In the engraving industry, the commonly used CNC router are mainly 3 axis machine tools. The 3 axis CNC engraving machine can manufacture many complex and practical shapes to meet the basic processing needs. This type of normal CNC machine is particularly widely used in the woodworking industry. However, sometimes the designed feature physically cannot be manufactured by a 3-axis machine, or the feature might be more economically viable to machine with a 4 axis CNC machine.

 

The 4-axis CNC router has all the same axes of a 3-axis CNC machine plus the additional A-axis that rotates the spindle around the X-axis up to 180 degrees during the cutting process. This rotational axis allows cuts to be executed on multiple sides of the workpiece without resetting, while a 3-axis router can only perform cuts to one side of the same piece at a time. 4-axis CNC routers are the preferred method for advanced, intricate cuts and carvings like those often seen in furniture, musical instruments, cabinetry, and more.

 

Acctek 4 axis CNC router is specially for large 3d sculpture. The spindle can be rotated 180 degrees, which can carry out special-shaped engraving, and the price is cheap. The work efficiency and the types of processing shapes that can be achieved are higher than the three-axis cnc router.