bend twist unroll lattice

[cekuhnen]

Hi folks,

Would it be possible for a parametric modeler to include commands such as

lattice twist taper bend and also unroll?

For example in the image below you can see the blue lattice that I use to taper

and the white curve I use to bend the geometry along.

The far leftt model is the cad data the middle and right are sub-d rebuilds

Would such modifiers be too CPU taxing for a parametric system?

I know Rhino Alias and such all have them but well never with a design history.

I am not sure about SolidThinking.

[bob_holland]

Claas,

At the present time we are not able to do product the kind o f results that you are looking for.

We would like to but it will probably be a while.  (It is not on the road map at this time)

The best that we can probably do is an intersection of two profiles for a starting point.

Thank you.

[cekuhnen]

Hi Bob

I assumed this might be a tough thing for a parametric modeler. But it would take fusion out of the gang of common workflow apps.

Thanks for the info I understand

[keqingsong]

Hey Claas, 

This workflow isn't exactly what you're looking for, but will let you achieve the same results. 

[cekuhnen]

Hi Keqing,

This works pretty well, as long as the thickness remains the same. When the ends taper it gets a little more tricky also the length in your example changes.

But as I wrote a true parametric approach might be hard - thats why I use my trusted polygon sculpt workflow. That one might actually be something Fusion and TS should really look into.

After having finalized the proportions the design can then still be re-sketched via traditional solid/patch modeling tools.

In Alias it is pretty common to sometimes do some poly bakes defor those, study them and then go back and to it right with NURBS.

[malcolm.pearcey]

Hi , 

Just watched your video as i am trying to learn the basics of modelling with a view to kayak design, unfortunatly kayaks are pretty much all compound curves , how can i proceed ? your video is fine for a curve in a single plane ?

Thanks

Malcolm 

[PhilProcarioJr]

Solidworks can do this and keep design history so it's possible for parametric software to do it. Although I have no idea how hard it would be to implement. using @keqingsong method works visually but how would you get the length of the part correct for manufacturing? Even in sheet metal bends you need bend tables of the material used to get the proper lengths. Just curious as to how this could be done without the bend, stretch and compression data. 

[TrippyLighting]

That fuctionality is available in Blender ( which Claas also uses frequently) , so should be possible at least in the T-Spline environment. The modifier Stackin Blender  as a lot of very useful tools that would be great to have in Fusion 360.

[cekuhnen]

you bend or you dont - the rest are non optimal work arounds

[guilekubo]

Hi, I designed a retilinear strip to unroll in the hand of the user, the strip is made of TPU, so it's flexibel and I need to put the strip in the assembly model to do some renders. Any one knows if I can do it with Fusion? 

[jhackney1972]

Pictures of what you are trying to achieve would be helpful.

[TrippyLighting]

Can you perhaps explain what your design has to do with this topic?

[guilekubo]

I designed this strip flat, but it is flexible.

And I need to show it in the assembly model to render it, but I don't want to model another one in the final position.

The final position would be something like this 

And I need it to have the flat model so I can 3D print it flat with flexibel material.

Thanks for the help.

[guilekubo]

I saw the video above and in the video he says that we can't model something strait and after modeling make it curve, but that Autodesk was working on that.

[TrippyLighting]

The best approach is actually to model this with a sheet metal workflow.

that way yo have a true representation of the flat and the bent shape. It's a bit long to explain, but there are numerous youtube tutorials available that show the technique.

[guilekubo]

I tried it before I post my first question, but in that moment the software couldn't compute my spline whith flat ends in a flat pattern, but I will try it again modifying my sketch.

Thanks for the helping.

[jhackney1972]

Here is what I gathered from your description.  The Screencast will explain what I did. To Flatten it simply drag the timeline marker one step to the left.  Model is attached.  If you need further explanation, let me know.