UNION command Autocad,Soild Editing Autocad,Combine Solids,3D solids,Extrude command, Region Autocad
How to combine two or more 3D solids, surfaces and regions in AutoCAD?
Solution:
This feature is controlled by UNION command.
It combines the multiple solids, surfaces or regions into one.
It creates a composite solid, surface or region after addition.
On surface the union is not recommended because it lost the surface associativity.