Abstract: Apparatus and methods for forming a generally spherical object from a workpiece are disclosed. In one embodiment, an apparatus includes a frame having a laterally-projecting elongated member, and a support member slideably engaged with the elongated member. A motor is coupled to the support member and pivotably suspended below the elongated member. A surface treating member is attached to the shaft of the motor and is adapted to engage the workpiece. In an alternate embodiment, an apparatus includes two laterally-projecting elongated members and a pair of surface treating modules that engage the workpiece from opposite sides. In yet another embodiment, an apparatus includes three laterally-projecting elongated members and three surface treating modules that engage the workpiece from approximately equidistant directions.