a reflected light or mechanical marker technology referring now to fig2 the bottom side 38 of the pneumatic plate 25 is illustrated more specifically a plurality of holes 40 extend from the surface of the bottom side to an inner chamber 60 shown in fig4 and 5 to provide the air flow from the motor 27 to the pneumatic plate 25 the holes 40 are arranged in an array complementing the locations 17 of the tray 15 when the pneumatic plate 25 is positioned over the tray 15 additionally the bottom side 38 of the pneumatic plate 25 in some embodiments also provides complementary positioning indents 42 the indents 42 dimensionally complement the positioning knobs 19 of the tray 15 consequently when positioning the plate 25 over the tray 15 by allowing the indents 42 to receive the knobs 19 the holes 40 align directly above respective locations 17 containing a part 12 if desired dividing walls 45 may be connected to the bottom surface 38 of the pneumatic plate 25 to surround the holes 40 and define a chamber between each respective hole 40 and part location 17 the walls 45 would be made of a pliable material such as rubber or material fibers fig3 illustrates a method 50 for implementing one embodiment of the pneumatic system 10 as illustrated in fig1 and 2 in accordance with the present invention initially the system 10 will 34 position the tray 15 having an array of part locations 17 34 as set forth in block 52 to a predetermined position on the conveyor belt assembly 35 or.