Function:
Generally speaking, the CNC machine is divided into three categories: engraving, cutting and punching. A wood CNC machine can have all three functions or one, so you can choose the right one according to the work you want to do.
dimensions of the device:
Another thing to consider when choosing a device is the dimensions of the device, i.e. the area of the table and the Z axis, which largely depends on the dimensions of the project you want to do.
Engine type:
CNC machines have two types of motors: stepper and servo motors. Servo motor has higher accuracy and torque, but its cost is also higher. Nowadays, using a stepper motor for a CNC machine is no longer common and has been replaced by a servo motor.
Controller:
The controller is the user interface and the CNC machine, which after receiving the J-code data, transmits it as a series of pulses to the motors connected to the arms.
Advance power:
This value is expressed in meters per minute, and the higher it is, the faster the machine will be.
Accuracy: The accuracy of the CNC machine is measured in microns.
Spindle:
Various tools are installed on the spindle and its power is in kilowatts and its speed can also be controlled. Some types of devices have features such as water cooling or air cooling.
Number of axes:
The movement range of the machine depends on the number of axes and the minimum number of axes is 3. The rotary CNC machine has 4 axes and some types of industrial CNC have 12 axes.