One of the most popular technologies for producing prototype parts is known as CNC machining. It is a subtractive technique where you gradually create the different prototype parts by eliminating materials from the larger base shape. In simple terms, you cut sections from a formless block known as the workpiece.

The excess material from the workpiece is recycled or discarded. In the end, you have a finished prototype part. The best part is that complex CNC machines can cut the workpiece in creative ways, which is why you can produce parts with intricate details.

If you want to use CNC machine parts for prototyping, you are in the right place. Here is your complete guide.

Here are the top advantages you can reap if you opt for CNC machine parts for prototyping:

One of the top advantages of CNC machine parts is that it will enable you to create a prototype from solid materials. You don’t get this benefit in 3D printing, which is why many people are shifting towards CNC machining. Because of this, you will find that there are many similarities between the mechanical properties of the injection-molded and CNC-machined parts.

So, if you want to create a prototype using solid and durable materials, such as different metals, then CNC machine parts are a perfect choice. Furthermore, it will be much more feasible for you to use this than a 3D printer.

Did you know that CNC machine parts can enable you to work with expensive materials or ones that are not available with other prototype technologies? For example, aluminum is a common material, but it can be incredibly expensive if you use it to create 3D printing models. On the other hand, your cost with CNC machining will be lower with aluminum.

That is why it is one of the most cost-effective ways to get the most out of your prototyping. You can select expensive and rare materials and create prototypes at a much lower cost than other methods.

An advantage that enhances the production process is the high degree of repeatability with CNC machine parts. That is because CNC machining is a digital procedure that produces parts from a computer file. Because of this, the prototype resembles the digital 3D design incredibly closely.

Besides that, the digital 3D design allows you to make any precise and quick alterations. So, engineers can go back and create changes for the next prototype. If you need high repeatability in your production process, CNC machine parts are ideal.

CNC machine parts can control the production process through computer software. The CNC machine parts will follow the instructions from the computer as accurately as possible. But, of course, the biggest advantage is that it can follow these instructions over and over again, creating consistency.

That is why if you want to develop new iterations of the prototype, then you can use CNC machining. It will guarantee you the consistency you need to create high-quality prototypes in no time.

Prototypes made with CNC machine parts can be created with excellent quality surface finishes. Of course, this depends on the material you select and the post-processing procedures you use. However, the parts from the CNC machine can be left as powder coated, machine, anodized, bead blasted, and sanded with different grits.

While 3D printing can leave layer lines, CNC machining will help you achieve one of the best surface qualities. It will have incredible quality to serve as a final prototype for presentations in marketing materials or even a crowdfunding campaign.

Finally, the CNC machine parts are compatible with many strong materials. These include aluminum, steel, stainless steel, titanium, magnesium, zinc, bronze, brass, and many others. If you opt for 3D printing, you will not have access to these materials at a lower cost.

So, if you want to create prototypes from various materials, we recommend that you opt for the CNC machine parts. It will allow you to create the best prototypes with incredible materials at a low cost in no time.

Now that you are familiar with the advantages of CNC machining for prototyping, here are some cons:

One of the biggest downsides of CNC machine parts are that they are not that accessible to solo makers or small product development teams. That is because CNC machine parts with large work areas and capabilities of working with strong materials can cost you a few thousand dollars.

On the other hand, a 3D printer is much more accessible to solo makers and small product development teams. Of course, if you are running a medium to large-sized business, the CNC machine parts will be the perfect choice for you. That is because you will get a high ROI for a long time to come.

As you know, CNC machine parts utilize rotating cutting tools, which are also known as end mills. These tools remove materials from a stock piece to make parts. In simple terms, this means that as a product developer, you will have to take these considerations into account before designing a prototype. That is because you won’t be able to produce perfectly square interior corners. This is due to the fact that the end mills are round, which is why the interior corners will have a radius regardless of how small your tool diameter is.

These are all the pros and cons you need to know about CNC machine parts prototyping. Of course, it is less accessible than 3D printing for small teams and solo makers, but it is the perfect choice for businesses.

That is why if you want your business to be at the forefront of prototyping technology, you must invest in CNC machine parts. Once you do, you will get a high ROI in the long run.