T-Spline Curvature Issue? Unable to Thicken

T-Spline Curvature Issue? Unable to Thicken

rwetzler
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Message 1 of 5

T-Spline Curvature Issue? Unable to Thicken

rwetzler
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Enthusiast

Hello - I'm new to T-Splines and trying to get a better understanding of it. I know this model has curvature issues after running the analysis but how can I solve the problem without having to recreate the whole part over again. It seems that if I try tweaking it just makes it worse or distorts my original shape to much.

When I jump over to model model it fails on thicken.

 

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Message 2 of 5

cekuhnen
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Your mesh is pretty messy - it has many triangles that is not ideal for TS.

 

Here I cleaned up the work and created clean quad topology flows to guide the surfaces better

 

1.PNG

2.PNG

3.PNG

 

 

In general work with less points to rough out the proportions and try to sculpt the details needed later locally. TS will take some time to get used to. It is not easy.

 

 

a note about curvature: TS does currently not have the ability to create a surface that is suitable for the curvature comb. I would rather use the zebra look or use a glossy material and rotate to observe the flow of highlights. 

Claas Kuhnen

Faculty Industrial Design – Wayne State Universit

Chair Interior Design – Wayne State University

Owner studioKuhnen – product : interface : design

Message 3 of 5

cekuhnen
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Mentor

So for example here I rebuild the design with less faces to simplify it.

This means less points less work less pain more smooth transitions.

 

Fusion TS has ngons so you can add an edge on a face if needed to pull in some details if really needed.

 

6.PNG5.PNG

 

 you can also convert TS to BREP with keeping the TS patch layout - only ngons will be filled differently then

Capture.PNG

Capture2.PNG

 

 

And if needed that star pattern you could delete and with the patch tool fill that surface with a single patch.

Capture3.PNG

Claas Kuhnen

Faculty Industrial Design – Wayne State Universit

Chair Interior Design – Wayne State University

Owner studioKuhnen – product : interface : design

Message 4 of 5

rwetzler
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Wow, nice work on fixing my mess. I suppose this will take a lot of practice to get the hang of, as you state "It's not easy".  I'm use to using Inventor and doing mechanical detail stuff which is more of an exacting science. I touched base on some of the surfacing aspects in Inventor, found it quite difficult to learn so sort of dropped it. Thought I'd give this T-Spline stuff ago. When I watch the you tube video's you guys produce you make it look easy, lol and everybody seems to try to go so fast. Please slow down..... down.. so we can see mouse and menu clicks, etc.  I think it would be useful for beginners like myself to create a video showing good surface work vs. sharp edgy trianglulated work like mine and the pitfalls it will create. Kind of show what will fail (and knowing it will by Zebra or Curvature Map Analysis). I will try to absob all the info. you provided and tinker around over the next few weeks or so to better understand the concepts and work flows. At any rate thank for your outstanding response.

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Message 5 of 5

cekuhnen
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Polygon modeling like in ts but you should follow some rules or concepts and with some practice you will get the hang of it.

Claas Kuhnen

Faculty Industrial Design – Wayne State Universit

Chair Interior Design – Wayne State University

Owner studioKuhnen – product : interface : design

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