3-Face Fillets--thicc and chonky

[HerrTick]

3-face fillets are cool. They can yield a great-looking smooth edge with minimal effort when they work right.

However, I find that often the resulting surface of a 3-face fillet is very "heavy", with dense pole structure and slow regen times. Also, these surfaces can be prone to corruption further downstream. I've had to abandon and restructure 3-face fillets more than once.

I've observed similar behavior in SW, Creo, and NX.

What say you, good people of CADForum?

[zxys001]

.. I've rarely ever used them and similarly their convergent/divergent behavior and look does not play well downstream and beyond (STEP files)

[matt]

I've used them a few times, but not much. Some other technique always seems to fit the need better.

[Lucas]

Rarely use it, most times I use the standard fillet or I would focus on the sketch/surface

[HerrTick]

Once in a while I will use a temporary 3-face fillet to establish ideal silhouette edge to make a pair of tangent fillets.