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Custom Parts CNC Mill

Custom Parts CNC Mill Metal Fabrication

Send a 3D model and get milled metal quoted in 12 hours. We cut aluminum, steel, stainless and copper across 127 machines, hold ±0.005 mm, and ship 3-5 days after drawing release.

±0.005 mm tolerance16 5-axis centers4,000 mm max travelNo MOQISO 9001 / IATF 1694912-hour quote
cnc-machining-metal
127High-precision CNC machines
±0.005 mmRepeatable machining tolerance
15 yearsIn business since 2011
99.99%Qualification rate
Where It Goes Wrong

What Actually Costs You Money On Milled Parts

Most machining failures are not exotic. They are ordinary problems that show up after the parts arrive.

01

Do you have a bracket that only fits on the bench?

Hole positions drift once the part reaches assembly. The mating plate will not sit flush, so a technician reworks it by hand. That hour is not on the quote, and it repeats for every unit in the run.

02

Is your supplier quiet after the first sample?

The prototype looked fine. Then the production batch shows tool marks on a sealing face and Ra drifts above the drawing callout. You find out when the leak test fails, not before.

03

Did a thin wall move during clamping?

A 1.5 mm wall deflects under vise pressure. The cutter follows the deflected shape, the wall springs back, and the finished part is out of flatness by more than the tolerance band. It cannot be reworked.

04

Are you waiting on paperwork, not parts?

The shipment clears customs and sits at receiving because the mill test report or certificate of conformity is missing. Your incoming inspection cannot release the lot without it.

How We Machine It

Milling Custom Parts From Your CAD Data

One workflow from 3D model to inspected, documented parts.

cnc-machining-hdpe
Setup And Toolpath

One Setup Instead Of Four

Complex milled parts often need five or six faces cut. On a 3-axis machine that means six fixtures, six re-clamps, and six chances to lose position. Our 16 simultaneous 5-axis machining centers cut the part in one setup, so the datum never moves between operations. Angular holes, undercuts and blended surfaces come off the same setup.

For long parts we run mills with 4,000 × 400 × 150 mm travel and a Ø400 mm rotary table. That range covers long extrusions, weldment plates and long chassis rails that would otherwise be split into two parts and bolted together.

  • 1
    5-axis in one setupFewer datum shifts means tighter position between faces.
  • 2
    16 five-axis centersAlso 12 four-axis mills and 27 three-axis machines for simple work.
  • 3
    Up to 4,000 mmLong rails and large plates stay a single part.

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greatlight-metal-technology-co-ltd-1
Inspection And Documentation

Measured Before It Leaves The Floor

CAM runs in Mastercam 2024, Siemens NX 12 and SolidWorks CAM, posted straight to the controllers. Toolpaths are checked against the model before the first cut, not after. If your part has a feature that cannot be reached with a standard end mill, we flag it in the DFM review within 12 hours.

In-process inspection uses a CMM, laser scanner and touch probe. We verify the features on your GD&T callout while the part is still fixtured, which is when a correction is still cheap. Every batch ships with 100% inspection, and mill test reports or certificates of conformity go out with the parts on request.

  • 1
    CMM and touch probeGD&T checked in process, not only at final.
  • 2
    99.99% qualification rateMeasured across shipped production lots.
  • 3
    Reports on requestMill test reports and certificates of conformity.
Process Choice

Which Cutting Approach Fits Your Part

Match the geometry to the machine before you ask for a price.

Part featureRecommended setupWhy
Angled holes on 3+ faces5-axis simultaneousSingle datum, no re-clamp error
Long rail over 1,000 mm4,000 mm travel millStays one part, no splice joint
Round body with milled flatsMill-turn centerTurning and milling in one cycle
Flat plate, 2 faces only3-axis millLowest cycle time and cost
Thin wall under 2 mm5-axis with light finishing passesReduces clamp deflection
Tight bore, ±0.005 mmMill then precision boreHolds size after heat and stress
What We Run

Milling And Support Services

Milling is the core. These are the steps around it that keep a program moving.

01

5 Axis CNC Machining

Simultaneous 5-axis work for contoured surfaces, angled holes and parts that need one datum across many faces.

02

4 Axis CNC Machining

Rotary table work for cylindrical bodies with milled pockets, flats and slots in a single cycle.

03

3 Axis CNC Machining

Prismatic plates and housings. Fastest route when both faces are flat and reachable.

04

CNC Milling & Turning

16 mill-turn centers combine turning and milling so round parts skip a second operation.

05

Rapid Prototyping

One-off milled prototypes from your 3D model, quoted in 12 hours and shipped in 3-5 days.

06

Part Surface Finishing

Anodizing, plating, powder coating, blasting, brushing and laser marking, applied after machining.

