A slip forming curbing machine includes a hopper and slip former selectively raised or lowered as a unit relative to a wheeled frame. A grader is movably connected to and supported by the frame, the grader having a grader portion selectively slidably movable to extend beyond the frame. Sensors attached to and extending from the frame are used to control movement of the machine and operation of several components, including mechanism for raising and lowering the hopper and slip former.