Help with not being able to cap

Hi there!
I’ve desperatly been trying to cap this piece… I need to have this as a solid but I haven’t been able to do it in any way.
I think the problem may be in the green curve that serves as base… but I’ve tried everything! It is at an angle, But I projected it into a plan to make sure it was planar, I’ve checked for bad objects and the curve is closed. But it extrudes an open polysurface that seems to not be planar also…
I’ve also tried PlanarSrf but it also doesn’t work.
Any tips? I need to fix this asap

Mara, could you make a planer surface and use your curves to cut that surface. The use thicken surface the amount you want. Just one way, of course. —-Mark

it can also be that the curve itself is overlapping that would prevent the solid option from functioning. try CurveBoolean then extrude the resulting curve. if that does not help you have to post your actual file otherwise its just guessings

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Perhaps DupEdge [s] and then join them. Hopefully, now a closed curve. Then a surface from the curve. If on R8 use the PushPull command to get your closed solid. [I am finding it a very nice addition to R8.] If all of the approaches suggested so far fail, then perhaps post a file with this geometry if you can.

Thanks everyone for the help! What ended up working was doing SetPt to Z Axis, and selecting all of the curves… Then I did CurveBoolean to make sure it was fully correct :slight_smile: