Get instant quote

CNC Machining Service Carlsbad, CA

We manufacture high-quality, competitively priced custom prototypes & production parts. Upload a CAD file for an instant CNC machining quote. Order parts in 5 minutes from your desk.

Get an instant CNC quote All uploads are secure and confidential
Over 6 million parts delivered to 35,000+ companies
Logo amazon_robotics
Logo intel
Logo merck
Logo mit
Logo nasa
Logo nissan
Logo suez

Online CNC machining in Carlsbad, CA

Hubs uses state-of-the-art technology to bring custom CNC machining online. We work with a large network of manufacturing partners that together have over 1,600 milling and turning machines, which means we always have capacity and very competitive prices. It also means we can produce both complex prototypes and low-volume production runs of precision machined parts, in a broad range of metals and plastics and with many surfaces finishes too. It’s like having an entire supply chain team for free.

Get an instant CNC machining quote

We machine rapid prototypes and low-volume production orders for customers in multiple industries: aerospace, automotive, defense, electronics, hardware startups, industrial automation, machinery, manufacturing, medical devices, oil & gas and robotics.

Faster parts through local sourcing

Get your parts CNC machined in 5 days.

Example image of a part produced with 5 day lead time option

CNC machining materials

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

Metals
Aluminum
Aluminum
Stainless steel
Stainless steel
Mild steel
Mild steel
Brass
Brass
Copper
Copper
Alloy steel
Alloy steel
Tool steel
Tool steel
Titanium
Titanium
Inconel
Inconel
Invar
Invar
Custom aluminum CNC part
Aluminum
Aluminum alloys have good strength-to-weight ratio, high thermal and electrical conductivity, low density and natural corrosion resistance. Can be anodized.

Alloys

Aluminum 6060 | AlMgSi Aluminum 5052 | AlMg2,5 Aluminum 2017 | AlCu4MgSi Aluminum 2014 | AlCu4SiMg Aluminum 6063 | AlMg0,7Si Aluminum 7050 | AlZn6CuMgZr Aluminum 2024-T351 | 3.1355 | AlCu4Mg1 Aluminum MIC6 Aluminum 7075-T6 | AlZn5,5MgCu Aluminum 5083-H111 | 3.3547 | AlMg4.5Mn0.7 Aluminum 6082 | AlSi1MgMn Aluminum 6061-T6 | AlMg1SiCu See all alloys


Learn more
Stainless steel part
Stainless steel
Stainless steel alloys have high strength, ductility, wear and corrosion resistance. They can be easily welded, machined and polished.

Alloys

Stainless steel 416 Stainless steel 15-5 Stainless steel 301 Stainless steel 430 Stainless steel 440C | 1.4125 | X105CrMo17 Stainless steel 420 Stainless steel 304/304L | 1.4301 | X5CrNi18-10 Stainless steel 2205 Duplex Stainless steel 17-4PH Stainless steel 303 | 1.4305 | X8CrNiS18-9 Stainless steel 316/316L | 1.4404 | X2CrNiMo17-12-2 See all alloys


Learn more
e973a727-aff9-4d14-9c80-01034d34d477_14_Mild_steel_As_machined.jpg
Mild steel
Mild steels are low-carbon metal alloys offering good mechanical properties, machinability and weldability at low cost. Can be carburized to increased hardness.

Alloys

Steel S235JR | 1.0038 Carbon steel EN8/C45 | 1.0503 | Fe Steel S355J2 | 1.0570 Mild steel 1045 Mild steel A36 Mild steel 1018 See all alloys


Learn more
08c77dfb-01f8-4562-a82d-7c13dce5c52b_19_Brass_As_machined.jpg
Brass
Brass is a metal alloy with good machinability and excellent electrical conductivity. Ideal for applications that require low friction.

Alloys

Brass C360


Learn more
027e271f-e0da-43d7-af64-9dc6e9ddddc6_01_Copper_As_machined.jpg
Copper
Copper offers excellent thermal and electrical conductivity, it's often used for busbars, wire connectors, and other electrical applications. Copper has a glossy reddish-orange appearance.

