[SOLVED] Problems with deformed loft and Fillet
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- Posts: 189
- Joined: Fri Sep 25, 2015 6:19 pm
[SOLVED] Problems with deformed loft and Fillet
Hello!
I try to design a part with a loft replicated nine times to assemble them to fins. However, I have two problems:
(1) My loft looks somehow deformed in the middle
(2) I would like to round the edges marked green on the screenshot (for all lofts, not just for the one highlighted), but the fillet tool fails whatever I try to make it work.
Can you give me some hints on how to correct these issues?
Please find my example attached.
Thank you in advance!
OS: Debian GNU/Linux 11 (bullseye) (GNOME/gnome)
Word size of FreeCAD: 64-bit
Version: 0.20.24693 (Git) AppImage
Build type: Release
Branch: master
Hash: e01f0d25d5f3ef9ceb66aa087212121e9f2f2e8b
Python version: 3.9.2
Qt version: 5.12.9
Coin version: 4.0.0
OCC version: 7.5.1
Locale: German/Austria (de_AT)
I try to design a part with a loft replicated nine times to assemble them to fins. However, I have two problems:
(1) My loft looks somehow deformed in the middle
(2) I would like to round the edges marked green on the screenshot (for all lofts, not just for the one highlighted), but the fillet tool fails whatever I try to make it work.
Can you give me some hints on how to correct these issues?
Please find my example attached.
Thank you in advance!
OS: Debian GNU/Linux 11 (bullseye) (GNOME/gnome)
Word size of FreeCAD: 64-bit
Version: 0.20.24693 (Git) AppImage
Build type: Release
Branch: master
Hash: e01f0d25d5f3ef9ceb66aa087212121e9f2f2e8b
Python version: 3.9.2
Qt version: 5.12.9
Coin version: 4.0.0
OCC version: 7.5.1
Locale: German/Austria (de_AT)
- Attachments
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- Round Fins Minimal Example.FCStd
- (63.23 KiB) Downloaded 18 times
Last edited by Spindoctor on Sat Jul 24, 2021 11:46 am, edited 1 time in total.
Re: Problems with deformed loft and Fillet
That's only a visual thing. Set the Deviation in the View attributes of the body to 0.1 and it will look good.
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- Posts: 189
- Joined: Fri Sep 25, 2015 6:19 pm
Re: Problems with deformed loft and Fillet
Oh, I see!
So (1) is solved. Thank you @chrisb!
What about (2)? Is there a manual solution to add a fillet or can Part Design Fillet be tricked to perform a meaningful fillet?
So (1) is solved. Thank you @chrisb!
What about (2)? Is there a manual solution to add a fillet or can Part Design Fillet be tricked to perform a meaningful fillet?
Re: Problems with deformed loft and Fillet
fillets are a tricky business and you case is quit complicated - freecad crashes a lot here for meSpindoctor wrote: ↑Thu Jul 22, 2021 11:28 pm What about (2)? Is there a manual solution to add a fillet or can Part Design Fillet be tricked to perform a meaningful fillet?
it all comes down to edge flow and will a fillet fit.
to have good flows make edges fillets flow over tangent
your loft sits on ring edge of the revolve and that can spell errors already
I pre rounded the revovle body edges
your model is also very small by the way
- Attachments
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- Round Fins Minimal Example.FCStd
- (225.4 KiB) Downloaded 17 times
MacOS Big Sur / Win 10
Designer | Faculty
Wayne State University
Interior - Industrial Design
Designer | Faculty
Wayne State University
Interior - Industrial Design
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- Posts: 189
- Joined: Fri Sep 25, 2015 6:19 pm
Re: Problems with deformed loft and Fillet
Thank you @Cekuhnen!
With rounding the ring I was able to get a fillet with 0,2 mm radius - this should be enough.
Thank you for your help!
Out of interest: why do you think the model is small? I mean, it is just a minimal example with just the features in question, but the "real" model is also not much bigger than that...
With rounding the ring I was able to get a fillet with 0,2 mm radius - this should be enough.
Thank you for your help!
Out of interest: why do you think the model is small? I mean, it is just a minimal example with just the features in question, but the "real" model is also not much bigger than that...
Re: Problems with deformed loft and Fillet
i guess in cad scale is subjective - i wasn't sure if you were aware of the model scale and thus what small 0.x mm value you need for the fillet
glad this all worked out
glad this all worked out
MacOS Big Sur / Win 10
Designer | Faculty
Wayne State University
Interior - Industrial Design
Designer | Faculty
Wayne State University
Interior - Industrial Design
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- Posts: 189
- Joined: Fri Sep 25, 2015 6:19 pm
Re: Problems with deformed loft and Fillet
It's hopefully going to be a 3D printer's heat break.
Thanks for noticing!
Thanks for noticing!
Re: [SOLVED] Problems with deformed loft and Fillet
No worries
Glad this all worked out
I am actually not sure if at this tiny scale working with the 3D printer and will be visible
Print very fine layers
Glad this all worked out
I am actually not sure if at this tiny scale working with the 3D printer and will be visible
Print very fine layers
MacOS Big Sur / Win 10
Designer | Faculty
Wayne State University
Interior - Industrial Design
Designer | Faculty
Wayne State University
Interior - Industrial Design
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- Posts: 189
- Joined: Fri Sep 25, 2015 6:19 pm
Re: [SOLVED] Problems with deformed loft and Fillet
Oh, sorry, I think I didn't explain that clearly :
This shall be a heatbreak FOR the 3D printer.
The manifacturing method will actually also be additive, but I will not use a regular 3D printer but something more high tech
I'll see if I can share some pictures when it's ready.
This shall be a heatbreak FOR the 3D printer.
The manifacturing method will actually also be additive, but I will not use a regular 3D printer but something more high tech
I'll see if I can share some pictures when it's ready.