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CAD Design
Review drawing revision, geometry and critical features.
Custom CNC Machining Services for Metal and Plastic Parts
Milling, turning, grinding and secondary operations, coordinated around your part geometry, material and critical fits.
- A machining route matched to your part
- Critical features and inspection requirements aligned
- Finishing and delivery requirements coordinated
Request a CNC Machining Quote
Share your drawings, material and critical requirements for project review.
Geometry-led process selection
Explore CNC Machining Capabilities
At STARWAY MFG GROUP, we review your part geometry, material and critical features before selecting a machining route. Our team coordinates CNC milling, turning, grinding and secondary operations so you receive consistent parts, inspection evidence and a clear path from prototype to production.
Request a CNC Machining QuoteFrom drawing to delivery
Machined Parts for Your Project Stage
At STARWAY MFG GROUP, we review your part geometry, material and critical features before selecting a machining route. Our team coordinates CNC milling, turning, grinding and secondary operations around your drawing and delivery requirements. For prototypes, the review focuses on manufacturability and the features needed to evaluate fit and function. For production orders, it also considers repeatability, inspection checkpoints and finishing requirements. Share your current drawings, quantities and target schedule so we can discuss a practical route from initial samples to repeat orders, with inspection records defined for your project.
CAM Programming
Plan setups, tooling, workholding and machining sequence.
CNC Machining
Machine the agreed features with controlled process parameters.
Surface Finishing
Apply the specified finish while protecting critical surfaces.
Assembly
Complete agreed assembly and mating-part checks.
Quality Inspection
Verify dimensions, roughness, finish and records.
Final Delivery
Protect, pack and release documented parts for shipment.
Match the route to the part
Choose Milling, Turning or Grinding
Start with part geometry, size, quantity and critical features; some parts need more than one operation.
CNC Milling
For housings, pockets, flat faces and multi-sided features. Review hole locations, tool access and the relationship between critical surfaces.
Explore CNC Milling →
CNC Turning
For shafts, sleeves, bores and threaded parts. Review stepped diameters, thread details and alignment between features sharing a common axis.
Explore CNC Turning →
CNC Grinding Service
For critical flat or cylindrical mating surfaces. Review final dimensions, geometric tolerances, surface roughness and material condition.
Explore CNC Grinding →
General Machining Operations
For features requiring additional operations, such as gear cutting or wire EDM. Review the feature geometry and its relationship to other machined surfaces.
Explore General Machining →Not Sure Which Process Your Part Needs?
Send your drawing with the material, quantity and critical features. Our team can review the machining route with you.
Project-ready specifications
Materials, Critical Features and Finishes
Specify material grade, function and final delivery condition together—they shape machining, finishing and inspection.
| Material Group | Examples for Project Review |
|---|---|
| Aluminum | 6061, 6082, 7075 |
| Stainless Steel | 304, 316/316L, 17-4PH |
| Carbon and Alloy Steel | Grade 45 steel, 42CrMo |
| Brass and Copper | Specify the required alloy designation |
| Engineering Plastics | POM, ABS, PA, PEEK |
Material availability and suitability are confirmed during quotation review. Alternative grades require approval before use.
Identify the Features That Control Fit
Mark critical bores, shaft diameters, hole positions, threads and mating faces. Include datums, geometric tolerances and surface roughness where required. Precision CNC machining requirements should be assigned to the relevant features rather than applied as one tolerance to the entire part.
Coordinate Material Condition and Machining
State the exact grade, temper, hardness or supplied condition. Identify any heat treatment, certification or traceability requirements that affect machining and final acceptance.
Customized CNC Machining Parts Exhibition
Define the Final Surface Condition
Specify the required finish and identify surfaces that need masking or protection. Anodizing, plating, black oxide, blasting, painting and powder coating must be reviewed for compatibility with the selected material and functional surfaces.
Regularly Used CNC Machining Parts Surface Treatment
Anodizing
Bead Blasting
Black Oxide
Electro Plating
Painting
Powder Coating
Final fit: Confirm whether critical dimensions and roughness requirements apply before or after finishing. Coating thickness and heat treatment may affect final fit.
Inspection planned with the part
What Your Inspection Plan Covers
Plan CNC machining with inspection around the features that matter, with acceptance criteria and records agreed before production.
- Review the DrawingConfirm revision, datums and critical requirements.
- Agree Acceptance CriteriaDefine methods, values, reports and sampling.
- Inspect Critical FeaturesComplete first-article, in-process and final checks.
- Release the RecordsVerify traceability, documentation and delivery status.
Critical Dimensions and Fits
Features, tolerances and inspection methods.
Surface Roughness
Required surfaces, values and measurement method.
Documentation
Report format, material records and traceability scope.
Inspection Coverage
Sampling frequency or specified 100% checks.
Project-specific inspection: Inspection scope and documentation are project-specific. Identify any first-article report, full dimensional report or special testing requirement during quotation.
A documented route
A Machined-Part Delivery Example
Follow a documented part from drawing review through machining, finishing and final inspection.
Drawing and Requirement Review
Machining and Finishing
Critical Feature Inspection
Documented Final Delivery
Discuss the Requirements Behind Your Part
Share your drawing and critical features to review machining, finishing and inspection together.
STARWAY CNC Machining Processing
Learn more
Frequently asked questions
Custom CNC Machining FAQ
How do I choose between CNC milling, turning and grinding?
Milling generally suits pockets, flat faces and features on multiple sides. Turning suits shafts, sleeves and other rotational features. Grinding may be needed for specified mating surfaces, final dimensions or roughness. Share your drawing, overall dimensions, material and quantity so the required combination of operations can be reviewed.
What metal and plastic materials can STARWAY review for CNC machining?
We review aluminum, stainless steel, carbon and alloy steel, brass, copper and engineering plastics such as POM, ABS, PA and PEEK. Specify the exact grade, condition and any documentation requirements. Material availability and suitability are confirmed during quotation; substitutions require approval.
What tolerances can you achieve on custom machined parts?
Achievable tolerances depend on the feature, material, dimensions, geometry and manufacturing sequence. Mark critical fits, datums, geometric tolerances and roughness on the drawing. We review these requirements individually and confirm the machining and inspection approach before accepting the order.
Can you support both prototypes and production orders?
Yes. Prototype and production CNC machining can be reviewed for functional samples, pilot batches and repeat orders. Provide the quantity needed at each stage and identify the features used for evaluation. Drawing revisions, sample approval requirements and production inspection needs should be agreed before scaling.
What surface finishes are available for CNC machined parts?
Options for review include anodizing, blasting, plating, black oxide, painting and powder coating, depending on the material and application. Specify the finish, cosmetic areas and surfaces requiring protection. Confirm whether dimensions and roughness apply before or after finishing, particularly for threads and precision fits.
How are CNC machined parts inspected?
Inspection is planned against the approved drawing and agreed acceptance criteria. It may include first-article checks, in-process measurements and final verification of critical dimensions, roughness and finish. Specify report formats, traceability and any sampling or 100% inspection requirements during quotation review.
How long does a CNC machining order take?
Lead time depends on drawing readiness, material availability, part complexity, quantity, finishing and inspection requirements. Provide your target delivery date when requesting a quote. The production schedule and any sample approval stages are confirmed after technical review; shipping time should be considered separately.
What should I send for a CNC machining quote?
Send a 3D model and dimensioned 2D drawing where available, together with material grade, quantity and drawing revision. Identify critical tolerances, threads, surface roughness, finishing and inspection requirements. Include your target delivery date and mating-part information where it affects fit or acceptance.
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