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Thicken not good

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Message 1 of 6
danielND6TD
486 Views, 5 Replies

Thicken not good

danielND6TD
Contributor
Contributor

Hello.

 

The problema is when is use the thickness tool, in the corner in front of the ships`s hull dont make the thicknes like in the two corners oof the back. The thickness of the front is rounded, and the thickness of the back are perpendicular and square.

 

Captura.PNG

 

Thanks.

0 Likes

Thicken not good

Hello.

 

The problema is when is use the thickness tool, in the corner in front of the ships`s hull dont make the thicknes like in the two corners oof the back. The thickness of the front is rounded, and the thickness of the back are perpendicular and square.

 

Captura.PNG

 

Thanks.

5 REPLIES 5
Message 2 of 6
jeff_strater
in reply to: danielND6TD

jeff_strater
Community Manager
Community Manager

thanks for sharing that model.  Let me send this to our modeling kernel team to take a look to see if this is a bug or some other explanation.

 


Jeff Strater
Engineering Director
1 Like

thanks for sharing that model.  Let me send this to our modeling kernel team to take a look to see if this is a bug or some other explanation.

 


Jeff Strater
Engineering Director
Message 3 of 6
danielND6TD
in reply to: jeff_strater

danielND6TD
Contributor
Contributor

Thanks! Is very important to me to undertand this strange behavior of the tool. I think it`s related with the way of make the loft of the surface. I need a correct behavior off the thickness.

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Thanks! Is very important to me to undertand this strange behavior of the tool. I think it`s related with the way of make the loft of the surface. I need a correct behavior off the thickness.

Message 4 of 6

TrippyLighting
Consultant
Consultant

@danielND6TD wrote:

I think its related with the way of make the loft of the surface. 


 

Correct! The thicken tool cannot work correctly exactly because you are lofting into a singularity.

Lofting creates NURBS surfaces. The shape of NURBS surfaces is governed by a quad mesh of control vertices.

 

When lofting into a single pointing the CVs (control vertices) of that mesh collapse into that single point, the singularity.

That's why the thickening tool does not work. I used a higher end CAD software to visualize the arrangement of the CVs. As can be seen that application also thickens the same way Fusion 360 does it. 

 

Lofting_into_singulatity.PNGlofting_into_singularity_II.PNG


EESignature

1 Like


@danielND6TD wrote:

I think its related with the way of make the loft of the surface. 


 

Correct! The thicken tool cannot work correctly exactly because you are lofting into a singularity.

Lofting creates NURBS surfaces. The shape of NURBS surfaces is governed by a quad mesh of control vertices.

 

When lofting into a single pointing the CVs (control vertices) of that mesh collapse into that single point, the singularity.

That's why the thickening tool does not work. I used a higher end CAD software to visualize the arrangement of the CVs. As can be seen that application also thickens the same way Fusion 360 does it. 

 

Lofting_into_singulatity.PNGlofting_into_singularity_II.PNG


EESignature

Message 5 of 6
laughingcreek
in reply to: danielND6TD

laughingcreek
Mentor
Mentor
Accepted solution

Also, looking at your splines from sketch 1 and 2 with the curvature combs turned on, you can see that you end up with a very high rate of curvature right at the ends.  first pic is your curve, second pic is after I fiddled with the tangent handle.  doing this for the spline in sketch 1 and 2 resulted in the model you see in the third pic (and attached.) 

As a side note-In general, your using to many control points on your splines.spline curvature.JPGbetter curvature.JPGresult.JPG

2 Likes

Also, looking at your splines from sketch 1 and 2 with the curvature combs turned on, you can see that you end up with a very high rate of curvature right at the ends.  first pic is your curve, second pic is after I fiddled with the tangent handle.  doing this for the spline in sketch 1 and 2 resulted in the model you see in the third pic (and attached.) 

As a side note-In general, your using to many control points on your splines.spline curvature.JPGbetter curvature.JPGresult.JPG

Message 6 of 6
danielND6TD
in reply to: laughingcreek

danielND6TD
Contributor
Contributor

Thanks so mcuh. Now i have a more perfect design.

 

But i want to make the two profiles of the loft perpendicular, but i cant chose in both "direction"...

 

 

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Thanks so mcuh. Now i have a more perfect design.

 

But i want to make the two profiles of the loft perpendicular, but i cant chose in both "direction"...

 

 

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