Full Version: Fit Filleting Fails

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Hi,
I'm having trouble with a new filleting.
Goal: The transition from the channels to the lens should be smooth/slightly rounded. Why am I unable to achieve this?

Attachments:
Linie orbit tresor moi forum.3dm

Image Attachments:
Screenshot 2026-01-26 100812.png 

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Hi mala, the initial problem is your model is made up of individual surfaces, you need to get it joined together so edges are shared instead of everything being separated.

- Michael

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Hi Mala, it looks like the separate surfaces problem is caused because your dome shape was an open surface instead of a closed solid when you did the boolean on it.

You should make the dome into a closed solid before doing the boolean. You can do that by selecting it and running the "Construct > Planar" command which will close off the bottom with a planar surface.

Additionally the cutting objects have a little gap in the middle area, they are also not solids. I closed those up by creating some lofts and joining those in.

- Michael

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Hi Mala, in the attached model I've fixed those problems.

So you should be able to open up the attached version, select these 22 edges:



Note don't forget this little one here:



Then you can apply a fillet:



It is helpful to refer to the "object type indicator" here to know if your
selected object is a finished solid or an open surface:



- Michael

Attachments:
Linie orbit tresor moi forum2.3dm

Image Attachments:
mala_fillet1.jpg  mala_fillet2.jpg  mala_fillet3.jpg  mala_fillet4.jpg 

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Hi Michael, thanks for eliminating the design flaws! I learned from them, replicated them in the design, and also added it to my personal MOI wiki.
Best Mala...

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