Custom Online CNC Machining Services

From prototypes to on-demand production parts, get an instant quote for your metal or plastic projects with our online CNC machining services. Choose from 40+ materials, 10+ surface finishes. ISO 9001:2015, ISO 13485 certified.

10s

Instant Quotes

1 day

Lead time

0 pc

MOQ

0.01 mm

Tolerances

Our CNC Machining Services

For engineers, product developers, and designers requiring prototyping and low-volume production, RapidDirect’s custom CNC services is the solution. From simple to intricate designs with tight tolerances, our ISO 9001 certified CNC machine shops ensure excellence. Our fast CNC machining capabilities promise quality custom machined parts delivered within 1 day.

Custom CNC Milling Services

CNC milling performs multi-axis milling operations, including 3, 4, and 5-axis machining processes. Offer precision and allow for the creation of detailed and specific geometries from metal or plastic blocks.

Custom CNC Turning Services

CNC turning uses CNC lathes and turning centers to shape metal rob stock, focusing primarily on cylindrical parts. Ensure components achieve consistent dimensions and smooth finishes.

Gallery of CNC Machined Parts

View the custom CNC machined prototypes and end-use parts we’ve produced for our customers.

Order CNC Machining Parts Online: Easy & Fast

Upload your design file to our Instant Quote Platform and instantly receive pricing, lead time, and DFM details for your CNC components. Specializing in CNC machining for metals and plastics, we provide adaptive production and shipping solutions to align with your product development needs.

Instant Quotation

Eliminate long waits and reduce uncertainty. With our instant online quotations, you gain clear cost insights immediately, and free & professional DFM feedback, streamlining your CNC machining decisions.

Online Annotation

Say goodbye to tedious back-and-forths. Directly annotate on your 3D drawing online and convey specific changes or queries instantly via live chat. Ensure precise machining requirements are communicated and understood without ambiguity.

All-in-One Project Management

Take full control of your CNC projects. Manage both quotes and orders in a unified platform. Effortlessly oversee every project, ensuring that each stage is transparent and easily accessible.

Team Collaboration

Strengthen your CNC coordination. Create teams, invite members instantly, and access shared quotes & orders with ease. Include key departments like accounting, ensuring smooth payment oversight and execution.

Custom Online CNC Machining Solutions: From Concept to Completion

Begin with a prototype, transition to small batches, and end with precise parts made just for your project. Every solution, designed for your needs.

Rapid Prototyping

Turn ideas into reality quickly with Rapid Prototyping. Detect and fix design errors early, saving time and costs, while ensuring your CNC machined product is market-ready.

Low-Volume Production

Need a limited batch without the wait? Our Low-volume Production gets you machined parts fast, without the burden of large-scale orders, balancing costs and efficiency.

On-Demand Production

Get flexibility for any order size with our On-Demand Production. freeing customers from volume constraints while guaranteeing CNC machining precision and quality.

CNC Machining Materials

A number of materials can be used in CNC machines, giving you various of options to complete rapid prototyping to production runs of custom complex parts. For your manufacturing needs, we provide instant quotations of 40+ metals and plastics, and even you can compare prices for different machining materials.

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Aluminum
Copper
Brass
Stainless Steel
Titanium
Plastics

Plastics are also very popular option for CNC machining because of its wide choices, relatively lower price, and significantly faster machining time needed. We provide all common plastics for CNC machining services.

POM	PEEK	HDPE	PET
Nylon	PTFE	PVC	PP
ABS	PC	PMMA

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CNC Machining Surface Finishes

CNC machining leaves visible tool marks during the process of removing portions of the block’s surface to create desired shapes. If don’t want as-machined parts, select a surface finishing for your custom parts. At RapidDirect, we offer several common surface finishes that help improve functionality and aesthetics.

Name

Description

Materials

Color

Texture

Link

Anodizing	Anodizing improves corrosion resistance, enhancing wear resistance and hardness, and protecting the metal surface. Widely used in mechanical parts, aircraft, and automobile parts, precision instruments, etc.	Aluminum	Clear, black, grey, red, blue, gold.	Smooth, matte finish.	Learn More>>
Bead Blasting	Bead blasting results in parts with a smooth surface with a matte texture. Used mainly for visual applications and can be followed by other surface treatments.	ABS, Aluminum, Brass, Stainless Steel, Steel	N/A	Matte	Learn More>>
Powder Coating	Powder coating is a type of coating that is applied as a free-flowing, dry powder. Unlike conventional liquid paint which is delivered via an evaporating solvent, powder coating is typically applied electrostatically and then cured under heat or with ultraviolet light.	Aluminum, Stainless Steel, Steel	Black, any RAL code or Pantone number	Gloss or semi-gloss	Learn More>>
Electroplating	Electroplating can be functional, decorative or corrosion-related. Many industries use the process, including the automotive sector, in which chrome-plating of steel automobile parts is common.	Aluminum, steel, stainless steel	N/A	Smooth, glossy finish	Learn More>>
Polishing	Polishing is the process of creating a smooth and shiny surface, either through physical rubbing of the part or by chemical interference. The process produces a surface with significant specular reflection, but in some materials can reduce diffuse reflection.	Aluminum, Brass, Stainless Steel, Steel	N/A	Glossy	Learn More>>
Brushing	Brushing is a surface treatment process in which abrasive belts are used to draw traces on the surface of a material, usually for aesthetic purposes.	ABS, Aluminum, Brass, Stainless Steel, Steel	N/A	satin	Learn More>>

CNC Machining Tolerances

For metals, our RapidDirect CNC machining service adheres to the ISO 2768-m standard, and for plastics, we follow ISO 2768-c. For custom tolerances, mark them clearly on your drawing.

