Cutting machine

A cutting machine, comprising:

• a frame (10) having a longitudinal axis, a mast (13) pivotally mounted on the frame for movement between an upright working position and a down-swung non-working position, a carriage (22) slidably mounted on the mast, and a cutting head (27) mounted on the carriage, the cutting head being movable relative to the carriage in a direction which is lateral to the direction of movement of the carriage along the mast, wherein the frame is supported on a pair of endless drive tracks (11) which are parallel to the longitudinal axis of the frame, wherein the frame is provided with a pivot bearing (14, 15) adjacent to each end thereof, each pivot bearing having a pivotal axis which extends transversely with respect to the longitudinal axis of the frame, and wherein the mast is provided with complementary pivot connections (16, 17) adjacent to the two ends thereof, each pivot connection being engageable with a respective pivot bearing to form a respective detachable pivot joint, the pivot connections being spaced apart by the same distance as the pivot bearings, whereby the mast can be positioned in upright working positions at either end of the frame, in each of which working positions the mast is supported by the pivot joint at that end of the frame, and whereby the mast can be positioned in a substantially horizontal non-working position, in which the mast is supported by both pivot joints.