Spinning

Usage
Spinning is by default enabled. To enable or disable spinning go to the Edit→Preferences menu, change to the Viewer settings and click on Use spin rotation.

To make a 3D-object spin, rotate it with the mouse and release the mouse buttons before stopping the mouse motion. The object the continues with its rotation.

View Turntable
Another way to put in rotation an object is use Tools -> View turntable... command