CNC Turning Service

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Lathe & Live tooling •Surface finishing•Lead times from 5 days

Our CNC turning service capabilities

From prototyping to full production runs. Our wide range of CNC lathes and turning centers will allow you to produce highly accurate, high quality parts to meet even your most stringent requirements.

Can’t decide which machining process is best for you? Upload your CAD file for a free quote and manufacturability review that will identify any difficult-to-turn features.

CNC lathe

CNC turning machines are able to provide low cost parts for simple cylindrical geometries. Live tooling is available for more complex geometries and is assessed on a case by case basis.

CNC lathe machine in action.

Maximum capabilities for CNC turning

Part size limitations	Metric units	Imperial units
Maximum part diameter	431 mm	17 in
Maximum part length	990 mm	39 in
Maximum swing over the carriage	350 mm	13.7 in
Maximum spindle through-hole	40 mm	1.5 in

Maximum speed: 1700RPM
Motor power: 640W

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Available materials for CNC machining

Here is a list of our standard CNC machining materials available through our online platform.

CNC Metals

Aluminum	Stainless steel	Mild, Alloy & Tool steel	Other metal
6061-T6	303	Mild steel 1018	Brass C360
6082	304	Mild steel 1045	Copper C101
7075-T6	316L	Mild steel A36	Copper C110
5083	2205 Duplex	Alloy steel 4140	Titanium Grade 1
5052	17-4	Alloy steel 4340	Titanium Grade 2
2014	15-5	Tool steel O1	Invar
2017	416	Tool Steel A2	Inconel 718
6063	420	Tool Steel A3	Magnesium AZ31B
7050	430	Tool Steel D2
A380	440C	Tool Steel S7
MIC 6	301	Tool Steel H13

CNC Plastics

Plastics	Reinforced Plastic
ABS	Garolite G-10
Polypropylene	Polypropylene (PP) 30%GF
Nylon 6	Nylon 30%GF
Delrin (POM-H)	FR4
Acetal (POM-C)
PVC
HDPE
UHMWPE
Polycarbonate
PET
PTFE (Teflon)

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.
	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.
	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.
	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.
	Anodized Hardcoat (type III)	Hardcoat anodizing produces a thicker ceramic coating providing excellent corrosion and wear resistance. for functional applications.
	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.
	Electropolished	Electropolishing is an electrochemical process used to polish, passivate and deburr metal parts. It is useful to reduce surface surface roughness.
	Black oxide	Black oxide is a conversion coating used to improve corrosion resistance and minimize light reflection.
	Chromate conversion coating (Alodine/Chemfilm)	Chromate conversion coating is used to increase the corrosion resistance of metal alloys while maintaining their conductive properties.
	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.

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.

CNC turning design guidelines

The table below summarizes the recommended and technically feasible values for the most common features encountered in CNC machined parts.

Learn more in our Engineering Guide to CNC machining.

Feature	Recommended size	Feasible size
Min. feature size	Ø 2.5 mm	Ø 0.50 mm
Internal edges	R 8 mm	R 0.25 mm
Minimum wall thickness	0.8 mm (for metals) 1.5 mm (for plastics)	0.5 mm (for metals) 1.0 mm (for plastics)
Holes	Diameter:standard drill bit sizes Depth: 4 x diameter	Diameter: Ø 0.5 Depth: 10 x diameter
Threads	Size: M6 or larger Length: 3 x diameter	Size: M2

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

Inspection-checklist

Matt Farr UK Strategic Account Manager

Jennifer Kaari US Strategic Account Manager

David Nguyen EMEA Sales Engineer

For businesses of all sizes

Get in touch with our team to access these services:

Add 3D Hubs as a vendor
ISO 9001, material certifications, test reports and full dimensional reports
Non-disclosure agreements
Urethane casting and part marking
Sample verification program (learn more)
Dedicated account manager

Call us directly on , or email us at sales@3dhubs.com

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