Abstract: An apparatus for replicating three-dimensional articles which comprises a frame means for supporting, in parallelly disposed relationship, the article to be replicated and a blank workpiece. A parallelogram working frame is supported on the base frame means, with the parallelogram working frame being arranged for both longitudinal and transverse motion. The parallelogram working frame supports and carries a motor driven cutter assembly, and the cutter assembly includes a cutter head which is rotatably driven along a certain working axis. A laterally spaced stylus is provided for making contact with the surface of the article to be replicated. The parallelogram working frame carries a counterweight at the end opposed from the cutter assembly so as to accomplish ease of positioning, adjusting, and maintaining the cutter assembly in operative disposition.