Prototype CNC Machining Services
Prototype CNC machining in metal and plastic with no MOQ: simple parts ship in 3 days, finished or 5-axis parts in 5–7 days. An engineer reviews every file before cutting.
CNC Prototype Machining for Metal and Plastic
Send a CAD file and get a functional metal or plastic prototype cut on a 3-axis, 4-axis, or 5-axis CNC machine. Most orders run 1-50 pieces, cut in the same alloy or resin the eventual production part will use.
This page covers machined validation parts. For a wider view of routes to a working part, see our rapid prototyping options; once the design is proven, Low Volume CNC Machining picks up short-run production. Our CNC machining guide explains the process.
Why Engineers Choose DEK
DEK cuts prototypes on the same floor, under the same quality system, that later runs production. You validate the design once, with one engineering team, and scale without switching vendors.
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01
20+ Years in Machining
Over 20 years in precision machining, with 1.2M+ parts machined annually for 2300+ global OEM clients across regulated and general industries.
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02
98.6%+ On-Time Delivery
A 98.6%+ on-time delivery rate means the lead time stated in your quote does not slip once your files are in review and on the schedule.
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03
Certified via TUV
ISO 9001, ISO 13485:2016 and AS9100D, issued via TUV, cover general precision work as well as regulated medical and aerospace programs.
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04
No MOQ, Any Quantity
Order a single validation part, a short pilot batch, or both, without a minimum order penalty: a single part is quoted on its own setup and machine time.
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05
Engineer-Reviewed Files
Rapid CNC machining runs through an engineering review before it hits the floor, so tolerance-critical prototypes are checked for machinability first.
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Production-Grade Materials
With 50+ metals and engineering plastics, the prototype is cut in the production alloy or resin, since mechanical and thermal behavior rarely transfers.
Prototype CNC Machining Capabilities
Every core process is available at prototype quantities, not reserved for production runs, from micro components to parts around 1000mm.
Core Processes at Prototype Quantity
Every process below runs at prototype quantities, so a single part gets the same equipment and inspection as a production run.
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CNC Milling (3–5 Axis)3-axis, 4-axis and 5-axis milling covers flat features through complex, undercut geometry, with 5-axis complex profiles holding ±0.01mm. -
CNC TurningCNC turning, including Swiss-type turning, produces shafts, pins and other rotational parts, with fit-critical shaft-bore pairs at ±0.005mm. -
Wire & Sinker EDMWire EDM and sinker EDM cut hardened materials and the small internal radii that milling cannot reach on a prototype part. -
Precision GrindingPrecision grinding finishes shafts and bores that need to fit correctly on the first test, so the prototype proves the real assembly. -
Gear MachiningGear machining at prototype quantity produces gearing that needs to mesh correctly on the first test, not after a second build. -
CMM InspectionEvery prototype order can include in-house CMM inspection and full dimensional traceability, with FAI reporting available on request.
50+ Metals and Engineering Plastics
Cut the prototype in the alloy or resin the production part will use, then add the finish it needs for testing.
Surface Finishes
Engineering Plastics
Need another alloy or resin? Ask our engineers about your material.
View AllQuality Built Into Every Prototype
The certifications and inspection that cover production apply to the same floor that machines your prototype, not a separate line held back for production work.
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Engineering Review & DFM
Our team checks manufacturability on every drawing and returns DFM feedback along with your quote, before any part hits the floor.
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CMM Inspection & FAI
In-house CMM inspection and full dimensional traceability on every prototype order, with an FAI report available on request.
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One Quality System
IQC, IPQC, FAI, OQC, SPC and CAPA run on prototypes exactly as on production, so validated parts need no requalification.
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No MOQ, Repeatable
Order one part or a pilot batch; programming, fixturing and inspection data carry forward into the next run of the same drawing.
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20+
Years in Precision Machining
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1.2M+
Parts Machined Annually
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98.6%
On-Time Delivery Rate
Certified Prototype Quality
ISO 9001, ISO 13485 and AS9100D, issued via TUV, cover the floor that cuts your prototype.
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AS9100DAerospace Quality Management System
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ISO 9001:2015Quality Management Standard
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ISO 13485Medical Devices Quality Management
Prototype Parts by Industry
Robotics, aerospace and medical teams run prototype-stage files through the same process, inspection and quality system.
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Prototype
Aluminum 6061 Sensor BracketRoboticsA robotics OEM bracket held ±0.005mm on its fit-critical bore and shipped in 4 days, milled and bead-blasted (Q1 2025).- 6061 Material
- ±0.005mm Tolerance
- 4 days Lead
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Prototype
Cabin Interior and Support PartsAerospaceAerospace work stays limited to non-flight-critical systems, cabin interiors and structural support parts, under AS9100D. -
Prototype
Medical Device PrototypesMedicalMedical device files run under ISO 13485:2016 on the same floor, with in-house CMM inspection and FAI reporting on request.
How to Get a Prototype Quote
Prototype CNC Machining FAQ
Can't find your answer? Our engineers review your drawing and requirements directly.
Ready to Scale Your Project?
Get started with a stable process and controlled quality. Let's discuss your project.
