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Our CNC machining process

We provide online CNC machining service for rapid prototyping to low-volume production. Choose from a wide range of materials and plastics thanks to our vetted CNC manufacturing partners. From simple parts to complex geometries we guarantee the best quality, short lead times and up-to-spec CNC parts.

3 & 5 axis CNC Milling

CNC Milling is a subtractive process where a rotating cutting tool removes material from a metal or plastic part using 3or 5-axis milling to create precise cnc parts.

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CNC turning

CNC Turning is a machining process in which a cutting tool removes material from a rotating work piece to precisely shape it

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Our CNC materials

Our online cnc machining service offers more than 24+ metal and plastic materials


Stainless Steel

Steel is a versatile and strong material commonly used in CNC machining. It offers excellent mechanical properties, including high tensile strength and durability. Steel is ideal for parts that require robust performance in demanding applications, such as automotive, aerospace, and industrial machinery.

  • AISI 316L
  • AISI 304
  • AISI 420
  • AISI 4140
  • C45
  • See all materials
Aluminum Alloys

Aluminum alloys are lightweight, corrosion-resistant, and easy to machine. They are widely used in CNC machining for applications that require a combination of strength and low weight. Aluminum alloys are commonly used in the aerospace, automotive, and consumer electronics industries.

  • Aluminum 5083
  • Aluminum 6082
  • ABS Aluminum 6082-T6
  • Aluminum 7075-T651
Copper Alloys

Copper alloys, including brass and bronze, are known for their excellent electrical and thermal conductivity. These materials are easy to machine and are often used in applications such as electrical components, heat exchangers, and plumbing fittings. Copper alloys also exhibit good corrosion resistance and aesthetic appeal.

  • Rame C101
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Bronze Alloys

Bronze alloys are composed primarily of copper and tin, offering good wear resistance, strength, and corrosion resistance. They are commonly used in applications such as bearings, bushings, and gears. Bronze alloys are also valued for their attractive appearance and are used in decorative and architectural elements.

  • Bronzo 12
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Brass Alloys

Brass alloys are composed of copper and zinc, providing excellent machinability and corrosion resistance. Brass is often used in applications that require low friction, such as fittings, valves, and gears. It is also appreciated for its aesthetic properties and is used in musical instruments, decorative items, and hardware.

  • Ottone OT58
  • See all materials

Magnesium is a lightweight metal known for its high strength-to-weight ratio. It is easier to machine than many other metals and is used in applications where reducing weight is crucial, such as in aerospace, automotive, and electronics industries.

Mild Steel

Mild steel, also known as low carbon steel, contains a small percentage of carbon and is known for its ductility and malleability. It is easy to weld and machine, making it suitable for a wide range of applications, including construction, automotive components, and general manufacturing.


POM (Acetal)

POM, also known as Acetal, is a high-strength, low-friction plastic with excellent dimensional stability. It is commonly used for precision parts that require high stiffness and low friction, such as gears, bearings, and bushings.


ABS (Acrylonitrile Butadiene Styrene) is a tough and impact-resistant plastic. It is easy to machine and is widely used in applications such as automotive parts, consumer electronics, and toys.


 PVC (Polyvinyl Chloride) is a versatile plastic known for its chemical resistance and durability. It is used in applications such as piping, medical devices, and electrical insulation.


Foam plastics, such as polyethylene foam, are lightweight and offer excellent cushioning properties. They are used in packaging, insulation, and cushioning applications.


Polycarbonate is a strong, transparent plastic with excellent impact resistance. It is used in applications such as safety glasses, automotive components, and electronic enclosures.

Delrin POM-C

Delrin POM-C is a type of Acetal with high mechanical strength and rigidity. It is used in precision parts requiring high stiffness, low friction, and excellent dimensional stability.

PMMA (Acrylic)

PMMA, or acrylic, is a transparent plastic with good optical properties and weather resistance. It is used in applications such as lenses, light covers, and display screens.


PEI (Polyetherimide) is a high-performance plastic with excellent thermal stability and mechanical properties. It is used in applications such as aerospace, medical devices, and electrical components.


PA, or nylon, is a strong, flexible plastic with good wear resistance. It is used in applications such as gears, bearings, and structural components.


PEEK (Polyether Ether Ketone) is a high-performance plastic with excellent chemical resistance, thermal stability, and mechanical properties. It is used in demanding applications such as aerospace, automotive, and medical devices.

Our CNC machining surface finishes


Surface directly obtained from machining without any additional treatments. It features typical tool marks

  • Roughness Ra 3.2 - 6.3 µm
  • See all materials

Very smooth surface obtained through polishing processes. Used to enhance aesthetics and reduce friction.

