Hi Nikita,
re:
> What is the problem there?
Well I guess the fundamental problem is that filleting is a very complex and difficult operation and it takes a very large amount of time and effort to make a filleting engine that can handle any kind of geometry.
You may need to import your models that you want to fillet into a different CAD program like OnShape or Alibre and do the fillets over there instead of in MoI.
That said, you could probably get these done in Moi if the quality of the geometry was better.
Fillets are already difficult to calculate and giving them messy geometry makes things even more complicated. In your case here the main problem is that there are creases in these spots that you would want to be smooth:
If you know you are going to want to fillet something it's best to take extra care during the earliest stages of drawing profile curves to make sure they are of good quality.
Areas that meet up smoothly are easier for filleting to process because fillet surfaces between pieces that are tangent smooth will naturally meet up end to end while fillets that try to cross over a sharp creased edge need to be extended and intersected with each other.
It's especially difficult to calculate intersections between shapes that meet at a shallow angle. There is more like a "zone of overlap" instead of a crisp intersection in those cases. So spots that are somewhat close to being tangent but are off by a little bit can be particularly difficult.
So the main thing in your case here was your original curve profiles used to extrude the main body did not have lines tangent to the arcs.
- Michael
|