Using Taper on specific surfaces

@emilio Amazing! Thanks for sharing your method!
I see now that I am still thinking too much on how to do the SolidWorks way. Focusing on sketches (wire frame curves) and doing Booleans later seems to be a better way in Rhino.

@Tom_P Thanks for sharing your model and links! Great job, pretty interesting method. You copied the surfaces to a new layer to work on the fillets, right? And before, how did you create the surfaces on srf layer?

I am actually reading the Rhino Training Manual. I stopped after Lvl 2 - Ch 8 and started doing those parts I have from SolidWorks. Just found some explanation about taped in Ch 10. lol
And thanks for the fillet links too, I will read it. I am having problems with it, and the solution usually is not orthodox.

Btw, I managed to do the taped surfaces. I had to delete the faces, used Duplicate Edges to make curves from them, then Extrude Curve Taped, made a copy from it to use Split twice (plus some Extend Surfaces) and Join. Quite long workflow, never realized how the Draft tool in SW is so powerful.
Still need to fillet it, they all went wrong lol