Device and method for moving an object in motion in hexapod positioning head, has actuation device connected to supports

A device for moving an object, the device comprising:

• a base and a platform able to receive the object;
• six supports each having an upper end connected to the platform and a lower end connected to the base, where the upper end and lower end of each support in combination have at least five degrees of freedom;
• and
• an actuation device connected to at least three of the supports, where the actuation device is suited for giving predefined periodic movements to said at least three of the six supports, these three supports being called controlled supports, thus giving a periodic movement to the platform relative to the base with at least three degrees of freedom,
• wherein said periodic movement is composed of at least three elementary periodic movements each defining a degree of freedom of the movement of the platform, where each of said three periodic elements movements has a period, called elementary period, different from each other, where the elementary periods are submultiples of the period of the periodic movement of the platform, and the movements of the platform along each other periodic elementary movements are algebraically independent from each other.