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Housings and Enclosures
Review internal pockets, mounting faces and wall sections together. Identify the surfaces and openings that locate or support mating components.
CNC Milling Services for Custom Precision Parts
Custom CNC milling services for housings, plates and multi-face components, with tool access and critical features reviewed first.
- Machining routes matched to part geometry
- Critical holes and mating surfaces reviewed
- Finishing and inspection requirements coordinated
What to include
Request a CNC Milling Quote
Share your drawings, critical features and hole relationships for review.
- 3D model and dimensioned 2D drawing
- Critical features and datum references
- Hole positions and mating relationships
- Material, quantity and target date
Plan around the relationships that matter
Milled Parts and Critical Features
Pockets, holes and features on different sides decide how CNC milled parts are held, machined and inspected.
Plates and Mounting Components
Define hole patterns, locating features and reference faces. Mark the flatness and positional requirements that control assembly fit.
Deep Pockets and Internal Features
Specify pocket depth, internal radii and bottom features. Tool reach and chip removal may affect access, machining time and achievable surface quality.
Multi-Sided and Contoured Parts
Identify angled faces, contours and features on different sides. Their relationships help determine setup planning and whether additional axes are useful.
Review tool access and critical features before production.Request a CNC Milling Quote
Choose the setup around feature access
When 3-Axis or 5-Axis Milling Fits Your Part
The right setup depends on feature access and geometry; more axes do not automatically lower cost or tighten tolerances.
3-Axis CNC Milling
Suitable for many plates, brackets and housings with accessible faces, holes and pockets. Features on additional sides may require repositioning, with fixtures and datums planned around the critical relationships.
Review Focus:Accessible faces / Pocket depth / Repositioning / Datum control
5-Axis CNC Milling
5-axis milling for complex parts can improve access to angled features and contoured surfaces. Depending on the geometry, indexed or simultaneous machining may reduce repositioning or allow a more suitable tool orientation.
Review Focus:Angled features / Surface contours / Tool access / Setup reduction
For 5 axis CNC machining, the required motion and setup strategy are selected during technical review. Not every part requires simultaneous five-axis cutting or can be completed in one setup.
Review the cost drivers early
Design Choices That Affect Machining Cost
Review tool access, material removal, workholding and inspection early to simplify production without losing function.
Deep Pockets and Small Internal Radii
Deep, narrow pockets and small corner radii can require longer or smaller tools and additional passes. Where function allows, review larger radii and improved access.
Thin Walls and Unsupported Features
Thin sections may deflect during machining or move after material removal. Review wall geometry, support and machining sequence around the required final condition.
Features on Multiple Faces
Additional setups introduce workholding and alignment work. Identify which cross-face relationships are critical so the route can prioritize them.
Tolerances and Surface Requirements
Apply tight tolerances and fine roughness only where function requires them. Include datums and acceptance criteria so machining and inspection effort can be assessed accurately.
Design changes are proposed for review and require approval before the drawing is revised or production begins.
Review Your Part Before Production
Share your drawing, critical features and hole relationships to discuss machining access, setup planning and cost drivers.
Keep the requirements connected
Coordinated CNC Milling, Materials and Inspection
At STARWAY MFG GROUP, material, machining, finishing and inspection are reviewed together to keep critical features aligned.
Material Requirements Reviewed
Confirm the grade, condition and documentation needed for your part, including metal and engineering plastic options.
Machining Around Critical Features
Plan tool access, workholding and machining sequences around pockets, hole relationships and mating surfaces.
Finishes Matched to Function
Review the specified finish, masking needs and coating allowance to protect threads, bores and functional surfaces.
Inspection Linked to Your Drawing
Define checks for critical dimensions, hole positions and surface requirements, with reporting agreed for the project.
Review Your Material, Finish and Inspection Requirements
Send your drawing and final delivery requirements so we can review them together.
Documented project planning
A Complex CNC Milling Project
See how part geometry, setup planning and inspection requirements are brought together for a documented milling project.
Custom CNC Plastic Parts
Material: POM
Application: Electronic components
CNC Milling Rapid Prototype
Material: Aluminum
Application: Prototype validation
Automotive CNC Milling Parts
Material: Aluminum alloy
Application: Automotive components
Precision CNC Components
Material: Stainless steel
Application: Industrial equipment
STARWAY CNC Milling Processing
Learn more
Project review
Request a CNC Milling Quote
Share your drawings, critical features and hole relationships for review.
Frequently asked questions
CNC Milling Services FAQ
What types of parts are suitable for CNC milling?
CNC milling suits housings, plates, brackets and components with pockets, hole patterns, flat faces or contoured surfaces. Features on multiple sides can also be reviewed. Suitability depends on material, overall dimensions, tool access, workholding and the relationships between critical features.
When should I choose 3-axis or 5-axis CNC milling?
Three-axis milling suits many parts with accessible faces, holes and pockets. Five-axis milling may help with angled features, complex contours or restricted tool access. Indexed or simultaneous machining is selected around the geometry; additional axes do not automatically guarantee tighter tolerances or a single setup.
How do deep pockets, thin walls and small internal corners affect cost?
Deep pockets and small internal radii may require longer or smaller tools, additional passes and more machining time. Thin walls can need extra support and careful sequencing. Where function allows, changes to radii, wall geometry or access may simplify production. Any design change requires approval.
How should I specify tolerances and critical hole relationships?
Provide a dimensioned drawing showing critical sizes, datum references and geometric tolerances where required. Identify hole patterns, locating bores and mating faces that must relate to one another. Achievable tolerances are reviewed for the specific material, geometry, setup and final delivery condition.
What materials and finishes can be reviewed for CNC milled parts?
Options include aluminum, stainless steel, carbon and alloy steel, brass, copper and engineering plastics. Provide the exact grade and condition. Finishes such as anodizing, plating, blasting or coating are reviewed for compatibility. Mark functional surfaces and specify whether dimensions apply before or after finishing.
How are critical features on CNC milled parts inspected?
Inspection follows the approved drawing and agreed plan. Checks may cover hole positions, bore sizes, mating-face geometry, threads and roughness. Methods are selected for the features being measured. Specify first-article reports, dimensional records, sampling or any required 100% checks during quotation review.
Can you support prototypes and production batches, and what affects lead time?
Both prototypes and production batches can be reviewed. Lead time depends on drawing readiness, material availability, geometry, quantity, finishing and inspection. Provide the quantity required at each stage and your target date. The schedule, including any sample approval stage, is confirmed after technical review.
What files and information should I send for a CNC milling quote?
Send a STEP/STP or IGES/IGS model and a dimensioned PDF drawing where available. Include material, quantity, revision, critical features, hole relationships, finish and inspection requirements. Add mating-part references where they affect acceptance. If files are incomplete, identify what still needs clarification.
