Tips for the Use of a Milling CNC Machine

Hugo Albero Rojas
Jul 20, 2022
Hugo Albero Rojas
Jul 20, 2022

Tips for the Use of a Milling CNC Machine

Hugo Albero Rojas
Jul 20, 2022

The milling CNC machine is a computer-controlled machine that can precisely produce molds from various materials. These include metal, plastic and composite materials. To perform the desired machining, the CNC machinist enters the desired CNC code into the controller. This then controls the movement of the cutting tool to perform the desired movement and machining.

The CNC milling machine is a versatile machine that can be used for a variety of applications, including prototyping, manufacturing parts, and even sculpting. With that being said, the industries in which CNC routers are used can vary greatly. From the automotive industry to jewelry making and metalworking, the CNC router is used in many fields.

In this article we will give you tips and tricks for using a milling CNC machine. This should make it easier for you to work with the CNC machine and get good results quickly. In addition, the risk of errors will be reduced and you can use the milling machine optimally. Likewise, this article can influence your choice of machine, if you are still unsure which CNC machine is right for you.


Correct positioning of the milling CNC machine

Before you can work with the CNC machine, you must of course set it up correctly. To do this, you should first find a stable surface. The milling machine is a relatively heavy piece of equipment and therefore requires a firm base. Make sure that the surface is level and does not have any unevenness. Otherwise, problems may arise during machining.

The quality of the installation also determines the accuracy of your CNC milling machine. Therefore, make sure that it is as stable as possible. For many CNC machines, an additional machine foundation is recommended to further increase the accuracy. However, the high costs for removing the foundation must be taken into account here.

The CNC mill should also be placed near an appropriate electrical connection so that you can connect it easily. Furthermore, pay attention to the required media connections such as coolant or lubricants.

Finally, you should also pay attention to the environmental conditions, as CNC milling machines should not usually be operated under extreme conditions. Therefore, do not place them in the immediate vicinity of heat sources such as radiators or air conditioners. Doing so could compromise machining quality and, in the worst cases, lead to component failure. The electronic components of the CNC milling machine and thus the entire machine control system are particularly at risk here.

Ideally, you now have a CNC mill that is stable and connected to all the necessary media. Now you can set it up and start working.

Set up milling CNC machine

The milling CNC machine is now properly set up and connected. However, before you can work with the milling CNC machine, you still have to set it up. There are several ways to do this, which we will explain here.

The machine can be set up manually or automatically. Manual setup is usually easier and faster, but is no longer up-to-date. In this case, the CNC machine is brought to a specific position and the working area is delimited. This can be done, for example, with a workpiece stand or a template.

Automatic setup is the more modern and recommended method. Here, the milling CNC machine is programmed with the help of a computer. Special software is usually used for this. The CNC is then connected to the computer and the desired settings are made. The CNC machine is then moved to the desired work area and positioning is automatic.

This is intended to be a rough introduction to the milling CNC machine and its setup. After you have set up the CNC mill, you can start working.

Operate milling CNC machine

Now you have set up the milling CNC machine correctly. Before you can work with the CNC milling machine, however, you should familiarize yourself with its operation. The operation varies from CNC milling machine to CNC milling machine. It is therefore best to read the operating instructions for your CNC milling machine to find out exactly how to operate it.

Some CNC machines have a control panel with various buttons and knobs. The modern CNC machines already have a touch screen, which is used to operate the machine. The meaning of the respective control elements can be found in the respective manual.

In addition, you should also be familiar with the machine software programs. The milling CNC machine is usually controlled and programmed by a computer. Therefore, inform yourself about the CNC milling software that you want to use. Well-known software manufacturers are for example Autodesk, Siemens or Mastercam. The milling machine software programs allow you to program your machine and mill the desired workpieces.

Care and maintenance of milling CNC machine

CNC milling machine is a high-quality and expensive machine. To keep it working well for a long time, you should care for and maintain it regularly. You should ask your machine manufacturer which care and maintenance intervals are recommended for your milling machine.

