CAD tip # 11761:

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Parametric constraints between 3D objects in AutoCAD.

AutoCAD does not officially support geometric 3D constraints, but parametric constraints can be used also for 3D objects.

Just create the constraint between 2D objects first and then add the new 3D object(s) to the same block (or group) as the original constrained object. An example of constrained 3D objects created by editing the original 2D blocks using EXTRUDE (and DELOBJ=0) in the sample drawing with bricks of a toy set - Merkur2.dwg:

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16.1.2018 20356×

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applies to: AutoCAD ·

See also:
Tip 14088:	3 methods of creating true rectangles in AutoCAD.
Tip 13788:	Green square - mathematical charade and parametric constraints in AutoCAD.
Tip 13185:	Constraining object movement to a specified curve (rail) in AutoCAD.
Tip 12755:	How to create a polyline with multi-colored segments?
Tip 11998:	Double object snap (osnap) - how to align a line between two lines? (geom.constraints)

Selected tip: Fusion 360 doesn't create a drawing, error Unknown command "0.0000,1.0000,0.0000"

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