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Custom Online
3D Printing Services

On-demand CNC machining service for rapid prototyping and production parts, through a network of specialized, experienced and thoroughly vetted local and global CNC machine shops.
Get instant pricing, project lead times, and DFM feedback.

STEP | STP | SLDPRT | STL | DXF | IPT | X_T | X_B | 3DXML | CATPART | PRT | SAT | 3MF |
JT files

 Our Instant Quoting Engine is covered by U.S. Pat. Nos. 11,086,292,
11,347,201, 11,693,388, 11,698,623, 12,099,341, and 12,189,361. Other
patents pending.

What is 3D Printing?
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Our 3D Printing Services
SLA

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HP MJF

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SLS​

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SLM

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Why Use Us for Custom Online 3D Printing Services?
provides a custom online CNC machining service to engineers, product developers, designers, and more through our vetted network of 10,000+ suppliers. Our highly qualified and certified machine shops can make any custom design, simple or complex. We offer rapid machining, small-batch machining, and high-volume production, with all orders serviced by from end to end. Upload a CAD file to the Instant Quoting Engine® to get a price, lead time, and design-for-manufacturability feedback on your custom CNC parts. Our fast CNC machining capabilities include services for metals and plastics and flexible production and shipping options to meet you at the perfect price and product development stage. Your price for CNC-machined prototypes includes tariffs and shipping for standard parcels. assures the quality of your machined parts with our ISO 9001:2015, ISO 13485, IATF 16949:2016, and AS9100D certified quality management system, ITAR registration, and options to add inspections, hardware traceability, material certifications, and CoCs. We accept technical drawings and have support teams to ensure you get quality CNC-machined parts on time.

Our Strength

Delivering precision, speed, and reliability is at the core of OD Precision. With advanced facilities, skilled teams, and global reach, we power innovation across industries.

A large-scale facility

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A skilled team of engineers
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Employees

Cutting-edge CNC and inspection equipment
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Advanced Machines

Trusted by global businesses
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 Countries Served

CNC machining materials

We can generate instant machining quotes for 50+ metals and plastics.

Metals

Aluminum

Aluminum alloys offer an excellent strength-to-weight ratio, high thermal and electrical conductivity, low density, and natural corrosion resistance. They are lightweight, versatile, and can be anodized for improved surface durability.

Alloys

Aluminum 7075-T7351 | 3.4365 | 76528 | AlZn5.5MgCu Aluminum 7075-T651 | 3.4365 | 76528 | AlZn5.5MgCu Aluminum 6061-T651 | 3.3211 | 65028 | AlMg1SiCu Aluminum 6082-T651 | 3.2315 | 64430 | AlSi1MgMn

Stainless Steel

Stainless steels provide high corrosion resistance, good mechanical strength, excellent toughness, and stability in demanding environments. Ideal for food-grade, medical, and structural applications.

Alloys

Stainless Steel 304 | 1.4301 | X5CrNi18-10 Stainless Steel 316 | 1.4401 | X5CrNiMo17-12-2 Stainless Steel 316L | 1.4404 | X2CrNiMo17-12-2 Stainless Steel 303 | 1.4305 | X10CrNiS18-9 Stainless Steel 17-4 PH | 1.4542 | X5CrNiCuNb16-4

Mild Steel

Mild steels offer excellent machinability, weldability, and cost-effectiveness. They provide good strength and ductility, making them suitable for general structural and mechanical applications.

Alloys

Mild Steel 1018 | 1.0301 | C15 Mild Steel 1020 | 1.0402 | C22 Mild Steel 1045 | 1.1191 | C45 Mild Steel A36 | – | Structural Carbon Steel Mild Steel S235JR | 1.0038 | Fe360B

Brass

Brass alloys provide excellent machinability, natural corrosion resistance, good electrical conductivity, and a visually appealing gold-like finish. Widely used for fittings, valves, gears, and decorative components.