Alloys

Copper C101 Copper C110


Learn more
ff479c69-d36f-49dc-bae4-3a76fbb0508c_24_Alloy_steel_As_machined.jpg
Alloy steel
Alloy steels contain other alloying elements in addition to carbon, resulting in improved hardness, toughness, fatigue and wear resistance.

Alloys

Alloy steel 1.7225 | 42CrMo4 Alloy steel 1.7131 | 16MnCr5 Alloy steel 1215 Alloy steel 4340 Alloy steel 4140 See all alloys


Learn more
6c27555f-0b92-43fe-9ae0-980239e421da_26_Tool_steel_As_machined.jpg
Tool steel
Tool steels are metal alloys with exceptionally high hardness, stiffness and abrasion resistance. Suitable for manufacturing industrial tools.

Alloys

Tool steel A3 Tool steel H13 | 1.2344 Tool steel S7 Tool steel O1 Tool steel A2 | 1.2363 Tool steel D2 | 1.2379 See all alloys


Learn more
d02bc141-2cee-4d78-a8d2-fe287d613cb3_10_Titaninum_smoothed.jpg
Titanium
Titanium is a metal with excellent strength-to-weight ratio, low thermal expansion and high corrosion resistance that is sterilizable and biocompatible.

Alloys

Titanium Grade 5 | 3.7164 | Ti6Al4V Titanium Grade 2 Titanium Grade 1


Learn more
9b48b0ec-e5a9-4447-94cc-9c294b90e5b8_inconel_718.jpg
Inconel
Inconel is a high-strength, corrosion-resistant nickel alloy. Ideal for aerospace applications.

Alloys

Inconel 718


Learn more
94aba5ee-4358-4e0c-9f34-ade0f2f3e474_invar.jpg
Invar
Invar is a nickel alloy with a very low coefficient of thermal expansion. Ideal for applications where high dimensional stability is required, such as precision instruments, engines valves and large aerostructure molds.

Alloys

Invar


Learn more
Plastics
POM (Delrin/Acetal)
POM (Delrin/Acetal)
Nylon
Nylon
ABS
ABS
PEEK
PEEK
PTFE (Teflon)
PTFE (Teflon)
Polycarbonate
Polycarbonate
Polyethylene
Polyethylene
PVC
PVC
PMMA (Acrylic)
PMMA (Acrylic)
PET
PET
Polypropylene
Polypropylene
G-10
G-10
FR4
FR4
aa52d3d7-77c9-4ead-b7f0-54cfcd167dad_18_POM_Delrin_smoothed.jpg
POM (Delrin/Acetal)
POM is an engineering thermoplastic used in precision parts requiring high stiffness, low friction, and excellent dimensional stability.

Learn more
b47aa5c9-6bc7-4c6d-b14f-66b5723aaa22_11_Nylon_Smoothed.jpg
Nylon
Nylon - polyamide (PA) - is an engineering thermoplastic with excellent mechanical properties and high chemical and abrasion resistance.

Learn more
67b368ff-4c4e-4f41-9fa5-377e914940a7_05_ABS_Smoothed.jpg
ABS
ABS is a common thermoplastic with all-around good mechanical properties, excellent impact strength, good heat resistance and good machinability.

Learn more
7ce3a2af-2f43-4493-aa50-15172a8c962d_08_PEEK_As_machined.jpg
PEEK
PEEK is a high-performance engineering thermoplastic with excellent mechanical properties and chemical over a very wide temperature range.

Learn more
47b0fd51-5b25-401b-afbb-081c3c2c24c4_16_PTFE_Teflon_smoothed.jpg
PTFE (Teflon)
PTFE is an engineering thermoplastic with excellent chemical and thermal resistance and the lowest coefficient of friction of any know solid.

Learn more
889525c9-dd80-4ead-9fce-90b25915c1ab_06_Polycarbonate_PC_Smoothed.jpg
Polycarbonate
Polycarbonate (PC) is a thermoplastic with high toughness, excellent impact strength and good machinability. Can be optically transparent.

