Abstract: A marking device (10) comprises a housing (12) having a handle (16). A frame (20) is pivotally mounted in the housing aout a first axis (22). A marking head (40) mounted on the frame for translational movement in the frame by a first motor (84) in a first direction (x) parallel said first axis and spaced therefrom. A second motor (100) is arranged to pivot the frame with respect to the housing about said first axis in a second, substantially orthogonal direction (y). The pin moves in a third orthogonal direction (z). The motors (84, 100) are disposed within the confines of the frame (20) and move on fixed screws (84, 104).

Abstract: A marking device (10) comprises a frame (1) (of frame plates (12,14)) to which are fixed first and second motors (16,18). A carriage frame (40) is pivoted in the frame about a screw axis (22). A marking head (30) is mounted on the carriage frame for movement in a direction parallel the screw axis. A drive screw (20) is rotationally mounted in the frame along the screw axis and is driven by the first motor (16). The carriage frame is journalled on said drive screw to permit said pivoting about the screw axis. The marking head is driven by rotation of the screw, the carriage frame being pivoted by the second motor. The carriage frame (20) comprises a bar (32) on which the marking head slides. The bar is disposed parallel the drive screw. The bar has at each end an arm (34,36) pivoted on bearings (35,37) on the drive screw. One arm (36) has an extension (66) fixed to a belt (58) disposed around two idler pulleys (62,64) and a motor pulley (60) driven by the second motor.