Alloys

Brass C3604 | C36000 | Free-Cutting Brass Brass C2600 | C26000 | Cartridge Brass Brass C2680 | C26800 | Yellow Brass Brass CZ121 | CW614N | Free-Cutting Brass Brass CZ108 | CW508L | Alpha Brass

Copper

Copper offers unmatched electrical and thermal conductivity, excellent corrosion resistance, and stable mechanical performance. Ideal for electronics, heat exchangers, and electrical components.

Alloys

Copper C101 | CW004A | Oxygen-Free Copper Copper C102 | CW008A | OFHC Copper Copper C110 | CW009A | Electrolytic Tough Pitch Copper C103 | – | Oxygen-Free High Conductivity Beryllium Copper C17200 | 2.1247 | CuBe2

Alloy Steels

Alloy steels provide high strength, toughness, hardness, and wear resistance due to alloying elements such as chromium, molybdenum, and nickel. Excellent for high-stress and load-bearing applications.

Alloys

Alloy Steel 4140 | 1.7225 | 42CrMo4 Alloy Steel 4130 | 1.7218 | 25CrMo4 Alloy Steel 4340 | 1.6511 | 36CrNiMo4 Alloy Steel 5140 | 1.7035 | 41Cr4 Alloy Steel 8620 | 1.6523 | 21NiCrMo2

Tool Steel

Tool steels offer exceptional hardness, strength, wear resistance, and heat resistance perfect for cutting tools, dies, molds, and industrial tooling.

Alloys

Tool Steel D2 | 1.2379 | X153CrMoV12 Tool Steel O1 | 1.2510 | 100MnCrW4 Tool Steel A2 | 1.2363 | X100CrMoV5 Tool Steel H13 | 1.2344 | X40CrMoV5-1 Tool Steel SKD11 | – | Cold Work Die Steel

Titanium

Titanium alloys combine high strength, low density, excellent corrosion resistance, and biocompatibility ideal for aerospace, medical, and high-performance engineering.

Alloys

Titanium Grade 2 | 3.7035 | Pure Titanium Titanium Grade 5 | 3.7165 | Ti-6Al-4V Titanium TA1 | – | Commercially Pure Titanium TA2 | – | Commercially Pure Titanium TC4 | – | Ti-6Al-4V Equivalent

Inconel

Inconel is a nickel-chromium superalloy engineered to withstand extreme heat, corrosion, and mechanical stress. It is perfect for aerospace turbines, chemical processing, and high-temperature industrial uses.

Alloys

Inconel 718 | 2.4668 | NiCr19FeNbMo Inconel 625 | 2.4856 | NiCr22Mo9Nb Inconel 600 | 2.4816 | NiCr15Fe Inconel 601 | 2.4851 | NiCr23Fe Inconel X-750 | 2.4669 | NiCr15FeTiAl

Invar 36

Invar 36 alloys have good strength-to-weight ratio, high thermal and electrical conductivity, low density and natural corrosion resistance. Can be anodized.

Alloys

Aluminum 7075-T7351 | 3.4365 | 76528 | AlZn5.5MgCu Aluminum 7075-T7351 | 3.4365 | 76528 | AlZn5.5MgCu Aluminum 6061-T651 | 3.3211 | 65028 | AlMg1SiCu Aluminum 7075-T651 | 3.4365 | 76528 | AlZn5.5MgCu Aluminum 6082-T651 | 3.2315 | 64430 | AlSi1MgMn

Plastics

POM (Delrin / Acetal)

POM is a strong, low-friction engineering plastic known for its excellent dimensional stability, stiffness, and smooth sliding performance. Commonly used for gears, bearings, rollers, and precision mechanical components requiring repeatable accuracy.

