Hi Arian, it looks like you're making very good progress there! This is definitely a better type of approach.

That is not a bad way to create a fillet if the regular fillet tool is not working.

If you want some feedback on why that particular fillet you show in the screenshot did not work, please post the 3DM model file (or e-mail it to me at moi@moi3d.com if you want to keep it private) so I can take a more detailed look at your object and see if I can offer any further tips.

It's hard for me to give very good feedback based only on a screenshot, but my best guess is that it's related to these areas here having some little pieces of geometry:


MoI's filleter will not work properly if the fillet would need to totally consume away some existing edges or entire faces of the model and it looks like that will probably happen there unless you use a pretty small fillet radius.

- Michael