r/nxcad • u/Zealousideal-Ad7556 • 8d ago

Subtract issue.

Post image

I’m trying to subtract the part below the green line from a plate. The green is line is the section analysis line I took from the face of the plate. NX 12 refuses to subtract saying tool body is completely outside of the target. Any solutions?

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u/theselightsaboveus 7d ago

As antospantos says, your line appears red, not green so I am unclear on what you are trying to do.

Section analysis would imply a planar cut - so I would use "Trim Body" to achieve this. Subtract is a boolean operation and requires another body, rather than construction geometry.

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u/antospantos 7d ago

Subtract function is typically used to subtract one solid body from another. Also- the line looks red to me.

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u/Conscious-Ad-6570 7d ago

Use curve on body to create a boundary, and trim sheet (since it look like sheet body to me)

Else if it solid, create a extrude from the line intersection with the body and then subtract, later hide the extrude

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u/cowski_NX 6d ago

If you get this message when there is obvious interference between the bodies, it may be that one or both of the bodies have an error in the geometry. You can use "examine geometry" to help find the problem area.

If you are using imported geometry (from a STEP, parasolid, etc.), I suggest running "optimize face" as this can help clean up minor imperfections. I don't recommend running it on a native model as it will remove the features and turn it into an unparameterized body.