Simply place the vacuum plenum on your machine's bed. Clamp the plenum to the table using the provided slotted aluminum clamps. Run the provided gasket material along the edge of the plenum to prevent vacuum escaping.
Poke some holes in the provided sacrificial medium to allow vacuum to pass. Place the work piece on top of sacrificial medium or directly onto the plenum. If you intend to cut through the material, you must use the sacrificial medium. Connect vacuum ports on the side of the plenum using the provided fittings and hoses. Finally, connect the provided Venturi vacuum generator to your compressor and open the valve on the vacuum generator.
It's best not to puncture completely through the material when cutting so as not to break the vacuum seal. You can, however, cut all the way though if you are strategic about where you put holes in your sacrificial medium (included).
Porous materials allow vacuum loss and may not be held as firmly as a non-porous material. Very small parts may not have enough surface area to be held by vacuum.