B-spline_xyz? for surfacedesign

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Norus
Posts: 169
Joined: Tue Oct 13, 2015 9:33 am

B-spline_xyz? for surfacedesign

Post by Norus »

Hello together,

our implant was designed using Siemens NX, now we have to use FreeCad for another version of plate. the idea is to create the solid using surface WB

First step: creating an outline of the part using a B-spline in xy

Next step: add the correct z-value to the B-spline points to follow the top-surface. -> B-spline ->data -> points OK and then click gorden-profile

now you see the actuall line.

It works, slow, but it works and, I am sure, the gorden line button is not correct for this work, but I have no idea what to do to increase.

Any ideas are wellcome

thanks

norus

OS: Windows 10 (10.0)
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Version: 0.19.23074 (Git)
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Attachments
B-spline_xyz for surface.PNG
B-spline_xyz for surface.PNG (371.17 KiB) Viewed 1547 times
chrisb
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Re: B-spline_xyz? for surfacedesign

Post by chrisb »

Should I merge this with the Curves workbench topic? If not, then you should make clear that it is about this addon workbench by using an appropriate title for the topic.
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Norus
Posts: 169
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Re: B-spline_xyz? for surfacedesign

Post by Norus »

I understand that it is part of B-spline, how to get a third parameter for the coordinates.
But I am not familiar with the structure of Freecad, only pragmatic user.
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thomas-neemann
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Re: B-spline_xyz? for surfacedesign

Post by thomas-neemann »

Norus wrote: Sun Aug 01, 2021 5:58 pm
hello norus

is a 3d bspline helpful? example in the video:


https://www.youtube.com/watch?v=xwn3eMvsvBY

1.png
1.png (7.78 KiB) Viewed 1467 times
Greetings Thomas



edit


ergänzung

https://www.youtube.com/watch?v=aseHIOLt4YA

2.png
2.png (31.9 KiB) Viewed 1450 times


edit 2

2. ergänzung


https://www.youtube.com/watch?v=nv43Z0d9Jwo

3.png
3.png (53.29 KiB) Viewed 1443 times
Gruß Dipl.-Ing. (FH) Thomas Neemann

https://www.youtube.com/@thomasneemann5 ... ry=freecad
Norus
Posts: 169
Joined: Tue Oct 13, 2015 9:33 am

Re: B-spline_xyz? for surfacedesign

Post by Norus »

thats what I am looking for.

a mechanical engineer finds the solution using Arch, excellent !!!!!!

Have a great time, stay save.

Thanks a lot.

norus
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thomas-neemann
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Re: B-spline_xyz? for surfacedesign

Post by thomas-neemann »

Norus wrote: Mon Aug 02, 2021 1:08 pm ... finds the solution using Arch, .
arch contains draft and draft is a real 3d tool, it is often wrongly described as a 2d tool.

Greetings Thomas
Gruß Dipl.-Ing. (FH) Thomas Neemann

https://www.youtube.com/@thomasneemann5 ... ry=freecad
Norus
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Re: B-spline_xyz? for surfacedesign

Post by Norus »

My problem is to activate the third coordinate-value, there is always the result in xy or yz....

There is a hidden button to get your results.
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Re: B-spline_xyz? for surfacedesign

Post by thomas-neemann »

Norus wrote: Mon Aug 02, 2021 1:18 pm My problem is to activate the third coordinate-value, there is always the result in xy or yz....

There is a hidden button to get your results.
this snap option is important
1.png
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Gruß Dipl.-Ing. (FH) Thomas Neemann

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Norus
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Re: B-spline_xyz? for surfacedesign

Post by Norus »

There is a problem, but where?

In Combo I see line not bspline, the button ist activated
Attachments
B-spline-Linie.PNG
B-spline-Linie.PNG (25.71 KiB) Viewed 1387 times
B-spline-bspline.PNG
B-spline-bspline.PNG (139.02 KiB) Viewed 1387 times
Bspline_geht_nicht.PNG
Bspline_geht_nicht.PNG (179.89 KiB) Viewed 1387 times
Norus
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Joined: Tue Oct 13, 2015 9:33 am

Re: B-spline_xyz? for surfacedesign

Post by Norus »

It works, FreeCad reinstalled.

But in Combo-view I see line not Bspline.

Thank you Thomas, its a big help.
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