Why engineers use 3D Hubs for CNC machining
Upload your parts to get a free quote
Available CNC machining services
Our network of Manufacturing Partners gives you easy access to diverse machining capabilities to serve all your manufacturing needs.
| Name | Description |
|---|---|
| CNC Milling service | CNC milling is a subtractive manufacturing process that rapidly removes material from metal or plastic blocks to produce precision parts with tight tolerances.Learn more about our milling capabilities |
| CNC Turning service | CNC turning produces parts with cylindrical features by removing material from metal or plastic rods using cutters, center drills or live tooling. Learn more about our turning capabilities |
| 5-axis CNC machining | 5-axis CNC machines can produce parts with complex geometries and increase productivity by minimizing the number of machine setups. Learn more about our 5-axis capabilities |
Available materials for CNC machining
Here is a list of our standard CNC machining materials available through our online platform.
| Plastics | Aluminum | Stainless steel | Other steels | Other metal |
|---|---|---|---|---|
| ABS | 6061-T6 | 303 | Mild steel 1018 | Brass C360 |
| Nylon 6 | 6082 | 304 | Mild steel 1045 | Copper C101 |
| POM (Delrin) | 7075 | 316 | Mild steel A36 | Copper C110 |
| Polycarbonate | 5083 | 2205 Duplex | Alloy steel 4140 | Titanium Grade 2 |
| PVC | 17-4 | Alloy steel 4340 | ||
| HDPE | 420 | Tool steel O1 | ||
| PTFE (Teflon) | Tool Steel A2 | |||
| PEEK | Tool Steel D2 | G-10 | Tool Steel S7 | Nylon 30%GF |
More materials and heat treatments are available upon request
Available surface finishes for CNC machining
Surface finishes are applied after machining and can change the appearance, surface roughness, hardness and chemical resistance of the produced parts.
| Name | Description | |
|---|---|---|
 |
As Machined (standard) | ~125 RA µin (3.2 RA µm). Minor tool marks will be visible on the part. |
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Smoothed | Parts are machined at a lower feed rate in order to achieve a surface roughness of ~62.5 RA µin (1.6 RA µm). Surface roughness can be decreased up to ~32 RA µin (0.8RAµm) upon request. |
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Bead Blasted | Bead blasting adds a uniform matte or satin surface finish on a machined part, removing all tool marks. Mainly used for aesthetic purposes. |
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Anodized Clear or Color (type II) | Anodizing adds a thin, hard, non-conductive ceramic coating on the surface of aluminum parts, increasing their corrosion and wear resistance. Available in a variety of colors. |
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Anodized Hardcoat (type III) | Hardcoat anodizing produces a thicker ceramic coating providing excellent corrosion and wear resistance. for functional applications. |
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Powder Coated | Powder coating adds a thin layer of strong, wear and corrosion resistant protective polymer paint on the surface of a part. Available in a large range of colors. |
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Electropolished | Electropolishing is an electrochemical process used to polish, passivate and deburr metal parts. It is useful to reduce surface surface roughness. |
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Black oxide | Black oxide is a conversion coating used to improve corrosion resistance and minimize light reflection. |
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Brushing | Brushing is produced by polishing the metal with grit resulting in a unidirectional satin finish. |
Other surface finishes are also available. Learn more about our metal and plastic surface finishing capabilities here.
Dorien Sarsby
UK Strategic Account Manager
Polly Calhoun
US Strategic Account Manager
David Nguyen
EMEA Sales Engineer
3D Hubs for Business
Get in touch with our sales representatives to set up your company account and access these services:
- NET30 payment terms
- Non-disclosure agreements
- Additional services: sheet metal, urethane casting and part marking
- Design verification program (learn more)
- Dedicated account manager
- ISO 9001, material certifications, test reports and full dimensional reports
Contact Sales or call us directly on
Tolerances
The table below summarizes the standard tolerances of the parts produced by certified 3D Hubs Manufacturing Partners. Tolerances up to .0008” (0.020mm) are available upon request.
| Part size / Dimension | Tolerance | Angularity |
|---|---|---|
| < 12’’ (300 mm) | ± .005’’ (0.125 mm) | ± 0.5° |
| < 24’’ (600 mm) | ± .010’’ (0.250 mm) | ± 1.0° |
| < 36’’ (900 mm) | ± 1/64’’ (0.400 mm) | ± 1.0° |
Tightest tolerance: ±.0008’’ (0.020 mm) Tighter tolerances are examined on a case by case basis with your technical drawings.
Quality assurance
- ISO9001 certified Manufacturing Partners on request
- Inspection report included in every order. Full dimensional inspection reports on request
- Material certifications and test reports available on request
- Batch inspection in concurrence with ISO2859
- Strict NDA agreements with all Manufacturing Partners
- Manufacturing Partner performance tracking on lead time and quality
Our CNC machining service has been rated 4.8/5
Over 3,678 customers satisfied with our service.
“The service was done at a good quality with a reasonable price. Fast delivery as expected”
“fast, great quality, competitive instant pricing”
“Quick turn around - Quality precision - Above my expectations”
“The part was flawless.”
“Parts were fabricated to spec and delivered on time and on budget”
“Fantastic machine finish. One of the best anodize finishes I've gotten from a prototype shop. Tolerances were held perfect.”
“Looks very nice, all measurements are correct”
“Exceptionally efficient and well organised”
“After fighting for years with local providers, 3DHubs has been my salvation. Parts are of high quality.”
“I like how they were able to quickly sourced my parts at good rate and followed up with manfacture to ensure quality of the parts.”
“we are very impressed and working on an order for 100 more pieces in Sept. thank you!!”
“Awesome quality awesome speed time frame”
“Good and fast communication. Prompt quotion. Parts (milled) were made and delivered in 10 days after ordering. Excellent Quality.”
“Fit, finish and function are perfect.”
“Parts arrived quickly (well packaged), dimensions and tolerances perfect, finishes excellent.”
“Parts came in as expected, on time, and you can't beat the price. The quick quote is awesome and the customer service is great. I would recommend this service, and will also use it again.”
“Exactly what was ordered. Great finish on the product aswell.”
“Beautifully produced double sided spline shaft.”
“Quick and to specifications with a vast choice of material to choose from and many file formats supported.”
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The Essential CNC Cost Reduction Checklist
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Learn how to cut costs in half by optimizing your design with 15 practical design tips!
Rapid CNC prototyping & Precision CNC service
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