Spiting along a defined plane

Hey hoping someone can save me tearing the rest of my hair out. Im trying to split this shape into panels that i can cut out of wood on a CNC but i cant figure it out. i attached a pic with some line to illustrate how im trying to split the object. i basically want to end up with 3 panels/sides that have the mitre angles so it can go back together

cheers :smiley: !

Shelled.3dm (62.1 KB)

Hello -Explode the object and Loft between pairs of edges (inside to outside) to make the edges and Join.



Thank you my friend !