How do I Fillet a Brep with edges that change parametrically?

I am trying fillet this brep and I can’t find a solution to filter and select edges that keep on changing list order, dimension and properties.
The edges I want to get rid of are these vertical ones, it might help that their direction is {0,0,+/-1}:

The edges selection should be this:

I am trying to get a fillet like this around the whole Brep:

Here is the file: (21.0 KB)
Help would be greatly appreciated (19.7 KB)

1 Like

Thanks, I’d got half way with python but still had issues, that solves it.
Just got to find the issue with the radius now as I am losing one of my surfaces :sweat_smile:

I untrimmed your original surface than re-split with it against the surface edge. Looking more gnarly now hopefully! (30.1 KB)

1 Like

Thanks, that works but unfortunately like the other solution the fillet fails for most values, 0.3 works but most others seem to fail. I’m trying to get it working with a python script as maybe it is a tolerance issue :confused: