Use original, manufacturer products. Although cheaper, copies are often poor quality and not manufactured to the same tolerances as the originals. As the saying goes, buy cheap buy twice! Consumable usage can also affect manufacturer warranties, if you aren’t using original parts your warranty will be void.
Torch height control is too high or too low.
Arc voltage is not adjusted if needed.
Gas flow or pressure settings on the CNC are incorrect.
Cut speed needs checking – either too fast or too slow.
Incorrect process selection for the material and thickness being cut.
O-Ring lubrication needs checking (either over or under lubricated).
Incorrect cleaning tools have been used.
Wrong consumables have been selected for the job (material, thickness etc.).
