Is there a way I can make these curves smoother? I tried using the method described here: What is the best way to smooth these curves? but it doesn’t pick ervery sharp corner. 
smoothen curve.gh (18.5 KB)
I noticed later that the resulting curves from Fillet didn’t loft well due to the straight lines becoming “Invalid Curves”…? So I went to a lot of trouble to replace the invalid curves with the original straight lines and guess what? They still didn’t loft well at all until I inserted a ReB (Rebuild Curve) component.
And then I realized all that Fillet stuff wasn’t needed, that ReB (Rebuild Curve) alone does a fine job all by itself.
smoothen curve_2020May18a.gh (26.7 KB)
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Was also trying to replace these invalid curves. The rebuild curve component works perfectly thanks alot!