Scope

Machining Scope At A Glance

ItemRangeNote
Tolerance±0.005 mm±0.0002 in on qualified features
As-machined finishRa 1.6-3.2 μmStandard milled surface
High finishRa 0.8-1.6 μmSealing and sliding faces
Fine finishRa 0.2-0.8 μmOn request, limited geometry
Max part size4,000 × 400 × 150 mmLong rail machine travel
Batch size1 to 10,000+No minimum order quantity
Quote turnaround12 hoursIncludes free DFM analysis
Why GreatLight

What You Get With The Quote

Numbers, not adjectives.

15Y

Making Parts Since 2011

Three wholly-owned plants in Dongguan and Singapore, 7,600 m² of floor space and 150 technicians on the machines.

±0.005

Tolerance We Can Hold

Micron-level positioning is checked in process, so a passing sample still passes at unit 500.

16

Simultaneous 5-Axis Centers

Backed by 12 four-axis mills, 27 three-axis machines and 16 mill-turn centers.

12H

Quote And DFM Feedback

You get a price and a manufacturability note within 12 hours of sending the model.

24H

Production Start

Once the drawing is released, cutting can begin inside 24 hours.

3-5D

Typical Ship Window

Parts ship in 3-5 days. Historical late-delivery probability stays below 2%.

7,600 m²Manufacturing space
150Technicians
4ISO certifications held
100%Inspection before shipment
Industry Fit

What These Industries Demand

aluminum-alloy-industrial-control-chassis-sheet-metal-processing

Industrial Machinery

Chassis and mounting plates machined from 6061 and 6082, anodized before assembly.

  • ±0.005 mm
  • 4,000 mm travel
  • IATF 16949
large-die-cast-metal-part-back-19

Automotive And EV

Housings and brackets that must repeat across a production run, with conformity paperwork attached.

  • 99.99% yield
  • CoC on request
  • PPAP-supporting data
low volume manufacturing

Medical Devices

Stainless 316L and titanium components with documented cleanliness and traceable material.

  • Ra 0.8-1.6 μm
  • ISO 13485
  • 100% inspection
option-1-concise-seo-focused

Electronics And Robotics

Copper heat sinks, aluminum frames and brass fittings cut to tight position tolerance.

  • Copper C110
  • Ø400 mm rotary
  • 3-5 day ship
FAQs

Questions Engineers Ask Before Sending A Model

What file formats can you quote from?

STEP and IGES cover most jobs. We also read native SolidWorks, Siemens NX and Parasolid files, plus 2D PDF drawings for tolerances and finish callouts.

Send the 3D model and the drawing together. The model defines geometry; the drawing defines what we measure.

How do you decide between 3-axis and 5-axis for my part?

Count the directions the tool must approach from. If all machined features are reachable from two opposite faces, 3-axis is cheaper and faster.

Once you need angled holes, contoured surfaces or features on three or more faces, 5-axis removes the re-clamping and holds position better. The DFM note in your quote will say which route we recommend and why.

What is the smallest wall you can mill reliably?

It depends on material and part height more than on the wall number. A 1.5 mm aluminum wall at 20 mm tall is routine; the same wall at 80 mm tall will deflect unless we adjust clamping and take light finishing passes.

Tell us the wall thickness and overall height. If the geometry is risky, we will say so before cutting rather than after.

Do you charge for the DFM review?

No. Quotation and DFM analysis come back within 12 hours at no cost.

You get a price, a manufacturability note and any tolerance callouts we think need a second look.

Can you hold ±0.005 mm on a production batch, not just a sample?

Yes, on qualified features. Linear encoders and spindle load monitoring keep positioning stable across the run, and in-process CMM checks catch drift before the next unit is cut.

Some features cannot hold that band, for example thin unsupported walls or deep small bores. We flag those during DFM instead of promising a number we cannot measure.

What documentation ships with the parts?

Every batch is 100% inspected before shipment. Mill test reports and certificates of conformity are available on request, tied to the material lot.

Inspection reports for specific GD&T features can be included when your incoming inspection needs them.

Is there a minimum order quantity?

No minimum. We run from a single prototype to 10,000+ part runs on the same process.

Setup cost is spread across the batch, so unit price drops as quantity rises. The quote shows both so you can pick the break point.

How do you handle confidentiality?

Uploads are secure and confidential. An NDA is available on request before you send drawings.

We hold ISO 27001:2022 for information security, which covers how customer data is stored and accessed.

Send Your Model, Get A Milled Part Quote

One 3D file gets you a price, a DFM note and a ship window. No minimum order quantity.

12-hour quote100% inspectionNo MOQNDA on request

Trusted by engineers and manufacturers worldwide

Tesla Ford Motor Company BYD Auto Denso Magna International Boeing Airbus Medtronic KUKA FANUC