Alloys

POM-C | Acetal Copolymer POM-H | Acetal Homopolymer POM (100AF) | PTFE-filled Acetal POM Black | Standard POM White | Standard

Nylon

Nylon (Polyamide) offers high toughness, wear resistance, and excellent performance under continuous friction. It is widely used for bushings, rollers, gears, guides, and structural moving components. Nylon (Polyamide) offers high toughness, wear resistance, and excellent performance under continuous friction. It is widely used for bushings, rollers, gears, guides, and structural moving components.

Alloys

PA6 | Polyamide 6 PA66 | Polyamide 66 PA6 + GF15 | Glass-Filled 15% PA6 + GF30 | Glass-Filled 30% PA66 Natural | Unfilled

PPSU

PPSU provides exceptional heat resistance, hydrolysis resistance, and impact strength. It performs reliably in medical, food-grade, and high-temperature environments where continuous sterilization or steam exposure is required.

Alloys

PPSU Natural PPSU Black PPSU Radel R-5000 PPSU Radel R-5500

ABS

ABS is a tough, lightweight, and impact-resistant plastic used for housings, enclosures, automotive interiors, and functional prototypes. It machines cleanly and provides a smooth surface finish.

Alloys

ABS Natural (Beige) ABS Black ABS Antistatic ABS+PC Black ABS+PC White

PEEK

PEEK is a high-performance thermoplastic offering exceptional strength, chemical resistance, and high-temperature stability. Frequently used in aerospace, medical implants, semiconductor equipment, and precision mechanical systems.

Alloys

PEEK Natural (Beige) PEEK Black PEEK GF30 | 30% Glass-Filled PEEK CF30 | 30% Carbon Fiber Filled PEEK Medical Grade

PTFE (Teflon)

PTFE is a self-lubricating, chemically inert, non-stick plastic with extremely low friction and excellent temperature resistance. Ideal for seals, bushings, gaskets, insulation parts, and anti-friction components.

Alloys

PTFE Filled Glass PTFE Filled Carbon PTFE Filled Bronze PTFE Modified (Enhanced Creep Resistance)

Polycarbonate (PC)

Polycarbonate is a tough, impact-resistant engineering plastic with excellent clarity and high dimensional stability. Common for protective covers, lighting components, shields, and durable housings.

Alloys

PC Transparent PC Black PC White PC Yellowish White PC+GF30 | 30% Glass-Filled

Polyethylene (PE)

Polyethylene is a durable, lightweight, and abrasion-resistant plastic commonly used for wear components, guides, bumpers, fluid containers, and industrial linings.

Alloys

HDPE | High-Density Polyethylene LDPE | Low-Density Polyethylene UHMW-PE | Ultra-High Molecular Weight PE PE Black PE White

PVC

PVC is a durable, chemically resistant, and flame-retardant thermoplastic widely used for fluid-handling components, electrical insulation, industrial housings, and structural prototypes. It machines cleanly and maintains excellent dimensional stability.

Alloys

Grades PVC Black PVC Grey PVC White Rigid PVC (RPVC) PVC-U | Unplasticized PVC

PMMA (Acrylic)

PMMA is a lightweight, optically clear plastic offering excellent weather resistance and a glass-like appearance. It is ideal for light covers, displays, signage, lenses, and cosmetic-grade prototypes.

Alloys

PMMA Transparent PMMA White PMMA Black Cast Acrylic Extruded Acrylic

PET

PET is a strong, low-moisture-absorption material with excellent wear resistance and dimensional stability. It is used for gears, mechanical parts, food-safe components, and precision industrial applications.

Alloys

PET Black PET White PET-GF30 | 30% Glass-Filled Black PET-GF30 | 30% Glass-Filled White PET Clear (Bottle-Grade)

Polypropylene (PP)

PP is a tough, fatigue-resistant, and lightweight plastic with excellent chemical and temperature resistance. It is popular for automotive components, housings, containers, and industrial parts.

Alloys

PP Black PP White PP-GF30 | 30% Glass-Filled PP-H | Homopolymer PP-C | Copolymer

G-10

G-10 is a high-strength fiberglass laminate known for its rigidity, machinability, and moisture resistance. Common in electrical insulation, mechanical spacers, jigs, and high-strength structural plates.

