Fillet 2 curves : Directly extract only the Arc

[attheeast18]

Thank you so much, @HS_Kim . Do you want to take a crack at my other problem?

Biarc Problem: How to Control Biarc Radius?

I have no idea how to tackle that the good way but I have a bad idea I would consider this new “fillet” curve to be created by point interpolation: the X and Y coordinates of these points are controlled from top view (projection of the original curves on XY → fillet → divide fillet into frames → just take their XY coordinate, save the frames for later) and for their Z coordinate? maybe we could steal the Z coordinate by intersecting the frames with the “average blend” between …

It’s similar but it’s the main reason why I’m trying to extract fillet arcs. I wanted to control somehow arcs of the Biarc component from 2 non planar curves such that it matches the radius of a planar version of those curves. It’s really hard. So far I can only control the curvature of the biarc by tinkering with the lengths of the curve.