Big trouble with little fillet...

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 From:  krass
7437.1 
Friends, please forgive me that distract you with their stupid questions, but sometimes he can not solve the problem, alas.

So. That model - did - tried - very accuracy, but, nevertheless, there is a problem.
See picture:

1. I can not build a fillet of 0.3 on the edges marked in orange.
2. In the right part of the model, a detailed study, found 2 artifact (pointed edges, these blue and green) - how to fix it - do not know ..

Chances are they do not allow to build a proper fillet on the right.
But what prevents to make fillet on the left side - I have not found.
It is a pity that the program is not some "tips trouble spots" when the team can not be performed.

And - most importantly - how to fix these problems, not to make the model again?

Need yours advice & help, please!

EDITED: 7 Jun 2015 by KRASS

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 From:  Mauro (M-DYNAMICS)
7437.2 
Hi Krass.
this seam stop filleting



so delete that face



extrude yellow border



trim



select all surfaces and join



fillet test to 1mm



same problem here



delete faces,add a line,yellow as sweep sections,blue as sweep rails



new surface without seam,select yellow edge and extrude





borders to select for trim blue surface







...join all and get a solid.Now i see some bad modeling areas



You can't fillet in these conditions,without a loop edge



Maybe others have a solution...sorry for all these pictures,hope you understand my workflow..file attached

M

EDITED: 7 Jun 2015 by M-DYNAMICS


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 From:  krass
7437.3 In reply to 7437.2 
Hi, Mauro!

It is an object lesson, thank you! I will immediately learn to do as you are!
Great workflow, everything is clear and vividly!
You have very much helped out greatly!

EDITED: 7 Jun 2015 by KRASS

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 From:  OSTexo
7437.4 
Hello krass,

I think you can get everything filleted the way you want it, but I've found in cases where I might have filleting problems that I build surfaces past where I think I'll need them and then start changing the order where I fillet. Before I do that I try to think how I would carve the object out of a solid block of material, that helps the process a bit as well. If you have the raw model minus any fillets or just lines that works better sometimes than posting models that are half finished with detail.
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 From:  krass
7437.5 
Hello everyone!
Thank you for your invaluable help and advice!
As a result, I redid the model again using your tips and recommendations.
In some places had deliberately change some nonessential radii to avoid creating bottlenecks to rounding.
In any case - thanks!

ps. that's what happened as a result of work.
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 From:  Mauro (M-DYNAMICS)
7437.6 
Krass..let me show you a simple example about fillet in a situation with-without seam

A simple polyline 20x20mm:CENTER= corner filleted 10mm,RIGHT= corner filleted 10mm then REBUILDED



extrude now both:rebuilded curve on the left don't have seams,right curve show origin of the seams



now put two cylinders in a particular position





select both edge loops



Fillet both



Now you know,before fillet always check the area,if you detect seams crossing each other and so,rebuild surfaces avoiding that.

For further advanced situations check this:

https://vimeo.com/63076359

M

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 From:  ed (EDDYF)
7437.7 
Mauro - Interesting demo.

I would have thought the simpler polyline would give the least trouble.

Guess I have a lot to learn, especially regarding seams.

It would be helpful to know why seams get created in the first example, and not on the rebuilt curve. And why do seams interfere with fillet?

Ed Ferguson
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 From:  Michael Gibson
7437.8 In reply to 7437.7 
Hi Ed,

re:
> And why do seams interfere with fillet?

The filleter basically follows edges when it constructs fillet surfaces. The more complex the edge structure, the larger number of fillet segments have to be created and one of the things that tends to be difficult is dealing with the juncture areas where fillet pieces meet each other.

- Michael
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