An apparatus including a computer processor, a robotic device, and a weight scale device, having a plurality of independent weight scales. The computer processor may be programmed to control the robotic device to cause a material located on the weight scale device to be evenly distributed over the plurality of independent weight scales so that each of the plurality of independent weight scales indicates the same weight within a tolerance. The robotic device may include a rake appendage having a plurality of tines, which may be controlled by the computer processor to move the material to cause the material to be evenly distributed over the plurality of independent weight scales. The robotic device may include a roller device having a roller which may be controlled by the computer processor to run over the material located on the weight scale device to thereby compress the material.