Alloys

G-10 Standard G-10 FR (Flame Retardant) G-10 Black G-10 Natural Green G-10 Epoxy Glass Sheet

FR4

FR4 is a flame-resistant fiberglass epoxy composite used extensively for electrical insulation, PCB substrates, tooling plates, and heat-resistant structural parts.

Alloys

FR4 Yellow FR4 Green FR4 Glass-Epoxy Sheet FR4 PCB Grade FR4 Flame-Retardant Standard

PEI (Ultem)

PEI is a high-performance thermoplastic offering outstanding heat resistance, strength, dimensional stability, and chemical resistance. Used in aerospace, medical, semiconductor, and engineering applications requiring premium performance.

Alloys

Grades PEI Ultem 1000 (Unfilled) PEI Ultem 2300 (30% Glass-Filled) PEI Natural PEI Black PEI Medical Grade

CNC machining surface finishes

We can instantly quote a wide variety of post-machining surface finishes.

As machined

(Ra 3.2μm / Ra 126μin)

Smooth machining

(Ra 1.6μm / Ra 63μin)

Fine machining

(Ra 0.8μm / Ra 32μin)

Polishing

(Ra 0.8μm / Ra 32μin)

Brushed

(Ra 1.2μm / Ra 47μin)

Capabilities for 3D Printing

Feature
Description
General Tolerances
Metals: Conforming to ISO 2768-m standards;
Plastics: Conforming to ISO 2768-c standards.
Precision Tolerances

ApexRapid can manufacture and inspect parts to your exact specifications, including Geometric Dimensioning and Tolerancing (GD&T) requirements. We are capable of achieving tolerances as tight as +/- 0.001 inches.

Minimum Wall Thickness

0.5mm – enabling intricate designs and lightweight structures without compromising strength.

Minimum End Mill Size

0.5mm – perfect for producing fine details in complex geometries.

Maximum Part Size
CNC Milling: Up to 4000×1500×600 mm;
CNC Turning: Up to 200×500 mm
Minimum Part Size
CNC Milling: As small as 5×5×5 mm;
CNC Turning: Down to 2×2 mm
Production Volume
Prototyping: 1-100 pcs;
Low volume: 101-10,000 pcs;
High volume: Above 10,001 pcs.

Gallery of CNC machined parts

Here’s a small selection of the CNC machined prototypes and end-use parts we’ve produced for our customers.

Design Guidelines For CNC Machining

Feature
Description
Internal corner fillets

Design internal corner fillets to be 0.020” – 0.050” greater than a standard drill size for the radii. Follow a drill diameter to depth ratio of 1:6 (1:4 recommended) as a guideline for internal corner radii.

Floor fillets

Design floor fillets smaller than corner fillets to allow the same tool to clear material from the interior.

Undercuts

Always design undercuts to standard sizes and away from corners so they are accessible by the cutting tool.

Tapped/threaded hole depth

Provide tool clearance slightly beyond the tapped hole depth to ensure complete threads.

Complexity

Keep the number of small cuts to a minimum to reduce the CNC machining service cost; only design in the necessary features to balance function with aesthetic.

Prototyping

Rapid Tooling

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Production

Production Tooling

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Quality Inspection Process

Thorough evaluation of every raw material guarantees authenticity and a product qualification rate above 99%.

At OD Precision, quality isn’t just a step, it’s the backbone of our production. Every phase is engineered with accuracy, discipline, and uncompromising precision.

Incoming Material Check: Validate material certifications (composition, hardness). Examine raw dimensions and surface integrity.

In-Process Inspection: Track critical dimensions with calibrated tools (micrometers, CMM). Confirm tool condition and machine accuracy.

First-Article Inspection (FAI): Perform complete dimensional and geometric tolerance checks per drawing. Log results in a formal FAI report.

