Fiber Laser Machinery Quantum Efficiency
The exception is you are cutting medium to thick metal plates. At this point, laser starts becoming less efficient. Laser cuts medium to thick plates slower. Plasma interestingly can be much faster than laser when cutting medium to thick plates 25mm or 1inch +. The thicker the metal, the better plasma can do vs laser.
The support column, or Z-axis, holds the laser arm. The height adjustment knob allows you to adjust the laser focal point by moving Z-axis.