CNC Machining

Accelerate prototyping, product development and low to mid volume production with a faster, easier way to get precision machined parts. Upload your designs for instant pricing and DFM feedback. And receive your parts as quickly as two days.

Services

CNC Machining Services

CNC Milling

3, 4 and 5-axis machining capabilities for simple and complex geometries.

CNC Turning

Standard and live tooling capabilities for cylindrical parts such as pins, shafts, and spacers.

Electrical Discharge Machining

Wire and Sinker EDM are non-contact machining methods for cutting deep pockets, complex internal features, and holes with a keyway.

What is CNC Machining?

CNC (Computer Numerical Control) machining is a highly efficient and precise manufacturing process that employs automated, high-speed cutting tools to shape and refine workpieces made from metals or plastics. The primary types of CNC machines include 3-axis, 4-axis, and 5-axis milling machines, lathes, and routers, each offering different levels of complexity and capability. In CNC machining, the approach to cutting can vary: the workpiece might stay fixed while the cutting tool moves, the cutting tool might stay stationary while the workpiece rotates and shifts, or both the tool and workpiece might move simultaneously to achieve the desired geometry.

When machinists receive a CAD (Computer-Aided Design) model, also known as a 3D file, they begin by programming the tool paths based on this design. Expert machinists can optimize these tool paths to reduce machining costs while ensuring tight tolerances are met. CNC machines can precisely cut a wide array of materials, including metal alloys, plastics, wood, stone, and ceramics. This versatility allows for the production of custom machined parts across a multitude of industries such as automotive, aerospace, medical, robotics, electronics, and industrial manufacturing.

CNC Machining Tolerances

Feature	Description
Maximum Part Size	Milled parts up to 80” x 48” x 24” (2,032 x 1,219 x 610 mm). Lathe parts up to 62” (1,575 mm) length and 32” (813 mm) diameter.
Standard Lead Time	3 business days
General Tolerances	Tolerances on metals will be held to +/- 0.005″ (+/- 0.127 mm) in accordance with ISO 2768 unless otherwise specified. Plastics and composites will be +/- 0.010”.
Precision Tolerances	Xometry can manufacture and inspect to tight tolerances, including sub +/- 0.001″ tolerances, per your drawing specifications and GD&T callouts.
Minimum Feature Size	0.020” (0.50 mm). This may vary depending on part geometry and chosen material.
Threads and Tapped Holes	Xometry can accommodate any standard thread size. We can also machine custom threads; these will require a manual quote review.
Edge Condition	Sharp edges are broken and deburred by default
Surface Finish	The standard finish is as-machined: 125 Ra or better. Additional finishing options can be specified when getting a quote.

How to work with us

1.Sending CAD Files To Email or LinkedIn

First, you can send CAD files and detailed information (material, quan-tity, tolerance, etc.) to us Email or Linkedin .

2.Manufacturability Analysisand Offering Quotation

Secondly, we will analyze manufactur-ability based on drawings of productsand give you a favorable quotation.

3.Start manufacturing!

Thirdly, we will start manufacturing process once all relevant deatials are fully confirmed.

4.Parts are Completedand Shipped

Finally, we will carefully pack and shipthe goods when the products are completed.

LET’S DO IT!

We Are Here For You

Ready to Get a Custom CNC Machining Services? Free shipping available for domestic CNC Machining orders ; learn more!

CNC Machining Design Tips

Feature	Design Consideration
Internal corner fillets	Ensure that internal corner fillets have a radius 0.020” – 0.050” greater than a standard drill size. Maintain a drill diameter to depth ratio of 1:6 (1:4 recommended) for internal corner radii.
Floor fillets	Size floor fillets smaller than corner fillets, allowing the same tool to efficiently clear material from the interior.
Undercuts	Design undercuts to standard sizes, positioning them away from corners for accessibility by the cutting tool.
Tapped/threaded hole depth	Extend tool clearance slightly beyond the tapped hole depth to guarantee complete threads.
Complexity	Minimize the number of small cuts to reduce CNC machining costs. Only incorporate necessary features to strike a balance between function and aesthetics.

* Quoting response times reflect requests received during business hours, requests received outside business hours will be addressed the following business day.

CNC Machining Parts Made By BOYI

Name	Applicable Materials	Colors	Can Be Applied with
Alodine	Aluminum, Magnesium	Golden, Clear	Chemical treatment
Anodizing	Aluminum, Titanium	Various	Dyes and chemicals
Black Oxide	Ferrous Metals (Steel, Stainless Steel)	Black	Oxidation process with hot and cold baths
Electroless Nickel Plating	Various Metals	Silver	Chemical deposition without electrical current
Electropolishing	Stainless Steel, Aluminum	Silver, Bright	Electrolytic process
Hand Polishing	Metals (Aluminum, Stainless Steel, etc.)	Customizable	Manual polishing with abrasive materials
Media Blasting	Metals, Plastics	Natural Finish	High-pressure air and abrasive beads
Nickel Plating	Various Metals	Silver	Electroplating process
Passivation	Stainless Steel	Transparent	Chemical treatment
Powder Coating	Metals (Steel, Aluminum, etc.)	Wide Range	Powder particles and heat
Tumbling	Metals (Aluminum, Brass, etc.)	Matte Finish	Abrasive media and rotating barrel
Vapor Polishing	Plastics, Metals	Clear, Smooth	Vaporized solvent and polishing agents
Zinc Plating	Steel, Iron	Silver	Electroplating process

Need Help?

