Split Part into multiple sections

I have an part that is a 3D image of a RC airplane and I want to cut this part into 4mm cross sections so I can print the cross sections out and then cut them out of foam to eventually create a 3D foam model of the plane. Kind of like making potato chips out of a whole potato. Is there a simple way to to take a part and make a cut ever Xmm?

Thanks,

Dylan

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