My hunch so far is that this problem arises because of the multiple added lofts instead of a single continuous loft (which means that they become theoretically non-continuous).

Here ( https://a360.co/2QCAy3b ) you can see that I managed to "smooth out" the slight discontinuity by adding a fillet to the seams and then I finally managed to get a fillet in of 0.03 mm which is by far not enough as you can see in the reference picture.

I still hope you Peter or anyone else can help out with a solution or workaround for this.

Thanks.

[TrippyLighting]

As your shel is getting smaller towards the center even in an ideal case you'd have to create an increasingly smaller fillet.

However, you have to have clear overlap to have a good edge to elect from. This can get tedious.

As such I would probably attempt this in Sculpt mode. But I don't have the time to demonstrate this at the moment.

Even as a T-Spline the actual modeling I'd do in Blender.

[Anonymous]

Yes indeed ...

Thinking of solutions is starting to make my brain hurt ... (and t-splining this in a nice way does too)

Funny how "easy" and "logical" something like this is this is for nature 🙂

Suggestions still welcome. I'm not there yet.

[TrippyLighting]

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@Anonymous wrote:

Funny how "easy" and "logical" something like this is this is for nature 🙂

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Well ... once you do things for a few million years things become "second nature" 😉