FilletProblem_2020Feb22a.gh (19.6 KB)
You can select specific “corners” (Disc, Discontinuities) with the yellow text panel or just do them all, as shown.
Internalized brep (below):
FilletProblem_2020Feb22aa.gh (414.2 KB)
P.S. The radius of the Pipe can be reduced considerably but its effectiveness as a “cutter” for the brep depends on the radius of the fillet. This wouldn’t be necessary if the brep was a single surface as the white curve could then be pulled to it…