How to mirror a solid

[Trinebula]

I need to mirror duplicate a solid, and I only know how to mirror duplicate a tspline. All I want to do is take the object I have highlighted, and duplicate and invert it to the other side. Any suggestions on how to do this?

[keqingsong]

Let me know if this gif helps.

[Trinebula]

Perfect, thank you

[martin.zatecka · Accepted solution]

Hello,

I have a several tips how to create a plane for mirror.

regards

Martin