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From SofTutor for AutoCAD 3D - 3D Rotate Command
Topics covered in this video are:
Rotating A 3D Door Outward Along The Z Axis
3D Rotate Command XYZ Move Modify UCS
Purpose Of 3D Commands
Rotating A 3D Door Along The X Axis YZ Move UCS
Rotating A 3D Door Inward Along The Z Axis XY Move UCS