Due to the revolution of industrial productions, the better and rapid product development leads to the superiority in the marketing aspect so the product development and design are important. Then, before the industrial production, the accurate and rapid as well as alike the real product construction of prototypes is necessary. As a result, the construction and development of the prototype machine is the best way for the industrial to increase the ability of production and design. For the working principle of constructed rapid prototype machine, its the cutters working like the laser in LOM technology cut the contour of each paper layer .The cut papers were adhered with glue and press with heater. The remainder of cut papers was cut as a hatch line to readily remove after a job was finished. Every process was controlled by the computer program which read the input data XXX.STL from the CAD software. The main problem of the rapid prototype machine occurred is the machinery system. For example, the set of rolling paper and moving up and down in Z direction are the cause to slow the operation of the rapid prototype machine. The operational test of the rapid prototype machine was performed with two sizes of papers, 0.4 and 0.1 millimeter. It is found that the paper thickness of 0.4 millimeter cause the quick operation and reduce the number of paper layer comparative with the 0.1 millimeter thickness. The error of both cases is 1.18 % by size in Z direction, while the prototype shape, curvature and the size in the remainder directions correspond to the designed model.