An earth working machine (10) encompasses a machine body (13) having a machine frame (12) and a drive configuration (46), rotationally drivable relative to the machine frame (12) around a drive axis (A), to which configuration a working apparatus (32) embodied for earth working is releasably connected in torque-transferring fashion, in an operating position operational for earth working, for rotation together around the drive axis (A), such that when the connection is released, the working apparatus (32) is removable from the operating position in an axial direction relative to the drive configuration (46) for deinstallation from the drive configuration (46) and, for installation on the drive configuration, is conveyable into the operating position in an axial direction relative to the drive configuration (46).

According to the present invention, there is provided on the drive configuration (46) an actuator (65) that encompasses an actuator member (63), movable relative to the drive configuration (46), which, when the working apparatus (32) is located, in preparation for installation thereof on the drive configuration (46), in a preparation position located axially remotely from the operating position, is conveyable directly, or indirectly with interposition of a coupling structure (94a), into installation force-transferring engagement with a counterpart coupling structure (74g) of the working apparatus (32), the working apparatus (32) being capable of being brought by the actuator (65), upon establishment of an installation force-transferring engagement, from the preparation position closer to the operating position.

An earth working machine (10) encompasses a machine body (13) having a machine frame (12) and a drive configuration (46), rotationally drivable relative to the machine frame (12) around a drive axis (A) that defines an axial direction, that extends along the drive rotation axis (A) from an introduction longitudinal end (46a) at which the drive configuration (46) is embodied for introduction of a drive torque to a functional longitudinal end (46b) located axially oppositely from the introduction longitudinal end (46a), and to which configuration a working apparatus (32) embodied for earth working is releasably connected in torque-transferring fashion, in an operating position, for rotation together around the drive axis (A), such that when the connection is released, the working apparatus (32) is removable from the operating position in an axial direction relative to the drive configuration (46) for deinstallation from the drive configuration (46) and, for installation on the drive configuration (46), is conveyable into the operating position in an axial direction relative to the drive configuration (46), an actuator (65) being provided which is embodied to move the working apparatus (32) out of the operating position when the connection is released.

According to the present invention, provision is made that an actuator housing (62) of the actuator (65) is provided on the drive configuration (46) for movement together therewith, at a position that is located closer to the functional longitudinal end (46b) than to the introduction longitudinal end (46a), an actuator member (63) of the actuator (65) being movable relative to the actuator housing (63).

Improvements in a high speed smooth tool path is presented where the high speed smooth tool path to be used for primarily finishing for finishing any type of walls (negative/positive drafted) for any given bounded region be it 3, 4, 5, . . . n sided shape. The tool path incorporates a combined strategy for finishing the walls while removing any excess material leftover from a previous larger diameter cutter. This tool-motion can be utilized for roughing the regions by approximating the walls by offsetting the regions inwards. The finished boundaries are offset inwards and then cut using these methods. This is optimized as opposed to moving the cutter at a consistent speed in the cutting path. This is performed to eliminate the wasted tool-motion to the maximum extent. This technique is implemented for roughing any closed or open bounded areas regardless of the walls being straight, drafted (negative/positive or both).