Slowly drag the tip of the plasma cutter along the surface of the sheet metal. Slow down your dragging speed if you notice sparks coming back toward you while you cut; speed up your dragging speed if the plasma arc repeatedly shuts off.
Instructions
1. Read the operating manual for the model of Miller plasma cutter you intend to use to become familiar with the plasma cutter's controls.
2. Plug in the plasma cutter and set the amperage gauge as specified by the chart affixed to the inside of the Miller plasma cutter for the thickness of the metal you are cutting.
3. Remove the cup from the plasma torch and inspect the plasma tip for signs of wear. Replace the cutting tip if you notice large amounts of gouging in the copper tip, and reassemble the torch head.
4. Turn on the Miller plasma cutter and secure the scrap piece of sheet metal to a non-combustible firm surface with the self-locking pliers.
5. Put on your leather gloves and tinted safety glasses, and place the copper tip of the plasma torch the distance required by the Miller plasma cutter's operating manual.
6. Depress the tip of the plasma torch to start the cut. The torch will have a delay, so do not lift the plasma torch away from the surface of the metal.
7.Miller plasma cutters employ a combination of electricity and air energy to devise a stream of plasma that can shorten terminated metal. There are two contradistinctive categories of Miller plasma cutters: those with built-in air compressors and those without. A plasma cutter with a built-in air compressor has the added convenience of portability, but does not have the cutting capacity of the larger external air compressor models. Both types of plasma cutters use similar controls for amperage and airflow.