FAQs

How does CNC machining operate?

CNC machining operates through computer numerical control, where automated tools and machinery follow precise programming to cut, shape, and assemble materials with high accuracy.

• In what ways does CNC machining stand apart from traditional machining methods?

Compared to traditional machining, CNC machining offers greater precision and efficiency, as it is computer-controlled and eliminates the need for manual intervention in each step of the process.

• Which industries commonly employ CNC machining for their production needs?

The history of CNC machining dates back to the 1940s, evolving from early numerical control systems. Over time, technological advancements have refined CNC machining into a widely adopted manufacturing method.

• What is the historical background of CNC machining and its evolution over time?

To ensure precision and quality, inspection options for CNC machined components include coordinate measuring machines (CMM), optical measurement systems, and rigorous visual inspections.

• What options are available for inspecting the precision and quality of CNC machined components?

To ensure precision and quality, inspection options for CNC machined components include coordinate measuring machines (CMM), optical measurement systems, and rigorous visual inspections.

• What tolerances do you maintain for machined parts to ensure accuracy and reliability?

Tolerances for machined parts vary based on project requirements but are consistently maintained to ensure accuracy and reliability in the final product.

• Could you elaborate on your CNC machining and turning capabilities in terms of materials, sizes, and complexities?

CNC machining and turning capabilities cover a wide range of materials, sizes, and complexities, including metals, plastics, and composites, with the ability to handle both small and large-scale projects.

• Do you provide Quick-Turn CNC Machining services for projects with time-sensitive requirements?

Yes, Quick-Turn CNC Machining services are available to meet the time-sensitive requirements of projects, providing efficient and rapid manufacturing solutions.

Expanding Horizons: The Versatility of CNC Machining Services

Computer Numerical Control (CNC) machining has revolutionized the manufacturing landscape, offering unparalleled precision, efficiency, and versatility. This technology enables the automation of complex and intricate tasks, ensuring high levels of accuracy and repeatability. CNC machining services are integral to a variety of industries, each benefiting from the unique capabilities of this advanced manufacturing method.

Aerospace Industry

In the aerospace sector, CNC machining is indispensable for producing critical components that demand the highest levels of precision and durability. Parts such as turbine blades, engine components, and structural elements are crafted from high-performance materials like titanium and aluminum alloys. The stringent safety and performance standards in aerospace manufacturing necessitate the use of CNC machines, which can achieve the exacting tolerances and surface finishes required for flight-ready parts.

Automotive Industry

The automotive industry relies heavily on CNC machining for both prototyping and production. Engine blocks, transmission housings, and other vital components are machined to precise specifications to ensure optimal performance and longevity. CNC machining also plays a crucial role in the development of new vehicle models, allowing manufacturers to rapidly prototype and test new designs. The ability to produce high-quality, consistent parts quickly and efficiently is a significant advantage in this competitive industry.

Medical Devices

CNC machining is critical in the medical field, where precision and reliability are paramount. The production of surgical instruments, orthopedic implants, and medical device components requires meticulous attention to detail and strict adherence to regulatory standards. Materials such as stainless steel, titanium, and medical-grade plastics are commonly used in CNC machining to create parts that meet the rigorous demands of the healthcare sector. The capability to produce complex geometries and fine features makes CNC machining ideal for custom medical solutions.

Electronics Industry

In the electronics industry, CNC machining is essential for manufacturing enclosures, heat sinks, and various intricate components. The demand for miniaturization and precision in electronic devices necessitates the use of CNC machines, which can handle the fine tolerances and delicate features required. Materials like aluminum, copper, and specialized plastics are often used to create parts that provide both functionality and protection for electronic circuits.

Defense and Military

The defense and military sectors utilize CNC machining to produce a wide range of critical components, from firearm parts to vehicle components and specialized equipment. The ability to work with high-strength materials and achieve precise tolerances ensures that parts meet the rigorous demands of military applications. CNC machining provides the reliability and consistency necessary for the production of equipment that must perform flawlessly in extreme conditions.

Industrial Equipment

CNC machining is also widely used in the production of industrial equipment and machinery. Parts for pumps, valves, compressors, and other mechanical systems are often machined to exact specifications to ensure efficient and reliable operation. The versatility of CNC machining allows manufacturers to produce both small batches and large production runs with consistent quality.

Renewable Energy

The renewable energy sector benefits from CNC machining in the production of components for wind turbines, solar panels, and hydroelectric systems. High-precision parts such as turbine blades, mounting brackets, and electrical connectors are essential for the efficient generation and transmission of renewable energy. CNC machining provides the capability to produce durable, high-performance components that meet the unique requirements of renewable energy applications.

