In a previous post, I described how you can use the ALIGN command (AL alias) to move, rotate, and even scale geometry in a 2D drawing. With a few additional picks, ALIGN is a powerful tool for performing similar move and rotate operations in 3D space.
To align an object in 3D space, you’ll need to provide three sets of points between the source and destination. The following image illustrates the process of aligning the 3D wedge with the 3D box by picking the specified points. After picking all six points in the order indicated by the first image, AutoCAD automatically moves the wedge to ensure point 1 is coincident with point 2. Then it rotates the wedge so that edge 1-3 is aligned with edge 2-4. Finally, it rotates the cube again to ensure edge 1-5 aligns with edge 2-6.
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