how to fill gap and fix weird geometries

how to fill gap and fix weird geometries

Anonymous
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Message 1 of 11

how to fill gap and fix weird geometries

Anonymous
Not applicable

I have been playing with fillet and chamfer to get rid off sharp edges, but I ended up with some small gaps and weird geometries.

 

11.png

 

How can I fix them?

 

I tried to create a patch to fill the gap, but nothing happens. I don't have any idea how to fix the odd geometries. What tool can I use to smooth the edges or make them a single part with a round geometry?

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Message 2 of 11

HughesTooling
Consultant
Consultant

Can you upload the part, it's not going to be easy to help without seeing the model. If you right click the top component in the browser and select Export you can save as an f3d then attach to this thread. Was the part modeled in Fusion or imported.

 

Thanks Mark

Mark Hughes
Owner, Hughes Tooling
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Message 3 of 11

Anonymous
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Hi Mark,

 

I am attaching the f3d file on this post. Thank you

 

EDIT: I needed to insert top and bottom of the enclosure together, otherwise the geomerty is not visible. 

P.S. Don't laugh the text on bottom 🙂

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Message 4 of 11

HughesTooling
Consultant
Consultant

The Export has not worked too well did you select the very to of the browser tree, the file name when you selected export.

Capture.PNG

 

Mark

Mark Hughes
Owner, Hughes Tooling
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Message 5 of 11

Anonymous
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I did the same way, and verified it by importing it into my fusion 360 before uploading it.

 

I re-exported and am attaching again. In case that one fails again, please try to download from https://www.dropbox.com/s/qem7b5bv2msnv2m/a.f3d?dl=0

 

Please let me know if it will work this time.

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Message 6 of 11

HughesTooling
Consultant
Consultant

The second export worked OK but I can't help. The time line in that component has to be the longest I've seen and the most untidy I can't unpick what you've done, perhaps someone else can help, sorry.

 

Mark

Mark Hughes
Owner, Hughes Tooling
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Message 7 of 11

Anonymous
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Thank you for taking a look at it.

 

I guess there is no tool to fill gaps automatically and smoother the uneven geometry, right?

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Message 8 of 11

HughesTooling
Consultant
Consultant

Not when you get this far, you need to try and keep the model clean and as simple as possible for the fillets to work also leave things like the fillets and engraving until the end of the design. Right at the start of the component you were making tiny mistakes that are like time bombs waiting to go off later in the design.

 

Take this pocket you used 3 extrusion where you could have used 1 and at the end you left a small surface on one corner, something like that small surface will stop fillets working or make a very untidy fillet.

Capture.PNG

 

Capture.PNG

 

Capture04.PNG

 

 

Another thing to remember is it's easy to go back and edit a feature in the timeline, going through your timeline you moved several faces back and forth and added an extrusion each time, it would have been easy to edit the original extrusion and keep the timeline short so you can keep the design simple.

 

Take this Edge you move it several times adding extrusion each time, it would have been easier in the long run to edit the original sketch.

Clipboard01.png

 

Mark

Mark Hughes
Owner, Hughes Tooling
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Message 9 of 11

Anonymous
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Hi Mark,

 

Thank you for showing the mistakes. I agree that I should have left the fillet/chamfer as a last step.

 

I am very impressed with Fusion 360 that took me a few days to design a parametric enclosure with no previous experience. However, inexperience causes the issues that I am having now. I experienced a few time that when I change something in the timeline, then some of my drawings were lost or the ones I cut appeared, that's why I did the same thing more than ones during the timeline. 

 

As a result, there is no simple way to fill the gaps and clean the odd shapres, and I need to fix it from the timeline, right?

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Message 10 of 11

HughesTooling
Consultant
Consultant
Accepted solution

Maybe use the copy of the design you've uploaded here and go back through the time line and delete a lot of what you'v done and clean up as many of the extensions as you can to try and get a clean model without the fillets and engraving.

 

When it comes to adding the fillets something I found out recently is you can add fillets of different radii at the same time using Edge sets. If you need to add an edge to a set hold the Ctrl key down and you can select more edges.

Clipboard01.png

One more tip, I noticed that although you've used components you have not activated them while you work on that component. When you create a component activate it every time you work on it. Here's a link to a tips thread on Components. 

 

Mark

Mark Hughes
Owner, Hughes Tooling
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Message 11 of 11

kb9ydn
Advisor
Advisor

Making clean and efficient parametric models is one of those things that takes years to master, and even then you are always learning new tricks.

 

I've painted myself into a corner a few times over the years and from my experience you have basically two options:

1) Go back to the first feature that has warnings or errors and fix it.  Then recompute the model and fix the next item in the timeline with errors.  Repeat until all errors are fixed.

2) Start over and do things differently to try and avoid the mistakes you made the first time.

 

 

Sometimes with option 1 you can get lucky, where fixing earlier issues also fixes issues later on.  In this case though, I think #2 will be faster and you'll end up with a better model in the end.  I know it sounds painful having to redo it, but I've always found it's much easier the second time around because I have a clearer idea of what I want to end result to be.  And to that end, many times I'll treat the first attempt as exploratory, to help me figure out what specifically I want, and what modelling techniques will work the best.  Then when I know what I really want I'll make the *real* model.

 

 

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