Final Inspection: Conduct 100% visual reviews for surface issues (burrs, scratches). Sample-test features (threads, bores) with gauges or CMM.

Documentation & Release: Attach full QC records and certifications. Only approve parts aligned with ISO 9001, ISO 13485, and IATF 16949 compliance.

Pros of 3D Printing
High Accuracy & Detail → Produces fine features and smooth surface finishes.Isotropic Mechanical Strength → Parts are strong in all directions (X, Y, Z).Scalable → Excellent for medium-to-large volume production runs.Material Efficiency → Unfused powder can often be recycled, reducing waste.Complex Geometries → No need for support structures, enabling intricate designs.

Proven by the World’s Toughest Industries

From aerospace to automotive, our manufacturing expertise is trusted by some of the world’s most demanding industries. We’ve built long-term partnerships by consistently delivering quality, precision, and efficiency on time, every time. That’s why leading companies return to us again and again. That’s why global leaders continue to rely on us for every critical project.

Manufacture Through Latest Technology

01. 5 axis

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Frequently Asked Questions

Explore our frequently asked questions to understand
more about CNC machining services and how we can
help you achieve your project goals.

Frequently Asked Questions

Industry

  • What are the advantages and disadvantages of CNC Machining?

    CNC machining offers benefits such as high precision and repeatability, reduced labor costs, and the ability to produce complex geometries. However, initial setup costs can be high, and material waste during machining may increase production costs. 

  • What tolerances can be achieved with CNC machining?

    CNC machining offers benefits such as high precision and repeatability, reduced labor costs, and the ability to produce complex geometries. However, initial setup costs can be high, and material waste during machining may increase production costs. 

  • How long does it take to receive the parts after placing an order?

    CNC machining offers benefits such as high precision and repeatability, reduced labor costs, and the ability to produce complex geometries. However, initial setup costs can be high, and material waste during machining may increase production costs. 

  • How much do CNC machining services cost?

    CNC machining offers benefits such as high precision and repeatability, reduced labor costs, and the ability to produce complex geometries. However, initial setup costs can be high, and material waste during machining may increase production costs. 

  • What are the applications of CNC machining?

    CNC machining offers benefits such as high precision and repeatability, reduced labor costs, and the ability to produce complex geometries. However, initial setup costs can be high, and material waste during machining may increase production costs. 

  • Can you handle custom projects with specific requirements?

    CNC machining offers benefits such as high precision and repeatability, reduced labor costs, and the ability to produce complex geometries. However, initial setup costs can be high, and material waste during machining may increase production costs. 

How to work with US?

Upload a CAD File

Share your XT file & CAD drawings or part designs with us. Our engineers will carefully review your files to understand dimensions, tolerances, ensuring everything is ready for accurate production.

Get Quote 12 Hours

We’ll provide a detailed quote along with a free DFM (Design for Manufacturing) analysis. This helps optimize your design and guarantee high-quality results before moving to production.

Start Production

Once you approve the quote, our expert machinists and technicians start manufacturing your parts using advanced CNC equipment and strict quality control for precision and reliability.

Parts are Shipped!

After inspection and finishing, your custom parts are securely packaged and shipped straight to your doorstep, delivered on time and ready for use, no matter where you are.

Start Custom Parts Manufacturing

OD Precision is your trusted partner for high-quality prototypes and production-ready machined parts, no matter how simple or complex. Backed by ISO 9001 certification and years of expertise, we guarantee accuracy, consistency, and reliability in every project.

Full-scale production manufacturing  

Get complete program management from our team of experts to optimize cost, quantity, and quality control of production orders for end-use parts. Find out about manufacturing higher volumes at reduced part costs, our commitment to quality and expanded capabilities to support with scaling to production.  

End To End Solutions

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Our other manufacturing capabilities

Prototypes and production tooling
Laser cutting, bending, post- processing
FDM, SLA, SLS, MJF

Get In Touch With Us!​

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