Champher/Draft Help

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dbush3721
Posts: 6
Joined: Thu May 21, 2020 10:55 pm

Champher/Draft Help

Post by dbush3721 » Sat Nov 21, 2020 7:21 am

For some reason I'm unable to create a chamfer of this mountain man profile. I select the top face and activate the tool... After some time I get the Chamfer parameters and the render is blank. I suppose something is preventing it from succeeding but I can't figure it out.

Actually what I'd like to do is have the sides drafted at 5 degrees because I'm looking to make a stamp.

Thanks,
Dan
Attachments
mountain-man.FCStd
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mountaon-man-cant-chamfer.jpg
mountaon-man-cant-chamfer.jpg (237.4 KiB) Viewed 148 times
chrisb
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Re: Champher/Draft Help

Post by chrisb » Sat Nov 21, 2020 7:47 am

I'm short of time, but you may check this yourself: Start with a very tiny radius, and increase it until it fails.

- Fillets tend to fail on nearly but not quite tangent edges
- Fillets tend to fail on nearly 0° edges
- Fillets almost always fail if the consume more then the adjacent face.
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papyblaise
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Re: Champher/Draft Help

Post by papyblaise » Sat Nov 21, 2020 11:49 am

Fc does not correctly handle chamfers and fillets along B-spline
I make a base for it and on this one, the fillets works
but with Partdesign, how long is it, we have time to make a grid of 1000 crossword boxes between each page :?: :lol:
Attachments
marcheur.PNG
marcheur.PNG (14.89 KiB) Viewed 108 times
marcheur.FCStd
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dbush3721
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Re: Champher/Draft Help

Post by dbush3721 » Mon Nov 23, 2020 1:39 pm

Thanks papyblaise and chrisb. Is it in the pipeline to enhance FreeCADs ability to handle chamfers?

Do you think an alternate approach like using two profiles, one slightly larger than the other some distance apart and then lofting between them work? I did make one attempt in that direction but have been successful so far.

Thanks,
Dan
drmacro
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Re: Champher/Draft Help

Post by drmacro » Mon Nov 23, 2020 1:43 pm

dbush3721 wrote:
Mon Nov 23, 2020 1:39 pm
... Is it in the pipeline to enhance FreeCADs ability to handle chamfers?

I'm chastising in any way, I'm smiling. :)

You have obviously not been hanging out in the forum long if you need ask that question. :lol:
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