Negative volume

I have created a brep by using railrevolve. It has a negative volume.
Does it mean that the surface vectors are in a wrong ditection? How can I fix this? (8.0 KB) negative

Try to relocate your geometry near the origin point and calculate the volume again.

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Does location of the geometry matters for the calculation of volume ?

Negative volume usually means the surface normals point into the volume.

Usually only if the object is a very large distance fromt the world origin. Your object does not appear to be that far away.


Depending on the direction of the curves, the volume might be negative. (12.0 KB)