In conventional milling, the end mill engages the work piece at the bottom of the cut. The end mill teeth slide along until pressure builds up to break through the surface of the work. This sliding action under pressure tends to abrade the edge of the end mill. The cutting action lifts the work piece, fixture and table from its bearings.
Conventional plows include a blade and a frame for coupling the blade to the front of the vehicle. It operates at almost a 90-degree angle to the surface of the road. The snowplow scoop attached to the front of the plow blade at 45-degree angle to the pavement and rides slightly above the surface of the pavement. It makes it easier for the snow to flow smoothly from the pavement and across the plow. Conventional plows also invert the soil, covering the top 4-6 inches that has organic material.
Conventional spray gun is the common type of sprayer that uses compressed air at fairly high pressure. It atomizes finish by forming it into tiny droplets, mixing the droplets with air, and propelling the mist in a pattern toward the wood. It can tackle any type of finish, thick or thin. It operates from a standard air compressor. The conventional spray gun works by the following process: gel coat is pumped through the fluid nozzle, then after exiting the nozzle, the resin is caught and mixed in a turbulent air stream. The catalyst is sprayed into this air stream so that it mixes with the resin. One of the benefits of this gun is that it allows good control over the spray pattern.