Intersecting fillet surfaces preventing the creation of a closed solid

Rhino Rhino for Windows
1

Hey there! I’m working on some dragon wings and I can’t figure out how to fillet between the different prongs without creating a mess that I then can’t figure out how to work with.

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Here is my starting point, and below is the fillets created between each prong, with different colours for different intersections.
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As you can see, the fillets dont create a perfect surface, and these underneath offcuts are preventing me from turning it all into a solid with a flat base (the end goal). I tried using the trim tool but it didn’t work and I’m feeling extremely lost. Is there a better way to fillet it? Or a way to trim this excess to form a single coherent surface?
I’ve attached versions of the file both with and without my attempted fillets. Any guidance on this would be much appreciated, as I am still very new to all this.
dragon wing no fillets.3dm (909.2 KB)
dragon wing with fillets.3dm (1.1 MB)

2

check out this video

3

This is interesting, however I remember another function that was much easier. I completely forgot you can also just fillet solids! (I was trying to fillet them as surfaces and then turn it into a solid). Thank you for your suggestion anyway, will probably be useful in the future.