Factors to Consider Before Buying a CNC Router

A CNC (Computer Numerical Control) router is a big investment. Finding the right solution is important. It is useful for multiple tasks such as milling, drilling, routing, cutting, engraving, etc. Wrong choices cost unnecessary time, money, and materials, not to mention frustration. The right CNC machine router, on the other hand, will accelerate the goals and ensure the company produces a product to be proud of. So, what should you look for in an ideal CNC router? Here are the factors to consider before buying one.

1. Features

One of the most prominent factors is the features the business needs in the CNC router. Features include, but are not limited to:

  • Spindle
  • Vacuum system
  • Automatic tool change
  • Knife system
  • Visual registration system
  • Fog unit
  • Alignment pins, etc.

2. Applications and Capabilities

When one starts searching for a CNC machine, one quickly realizes that not all machines suit the job. A good CNC machine is perfectly tuned to meet its unique applications and capabilities.

Look at the specific task from all angles and consider accuracy, speed, security, and maintenance issues. Accuracy within a few thousandths of an inch is critical, especially for composites such as aluminum honeycomb. A constant high speed is also a must. These machines should suit several applications, from wood to aerospace materials.

3. Electrical requirements

Before buying a new CNC machine router, spend some time understanding the electrical functions of the business. Some machines work only at certain voltages. Check the following points.

  • Does the company have three-phase or single-phase power?
  • Required Volts/Amps
  • Required connections, etc. Downtime and maintenance

Choose a machine only after analyzing the above requirements carefully. The electrical characteristics of the workplace must align with the operating components of the router.

4. Software requirements

One should consider the software requirements of the CNC router before buying one. The software is the necessary CAD software required to operate the machine. Consider application-specific software packages when choosing a new machine. For example, if carpentry software is the main job of the company.

5. Drive system/Parts

Considering the drive system and components is fruitful because they allow CNC machines to work with motor systems and software. The drive system moves the router’s axis and consists of several components such as motors, ball screws, and rack and pinions. All these components work together to provide controlled linear motion, causing the machine to move along an axis. CAMaster uses both helical rack and pinion and ball screw drive systems.

6. Motor system

The two major motor systems used in most CNC milling machines are:

  • Stepper motor system

This type of motor system is often called an “open-loop controlled motor.” These motors rotate, or “step,” from one position to another. Stepper motors are inexpensive and ideal for low to medium-speed applications.

  • Servo motor system

This type of motor system is also known as a closed-loop system because it incorporates position feedback to control the machine shaft’s linear or rotational position and speed. Servo motors are ideal for high-speed, high-torque applications.


Businesses must consider their budget when buying a CNC machine router. Prices will vary for small businesses and large companies. Other considerations are features, electrical requirements, motor systems, software, and machine capabilities.