01 / Housings and enclosures1
Machined Housings and Enclosures
Custom milled housings and enclosures can include pockets, bores, seal grooves and mounting interfaces defined by the customer drawing and CAD model.
6061 / 7075
DRAWING REVIEW AVAILABLE
Precision CNC Milling Services
Precision CNC milling for custom parts manufactured from your 2D drawings and 3D CAD files — one-off prototypes and low-volume batches in metals and engineering plastics, with requirements reviewed before quotation.
Manufactured in Dongguan, Guangdong, China. Every project is reviewed against your drawing requirements before quotation.
MOQ
1 part (prototype to low volume)
Files accepted
STEP, STP, DWG, DXF, PDF
Manufacturing location
Dongguan, Guangdong, China
CNC milling for custom parts manufactured from customer drawings.
Review before quote
Material, tolerance, finish, inspection
Materials
Metals and engineering plastics
Response time
Within one business day
DRAWING-BASED MANUFACTURING
CNC MILLING FOR CUSTOM PARTS
What Our CNC Milling Service Covers
CNC milling removes material from solid stock with rotating cutters, following the tool paths defined by your drawing and CAD model. It is commonly used for prismatic parts — parts with flat faces, pockets, bores and features on several sides. Every milling project starts from your engineering data:
Housings, plates and brackets
Block-shaped bodies with pockets, bores and fastener holes on multiple faces, manufactured to your drawing, including fit-critical features such as dowel holes and mounting interfaces.
Tooling, fixtures and workholding
Jigs, fixture plates and workholding components milled to the tolerances your process needs; datum features on the drawing are reviewed before quoting.
Replacement and retrofit parts
Manufactured from your drawing when the original part is no longer available; if the only starting point is a worn sample, the dimensions that define function are confirmed with you before production.
TYPICAL MILLED PARTS
Common CNC Milled Parts
Examples of parts milled from customer drawings and CAD files. Send your drawing for review even if your part type is not listed.
02 / Mounting plates and brackets2
Mounting Plates and Brackets
Mounting plates and structural brackets are milled from customer-supplied drawings, with hole locations, datum features and mating surfaces reviewed before quotation.
A2 / steel / 6061-T6
03 / Tooling, fixtures and workholding3
Tooling, Fixtures and Workholding
Jigs, fixture plates, locating blocks and workholding components are manufactured to the drawing requirements for tooling and industrial applications.
Per drawing
04 / Replacement and retrofit parts4
Replacement and Retrofit Parts
Replacement and retrofit components can be manufactured from an approved drawing when an original part or supplier is no longer available.
ENGINEERING MATERIALS
Materials We Mill
Material availability is confirmed for every order during the RFQ stage. We do not substitute one grade or condition for another without your written approval.
Aluminum alloys
6061-T6, 7075-T6 and 7075-T651, commonly reviewed for housings, plates, brackets and fixture bodies. See our custom CNC aluminum parts page for a material-focused overview.
Stainless steels
304, 304L, 316, 316L and 17-4 PH, reviewed where the drawing requires the specified corrosion performance and condition.
Engineering plastics
POM, PTFE, Nylon/PA and PEEK — reviewed with holding force and heat in mind, because plastics clamp and cut differently from metals.
FROM YOUR ENGINEERING DATA
Working From Your Drawings and CAD Files
Every milling quotation is based on your engineering data. Send the available 2D drawing and/or 3D CAD model — STEP, STP, DWG, DXF and PDF files are accepted. Where both are supplied, they should identify the same revision; if the drawing and the CAD model differ, we ask you to confirm which one gov
What to send
The available 2D drawing and/or 3D CAD model, material specification with grade and condition, and quantity — from a single prototype to a repeat low-volume batch.
Requirements to identify
Tolerances, critical dimensions, surface finish and any inspection or documentation requirements, identified before quotation.
Response time
Reviews are completed and we usually reply within one business day.
MILLING DESIGN REVIEW
Milling Design Points We Review Before Quoting
Milling cost and risk concentrate in geometry. Three milling-specific points are reviewed on every RFQ before quotation.
01 / Tool access and reach1
Tool Access and Reach
Every milled feature must be reachable by a cutter with room to enter and exit. Restricted access is flagged during the review, together with possible drawing-side alternatives.
