Issue with FilletEdge



I made this model. After BooleanUnion it looks like this.

When I try to do FilletEdge, as more or less expected, because of these areas

the result looks like this. The resulting model has 12 holes in it.

I have had similar issues in the past with this small model.

In that case, after performing MergeAllFaces that took care of it.

I have tried MergeAllFaces on the new model, but that does not seem to work. What do I need to do to make FilletEdge work with my current model?


Maybe this can help.
Extrude the curves and then cut the surfaces.
fillet.3dm (4.2 MB)


(David Cockey) #3

MergeAllFaces only works with planar surfaces.


Thank you for spending time on this to help me.

Unfortunately this does not help since the model you created is not my model. I have no issue making the model you created and add fillets.


Thank you. I was kind of expecting to hear that. Bummer. That would have made life a lot easier.


I found a solution. It’s kind of a work around but I think it works fine. Here it is. Maybe others with similar issues can benefit.

I created a cylinder with a diameter .001 mm larger than the inside diameter of the ring.

Then I did a Boolean difference.

The result can now easily be filleted all around.

(Pascal Golay) #7

Hi Zews - if you extract (ExtractSrf) all the inner faces and join them then DupBorder, you can then use the curves to trim a complete cylinder surface and replace the ‘composite’ with that.