Standards	CNC Milling	CNC Turning
Maximum Part Size	4000×1500×600 mm 157.5×59.1×23.6 in.	200×500 mm 7.9×19.7 in.
Minimum Part Size	4×4 mm 0.1×0.1 in.	2×2 mm 0.079×0.079 in.
Minimum Feature Size	Φ 0.50 mm Φ 0.00197 in.	Φ 0.50 mm Φ 0.00197 in.
Standard Tolerances	Metals: ISO 2768-m Plastics: ISO 2768-c	Metals: ISO 2768-m Plastics: ISO 2768-c
Linear Dimension	+/- 0.025 mm +/- 0.001 in.	+/- 0.025 mm +/- 0.001 in.
Hole Diameters (Not Reamed)	+/- 0.025 mm +/- 0.001 in.	+/- 0.025 mm +/- 0.001 in.
Shaft Diameters	+/- 0.025 mm +/- 0.001 in.	+/- 0.025 mm +/- 0.001 in.
Edge Condition	Sharp corners will be removed in the form of a chamfer or radius. The size of the chamfer, or resulting radii, must be indicated on the drawing.
Threads and Tapped Holes	Diameter: Φ 1.5-5 mm, depth: 3×diameter Diameter: Φ 5 mm or more, depth: 4-6×diameter	Diameter: Φ 1.5-5 mm, depth: 3×diameter Diameter: Φ 5 mm or more, depth: 4-6×diameter
Threads and Tapped Holes	RapidDirect can produce threads of any specification and size required by our customers.
Text	Minimum width of 0.5 mm, depth of 0.1 mm RapidDirect can use CNC engraving or laser carving to create standard text based on customers’ requirements.	RapidDirect can use laser marking to create standard text for CNC turned parts.
Lead Time	5 business days	5 business days

Ultimate Guide to CNC Machining

The comprehensive guide provides you with the basics, design considerations, materials, surface finish, cost, and more about CNC machining to help you create quality machined parts with aesthetic appearance.

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CNC Machining Case Study

Andrea, a skilled mechanical engineer from Italy, leveraged RapidDirect’s advanced 5-axis CNC machining services to create a high-quality passive exoskeleton prototype. This design enhances human power and reduces physical fatigue.

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CNC Machining Overview

What's CNC Machining?

CNC Machining, or Computer Numerical Control Machining, is a manufacturing technique where computer-controlled devices are used to remove layers from a material, creating detailed parts or components. Through a combination of tooling and precise machine movement, it produces parts to exact specifications.

What's the CNC Machining Process?

The CNC machining process begins by designing a part in CAD software. This design is then converted into a set of machine commands using CAM software. The CNC machine reads these commands to precisely cut and shape the material, producing a finished part that matches the digital design.

What are the Advantages of CNC Machining?

CNC Machining offers unparalleled precision and repeatability, making it a top choice for industries requiring intricate parts. Its ability to handle a variety of materials, from metals to plastics, combined with fast production times and consistent quality, makes it an essential method in modern manufacturing.

What's the Difference Between 3D Printing and CNC Machining?

3D printing is an additive manufacturing method, building parts by depositing material layer by layer. In contrast, CNC machining is a subtractive method, starting with a solid block of material and removing sections until the desired part is achieved. While 3D printing is often favored for complex geometries and rapid prototyping, CNC machining excels in durability, precision, and material versatility.

FAQs About RapidDirect CNC Services

1. What are your maximum dimensions for CNC machining?

RapidDirect is proficient in facilitating the production and prototyping of large machined parts, be it metal or plastic. We boast a substantial CNC machining build envelope measuring 2000 mm x 1500 mm x 300 mm. This ensures we can accommodate even sizable parts, including those tailored for furniture or architectural applications.

2. Can you detail the tolerances of your machined parts?

Absolutely! The exact tolerance we offer is contingent upon your specific requirements. For CNC machining, our metal components adhere to the ISO 2768-m standards, while our plastic parts align with ISO 2768-c standards. It’s worth noting that the demand for higher precision will correspondingly increase the cost.

3. Can you provide insight into your CNC machining capacity?

Of course! RapidDirect has the capability to produce upwards of 10,000 diverse prototypes on a monthly basis, spanning from simple to intricate designs. Our infrastructure is bolstered by 120 state-of-the-art CNC machines, and we pride ourselves on having a team of over 100 skilled technical experts.

4. What materials can be used with RapidDirect CNC machining?

RapidDirect CNC Services is versatile in terms of material compatibility. Commonly used CNC materials include metals like aluminum, steel, brass, and copper, as well as plastics such as ABS, Polycarbonate, and POM. However, specific materials availability might vary, so it’s always a good idea to check directly with the service provider.

5. How much does your CNC machining service cost?

The expense associated with our CNC machining service is variable and directly influenced by the distinct attributes of your project, including its design and tolerance specifications. The machining duration for the chosen material is another key determinant of the cost. To illustrate, should you require a part where the combined machining and material expense is $2, with an additional setup charge of $200, the total cost for a singular part would amount to $202. Contrastingly, should you commission the production of 200 identical parts, the cost per unit would be just $3! Learn more about the CNC machining costs.

6. Is there a minimum order quantity (MOQ) for CNC machining at RapidDirect?

RapidDirect caters to both one-off prototype and large-scale production runs. Thus, there is typically no strict MOQ. Whether you need a single part or thousands, RapidDirect aims to provide a solution.

7. How long does it take to receive a part once an order is placed?

Lead times can vary based on the complexity of the design, the chosen material, and the current workload at RapidDirect. However, one of the advantages of CNC machining is its speed, especially for simpler parts. Once the setup is complete, machining times can be relatively quick. Parts delivered as fast as 1 day! But for an accurate estimate, it’s best to request for quotes directly.

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