Testimonials

See What Our Customers Say

"BOYICNC stands out as more than just a supplier; they are collaborative problem solvers. In the course of our projects, challenges inevitably arise, and BOYICNC has consistently demonstrated a proactive approach in finding solutions. Their engineering team engages with ours, providing valuable insights and recommendations to optimize designs for manufacturability. This collaborative spirit has not only streamlined our production processes but has also strengthened our product offerings."

Jon BakkenProcurement Manager at NexGen Innovations

"BOYICNC has been instrumental in our cost-effective OEM customization journey. Their ability to provide tailored solutions without compromising quality has significantly impacted our bottom line. The transparent communication regarding costs and the flexibility in adapting to our evolving needs have made them a trusted partner. BOYICNC doesn't just offer manufacturing services; they offer a strategic partnership that adds value to our entire product development lifecycle."

Andrea VelleR&D Lead at InnovateTech Solutions

"Working with BOYI has been a game-changer for our production timelines. The team's commitment to delivering on time is unmatched. In the fast-paced world of OEM manufacturing, meeting deadlines is crucial, and BOYI has proven time and again that they not only understand the urgency but also have the capability to deliver high-quality custom components within the specified timeframes. Their reliability is a key factor in our continued partnership."

Kylo JamesSupply Chain Director at Precision Dynamics

"BOYI has consistently impressed us with their precision in manufacturing custom OEM components. From the intricate details to the overall quality, they have exceeded our expectations. The attention to detail in their production process ensures that each part meets our specifications, contributing to the success of our final products. It's not just about getting the job done; it's about getting it done right, and BOYI has consistently delivered on that front."

Isa HolmgrenEngineering Manager at TechInnovate Corp

A Quick Guide To Designing CNC Machined Parts

Optimize your designs by removing unnecessary features and reducing complexity. This will lower CNC machining costs and time, resulting in faster and more efficient production of high-quality parts.

1. Avoid Excessively Thin Walls

Thin walls can be problematic in CNC machining due to their tendency to vibrate, deform, or even break during machining. As a rule of thumb, walls should be at least 0.8mm (0.03 inches) thick for metals and 1.5mm (0.06 inches) for plastics. Ensuring adequate wall thickness helps maintain structural integrity and reduces the risk of part failure.

2. Avoid Designing Features That Cannot Be CNC Machined

Not all features can be easily machined with CNC technology. For example, undercuts, deep pockets, and complex internal geometries can be challenging to machine. When designing parts, consider the capabilities of CNC machines and avoid features that require specialized tools or processes, as this can increase production time and cost.

3. Avoid Excessive Use of Tight Tolerances

While tight tolerances are sometimes necessary, over-specifying them can lead to increased manufacturing costs and longer production times. Use tight tolerances only where absolutely necessary and opt for standard tolerances for non-critical dimensions. This approach balances precision with efficiency.

4. Avoid Unnecessary Aesthetic Features

Aesthetic features like intricate patterns, text, and logos can add complexity to the machining process without adding functional value. If aesthetics are not a primary concern, simplifying the design can reduce machining time and cost. When aesthetic features are required, consider alternative methods such as laser engraving or printing.

5. Design Cavities With Accurate Depth-to-width Ratios

Deep cavities can be difficult to machine, leading to tool deflection and poor surface finish. To optimize machinability, maintain a depth-to-width ratio of less than 4:1. This ensures that the tools can reach and machine the cavity effectively without compromising quality.

6. Add a Radius When Designing Internal Vertical Edges

Sharp internal corners are challenging to machine and can cause stress concentrations in the part. Adding a radius of at least 1/3 of the cavity depth at internal vertical edges allows for smoother tool paths and reduces the likelihood of stress-related failures. This also enhances the durability of the part.

7. Limit Thread Length

Excessively long threads can be difficult to machine and may not provide additional holding strength. As a general rule, thread lengths should be no longer than three times the diameter of the hole. This ensures efficient machining and adequate thread strength without unnecessary complexity.

8. Avoid Extremely Small Features

Small features can be difficult to machine accurately and may require specialized micro-tools. To avoid complications, design features with a minimum size of 2.5mm (0.1 inches) for metals and 1.0mm (0.04 inches) for plastics. Larger features are easier to machine and more reliable in the final product.

9. Design Holes With Standard Sizes

Using standard drill bit sizes for holes simplifies the machining process and ensures compatibility with commonly available tools. This reduces the need for custom tooling and minimizes production costs. Refer to standard size charts when designing holes to ensure they match available drill sizes.

10. Avoid Unnecessary Text and Lettering

Text and lettering can add significant complexity to the machining process. If text is necessary for identification or branding, consider using raised or recessed lettering instead of engraved text. This approach is easier to machine and can be achieved with standard CNC tools.

Latest News

Latest News in Machine Machining: “Stay Informed, Stay Ahead!”

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