  • Roughness: Ra 0.2 - 0.8 µm
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Bead Blasted

Matte surface obtained by blasting small beads or abrasive particles against the part. Removes tool marks and creates a uniform finish.

  • Roughness Ra 1.6 - 3.2 µm
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Electrochemical coating that increases corrosion resistance and aesthetics. Roughness can vary depending on the pre-anodizing treatment.

  • Ra 0.8 - 1.2 µm
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Sand Blasting

Process similar to bead blasting but using sand or other harder abrasives for a rougher surface.

  • Ra 2.5 - 10 µm
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Smooth Machining

Improved surface over as-machined through additional finishing passes, reducing tool marks.

  • Roughness Ra 1.6 - 3.2 µm
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Surface with a matte finish characterized by fine, uniform streaks obtained through brushing.

  • Roughness Ra 0.8 - 1.5 µm
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Powder Coated

Protective and aesthetic coating applied in powder form and then baked to form a hard, durable layer. Roughness depends on the type of powder and application method.


Electrochemical process that removes a thin layer of material to improve surface smoothness and increase brightness.

  • Ra 0.1 - 0.4 µm
  • See all materials

Design Guidelines for CNC Machining

CNC Milling

Max. part size:

550x550x500 mm

Min. part size:

6x6x6 mm


  • ISO 2768: Medium
  • ISO 2768: Fine
  • See all materials


Ra 3.2 or 1.6 µm

Minimum feature size:

3 mm

CNC Turning

Max. part size:

550x550x500 mm

Min. part size:

  • Diameter approx. 1 mm
  • Length min. 5 mm
  • See all materials


  • ISO 2768: Medium
  • ISO 2768: Fine
  • See all materials


Ra 3.2 or 1.6 µm

Minimum feature size:

3 mm

Min. angle for internal cutting:

Approx 30°

Min. edge radius:

0.5 mm

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How it works

Our CNC Machining ordering process

Upload your CAD file

Securely upload your CAD file. We guide you step by step.

Receive an instant online CNC Quote

With our instant online CNC quoting tool, you receive a quote for your CNC parts within minutes. We always make sure to offer at least one alternative


We identify the best CNC machining manufacturer and post processor in our network to build your custom CNC parts. Get direct design & technical feedback(review and check)on your CNC parts.

DfM Feedback

We help you optimise your design so you can get the best possible part

Quality control

We validate & certify product functionality according to the required standards.

Receive your parts

Shipment tracking
and necessary
on-time delivery.

Map of Italy showing our network of local manufacturing partners

We work exclusively with certified, highly vetted local CNC manufacturing partners

We have a carefully curated network of trusted CNC  manufacturing partners which are certified and constantly monitors, leveraging decades of expertise to help you get your CNC parts into production, with flexible access to the technologies you need.

FAQ about our CNC machining service

What is CNC machining?

CNC (Computer Numerical Control) machining is a manufacturing process where pre-programmed software and code control the movement of production equipment. This process allows for the precise cutting, drilling, and shaping of parts from various materials, including metals, plastics, and composites.

How do you select the best manufacturer for my parts?

We carefully evaluate manufacturers based on their capabilities, experience, quality standards, and adherence to industry regulations. Our selection process ensures that your parts are produced by reputable and skilled manufacturers who meet your specific requirements and deadlines.

How can I reduce the cost of my CNC machined parts?

To reduce the cost of CNC machined parts, consider simplifying the design to minimize complex geometries, using standard-sized features to avoid custom tooling, selecting cost-effective materials that still meet your requirements, optimizing batch sizes to benefit from economies of scale, and working with us early in the design process for cost-saving recommendations.

What are the tolerances you guarantee?

While it depends on several factors such as the material, tooling employed, CNC machine, and part design, we guarantee tolerances based on the complexity and requirements of your project. Typical tolerances range from ±0.10 mm for standard machining processes, or better, to a medium grade according to ISO 2768 (mK). For more precise requirements, we can provide tighter tolerances upon request.

How much does CNC machining cost?

The cost of CNC machining varies depending on factors such as material, complexity of the design, tolerances, quantity, and lead time. For a detailed quote, please provide us with your design specifications and requirements.

What are the advantages of CNC machining?

CNC machining offers several advantages, including high precision and repeatability, the ability to create complex and intricate designs, compatibility with a wide range of materials, efficient production with minimal human intervention, and quick turnaround times for prototypes and full-scale production runs.

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