3D Custom Rotation The precision of the rotation values that can be entered (degrees, minutes, and/or seconds) depends on the Units setting. To rotate at custom angles in 3D: 1. Select the 3D object or objects to rotate. 2. Select Modify > Rotate > Rotate 3D. The Rotate Object in 3D dialog box opens. Specify the rotation parameters. Parameter Description Rotation Angle Enter the angle of rotation Center of Rotation Specify the desired center of rotation Working Plane Center Rotates using the center of the working plane Object Center Rotates about the center of the selected object Next Mouse Click Rotates around the next mouse click in the drawing window Rotation Axis Select whether the rotation axis will be based on the Ground Plane or the Working Plane, and about which axis point 3. Click OK.