Generally, it is advisable to clean the machine after each use. To do this, you should wipe it with a dry cloth and then rub it with a milling machine cleaning product. However, be careful not to use machine cleaners that contain chemicals, as they can damage the milling CNC machine.

The milling CNC machine should be cleaned daily with compressed air after milling. The chips should be thoroughly removed from the milling table and milling CNC machine housing. During this process, it is strongly recommended to wear protective goggles and a respiratory mask when machining carbon, for example. Otherwise, these micro-dust particles can cause damage to health.

In case of excessive dust accumulation, an extraction system is recommended. This sucks the CNC milling machine dust directly and prevents too much accumulation.
If you follow these care instructions, you will enjoy your milling machine for a long time and the machine will be your faithful companion for a long time.

Fix milling CNC machine errors

If you want to fix machine errors, you should first contact the CNC manufacturer. This is usually the best person to help you. Alternatively, you can also contact a CNC milling machine specialist workshop. They can also help you with milling CNC machine errors.

If you want to fix CNC milling machine errors yourself, you should first inform yourself thoroughly. CNC milling machine errors can be very complex and you should therefore think carefully about whether you want to fix them yourself or whether you would rather make a quick call to the CNC milling machine manufacturer or to the CNC milling machine specialist workshop.

However, some milling CNC machine errors you can fix yourself. These include CNC milling machine errors such as a CNC milling machine error in the CNC program. In case of CNC program errors, you can check the CNC code and correct it if necessary. However, please note that you should only correct CNC program errors yourself if you are familiar with CNC programming.

CNC miller hardware faults can also be fixed by yourself. But to rule out a hardware defect, you can first restart the milling machine. This procedure should always be done when the machine tool hangs and nothing works anymore. Do not do this too often, as a CNC mill restart can put a strain on the hardware.

If you strongly suspect a defect in the hardware, always contact the machine manufacturer. As a rule, only the manufacturer can help you. It may be possible to make a claim under the warranty. However, the warranty may be voided if you try to fix CNC milling machine errors yourself.

Buy milling CNC machine

If you want to buy a milling CNC machine, you should first inform yourself well. CNC mills can be very expensive and you should therefore think carefully about which mill is best suited to you and your needs.

First, you should think about the purpose for which you want to buy the milling machine. For example, do you want to use CNC millers for woodwork, metalwork or plastic work? Depending on the purpose for which you want to buy the tool, you should choose an appropriate milling cutter model.

You should also consider what CNC machine features you need. For example, some CNC routers offer tool changers, rotary tilt functions, or pallet changers. Likewise, such a machine can provide many additional functions. For example, some milling machines offer tool changers, turn/tilt functions, or pallet changers.

Another important point when buying milling CNC is the size of the machine. CNC mills are available in different sizes. However, the machine size should always be chosen in consideration of the purpose of the milling machine and the functions of the machine tool. Likewise, in terms of footprint and workpiece sizes, the CNC milling machine size must be considered.

Another important point is the machine tool control. Depending on the manufacturer, machines can be equipped with different CNC controls. Basically, each machine can be programmed with G-code and M-code.

The prices can be very different. However, CNC machine prices always depend on the functions, machine control and size. For a modern milling CNC machine, you can expect from about 300,000 to 1 million euros. However, depending on the additional functions and size, a machine can cost more than a million euros.


These were basic tips that you should consider if you want to buy a milling CNC machine and use it in your manufacturing or business. Such a machine is not exactly a cheap device and should therefore be well planned.
Inform yourself in advance which functions are actually needed. You should also consider the size of a CNC machine and adapt it to your applications.

We at METROM offer you an incredible support regarding the choice of one of our unique 5-axis milling CNC machines. Feel free to check out the P-Series and PM-Series and see what types of machines we build before contacting us. We look forward to helping you make that decision!

Let's help you!

(+49) 03722-598-63-10
Contact us

Recent Posts