Flagged at review
02 / Deep pockets and cavities2
Deep Pockets and Cavities
Cavity depth relative to cutter diameter affects rigidity, chip evacuation and finish on floors and walls; the surfaces that carry the functional requirement are confirmed at quotation.
Depth-to-width ratio
03 / Thin walls3
Thin Walls
Thin-wall sections can move during cutting and clamping. The review flags movement risk before quotation, so the functional minimum wall can be confirmed with you.
Movement risk
TOLERANCES & DATUMS
Tolerances and Datums on Milled Parts
The drawing governs. Our recommendation, applied to every RFQ we review: tolerance what the function needs and identify those features on the drawing as critical dimensions, so measurement effort concentrates on the dimensions that decide fit and performance.
Datums on prismatic parts
Prismatic parts are held and re-oriented as material is removed from multiple sides; identify which faces, bores or holes are your datums, and confirm them whenever a drawing revision changes.
Clarify before quoting
Ambiguous tolerances, or tolerances tighter than the function requires, are clarified before quotation so manufacturing follows confirmed requirements.
Verified at inspection
Finished parts are checked against the confirmed drawing — the practical question when comparing precision milling services is how tolerances are confirmed and verified, feature by feature.
SURFACE FINISHING
Surface Finishing for Milled Parts
Surface treatments can be coordinated according to project requirements. Feasibility is confirmed per project at quotation.
01 / Anodizing and coatings1
Anodizing and coatings
Anodizing, hard anodizing, painting and powder coating, with masking requirements identified on the drawing.
Masking on drawing
02 / Blasting and polishing2
Blasting and polishing
Bead blasting and polishing for surface texture and cosmetic requirements.
Texture and cosmetics
03 / Marking and other processes3
Marking and other processes
Passivation, electropolishing, laser marking and black oxide, with heat treatment coordinated where the drawing requires it.
Coordinated per order
QUALITY & INSPECTION
Inspection and Documentation for Milled Parts
Finished parts are checked against the confirmed drawing and project requirements, with basic dimensional verification using calipers, micrometers, depth gauges and height gauges. Inspection scope and documentation requirements are reviewed during quotation: requested photographs, recorded dimension
Dimensional verification
Critical dimensions checked with calipers, micrometers, depth gauges and height gauges.
Agreed scope
Inspection covers the dimensions and requirements agreed in the quotation scope.
Documentation on request
Photographs, recorded dimensions and documentation formats are agreed during RFQ.
PROTOTYPES TO LOW-VOLUME BATCHES
CNC Milling Prototypes and Low-Volume Batches
MOQ is 1 part. A single milled prototype can be used for assembly checks and engineering review before a low-volume batch is released. Design iterations approved during validation are incorporated into an updated drawing and CAD model before repeat production, and each order is reviewed against the
One-off prototypes
Single parts for assembly checks and engineering review, manufactured to the approved drawing revision.
Design iterations
Changes approved during validation are incorporated into an updated drawing revision before repeat production.
Repeat low-volume batches
Repeat orders are re-quoted against the current drawing revision, quantity, material and inspection requirements.
HOW TO REQUEST A CNC MILLING QUOTE
How to Request a CNC Milling Quote
From your first drawing to shipped parts, each stage is confirmed before the next begins.
01 / Send drawings1
Send drawings
Send the available 2D drawing and/or 3D CAD files with material, quantity, tolerances, finish and inspection requirements.
STEP / DWG / PDF
02 / Drawing review2
Drawing and manufacturability review
We check file consistency, material availability, tool access, workholding and tolerances, and flag any risks before quoting.
Per RFQ
03 / Quotation3
Quotation
You receive a quotation with the confirmed requirements in writing.
In writing
04 / Manufacturing4
Manufacturing and finishing
Parts are milled and finished to the confirmed files.
Per confirmed files
05 / Inspection5
Inspection
Parts are checked to the agreed scope before shipment.
Agreed scope
06 / Packaging and shipment6
Packaging and shipment
Parts are packaged and shipped; documentation agreed for the order is provided as agreed.
Per order
CNC MILLING FAQ
Precision CNC Milling Services — FAQ
Answers to the questions engineers and buyers ask most often before requesting a CNC milling quote.
Have a different question about a milled part? Send your drawing and project details — we usually reply within one business day.