CNC Machining Services for Custom Precision Parts
OEMach provides custom CNC machining services for drawing-defined metal and plastic parts. When a project can be made by milling, turning, 5-axis machining, micro CNC or Swiss machining, our engineering team reviews geometry, material, tolerances, finish and quantity before recommending a practical machining route.
Suitable Applications
CNC machining is a starting point for buyers who need custom precision parts but are not sure whether CNC milling, CNC turning, 5-axis machining, micro CNC machining or Swiss machining services should be used. It is commonly used for housings, brackets, shafts, bushings, fixture plates and custom components for robotics, medical devices and industrial assemblies.
Required Files
For a useful first review, send STEP or STP files with a 2D PDF drawing for critical tolerances, threads, surface finish, cosmetic surfaces, material grade and inspection needs. The RFQ Checklist helps organize the drawing package before quoting.
DFM Checkpoints
Our engineering review compares manufacturing route, tool access, datum scheme, tolerance stack-up, material stability, finish impact and inspection method. Material selection can be checked against aluminum, stainless steel and surface finishes before production.
Typical Parts & Use Cases
Common structural and precision parts manufactured with this machining method.
Housings & Brackets
Machined housings, covers, mounting brackets and support blocks with controlled datums and mounting faces.
Shafts & Bushings
Turned shafts, pins, bushings and sleeves with diameter, fit and concentricity requirements.
Fixture Plates
Custom fixture plates, inspection plates and tooling blocks with accurate hole patterns and flat reference surfaces.
Custom Precision Components
Mixed machined components that need route review across milling, turning, 5-axis, micro or Swiss machining.
Supported Grades & Post-Processing
CNC machined parts can be produced in aluminum, stainless steel, titanium, brass, copper and engineering plastics. Surface finishes are selected based on appearance, corrosion protection, wear resistance, fit and inspection requirements.
DFM & Sourcing Review Matrix
How our engineering team reviews your design requirements before launching fabrication.
| Review Area | Buyer Input | Engineering Check | Quote Output |
|---|---|---|---|
| CAD Geometry | STEP/STP model plus 2D drawing | Machining route, feature access, datums and setup count | Recommended CNC process route |
| Material Grade | Specified grade or equivalent options | Machinability, stability, stock availability and finish compatibility | Material and finish recommendation |
| Critical Features | Fits, holes, threads, flatness, profiles and cosmetic faces | Tolerance risk, tool access and inspection visibility | DFM notes and quote assumptions |
| Quantity & Lead Time | Prototype, pilot or small-batch quantity | Setup strategy, tooling load and repeatability | Lead-time basis and quantity notes |
| Inspection Requirement | CMM report, gauges, first article or material certificate | Measurement method and report scope | Inspection plan included in quote |
Applicable Industries
RFQ Checklist
- STEP or STP 3D model
- 2D drawing with critical tolerances and datums
- Material grade and finish requirements
- Quantity, target delivery and revision level
- Inspection report or certificate requirements
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Process FAQ
What is included in CNC machining services?
The service includes route review, DFM feedback, material and finish checks, CNC machining, inspection planning and export-ready delivery support for drawing-defined parts.
Which process should I choose?
If you are not sure, send the full CAD and drawing package. OEMach can compare milling, turning, 5-axis, micro CNC and Swiss machining based on geometry, tolerances and quantity.
Can one RFQ include several part types?
Yes. Mixed packages with housings, brackets, shafts, bushings and plates can be reviewed together, while each part receives the most suitable route.
What materials can be machined?
Common options include aluminum, stainless steel, titanium, brass, copper and engineering plastics. Final selection depends on strength, corrosion, weight, conductivity, wear and finish needs.
What should I send for a quote?
Send STEP/STP files, 2D drawings, material, quantity, finish and inspection requirements. A complete package reduces assumptions and speeds up review.
Send drawings for review
Send STEP/STP files, 2D drawings, material, quantity, finish and inspection requirements. OEMach will review the machining route, DFM risks and inspection plan before quoting.