Here I have a simple object, then I do fillet operation, the result isn't correct.

I just found a mistake I made, it's because the top face isn't clean which have 5 edges, now the question is how can I fill the top curved face?

One method considering all edges as bad (someones are not merged - in 2 pieces)

Reconstruct all faces! (with the help of the 8 points and 2 top curves - Sweep = profils)


Does this a Key of your computer ? ;)

Thank you so much, I didn't follow your steps, but it works, I attached a gif image, anything I'm doing wroing, anyway thank you so much!

Cool result! I made Sweep on faces that i did't know if they were planar!
So sure to fill them ! :)

I see! and yes I'm trying to make a keyboard, thanks for helping!