Home AutoCAD tips How to Unite 3D Objects in AutoCAD

How to Unite 3D Objects in AutoCAD

by Tutorial45

Here is one of the three most used commands while assembling in AutoCAD 3D. The most part of creating a 3D object in AutoCAD is based on interlocking 2d parts seen in 3D.

AutoCAD gives you the ability to create trivial 3D objects with more or less a click, and you will be constructing the less trivial objects by combining the trivial objects using one of these commands: UNION, SUBTRACT and INTERSECT.

The UNION command

This command helps to unite 2 or more objects (2D or 3D) and make them one object.

If we consider the circle and the rectangle below

circle and rectangle autocad

If we consider that these objects overlap, the red image will be the result of their combination.

join in autocad

The resulting object (in red) now is a single object.

This command works only with solids, regions and surfaces. The following is an object that is built using the combination of a pyramid and a box.

joining 2 3d object autocad

To make the series complete, we are coming soon with the INTERSECT and SUBTRACT command.

AutoCAD 3D how-to tutorials

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