Learn more
77c138e8-db6f-4bb4-ad6e-763f7b63ef59_28_PE_As_machined.jpg
Polyethylene
Polyethylene (PE) is a thermoplastic with high strength-to-weight ratio, good impact strength and excellent weather resistance.

Learn more
b0cb44f6-3b46-4818-ad2a-61558da18541_17_PVC_smoothed.jpg
PVC
PVC is the third most used plastic with all-around good mechanical properties, excellent chemical and weather resistance and good toughness.

Learn more
ef816dfd-99b8-4ed4-b8c1-13e414664975_PMMA-acrylic-injection-molding-9.jpg
PMMA (Acrylic)
PMMA is a transparent rigid plastic often used as a substitute for glass.

Learn more
e0913226-a327-4f89-9456-45b46d6207d1_cnc_pet.jpg
PET
PET is a tough plastic that offers excellent wear resistance and mechanical strength.

Learn more
ba701295-e065-44b8-872a-c4b2761d13eb_15_Polypropylene_PP_smoothed.jpg
Polypropylene
-

Learn more
a19964ba-ec89-4510-83d3-18036c85fdfd_27_G-10_As_machined.jpg
G-10
G-10 is a high-pressure fiberglass laminate with a high strength, low moisture absorption, and high level of electrical insulation and chemical resistance.

Learn more
8db2a2ef-0970-4052-b9c8-3558b58d3f09_FR4_cnc.jpg
FR4
FR4 is a class of glass fiber epoxy laminate that is flame retardant, with similar properties to G-10.

Learn more
We can source any other material on request, but quotes take up to 48 hours.

CNC machining surface finishes

We can generate instant quotes for 10+ surface finishes.

As machined (Ra 3.2μm / Ra 126μin)
This is our standard finish. Parts are machined and deburred, sharp edges are chamfered.
Learn more As machined (Ra 3.2μm / Ra 126μin)
Smooth machining (Ra 1.6μm / Ra 63μin)
Smooth machining is like an ‘As machined’ finish but with slightly less evident machine marks. Parts are machined at a lower feed, no hand polishing is applied.
Learn more Smooth machining (Ra 1.6μm / Ra 63μin)
Fine machining (Ra 0.8μm / Ra 32μin)
Finer-looking machining obtained either through higher-precision machines, lower feeds, sharper tools, or a combination of all the above. Machining marks are less evident.
Learn more Fine machining (Ra 0.8μm / Ra 32μin)
Polishing (Ra 0.8μm / Ra 32μin)
Parts are manually polished in multiple directions. Surface is smooth and slightly reflective.
Learn more Polishing (Ra 0.8μm / Ra 32μin)
Brushed (Ra 1.2μm / Ra 47μin)
Parts are brushed manually with #400 - 600 grit sandpaper in order to reduce machining marks. Ideal to slightly reduce the roughness of the finish.
Learn more Brushed (Ra 1.2μm / Ra 47μin)
Bead blasted
Parts are bead blasted with glass beads which results in a grainy texture and reduced machining marks.
Learn more Bead blasted
Powder coated
Powder coating is a strong, wear-resistant finish that is compatible with all metal materials.
Learn more Powder coated
Black oxide
Applicable on steels, black oxide is a conversion coating used to improve corrosion resistance and minimize light reflection.
Learn more Black oxide
Electroless Nickel Plating
Parts are machined to Ra1.6µm and electroless nickel plated. Ideal for wear abrasion and corrosion resistance, not for cosmetic purposes.
Learn more Electroless Nickel Plating
Bead Blasted + Anodized type II (Glossy)
Parts are bead blasted, anodized type II and bright dipped. Results in glossy color. Ideal for cosmetic parts needing an increase in corrosion resistance.
Learn more Bead Blasted + Anodized type II (Glossy)
As machined + Anodized type II
Parts are anodized (type II) directly after machining. The most cost-effective anodizing option; ideal for non-cosmetic, functional parts. Used to improve wear and corrosion resistance.
Learn more As machined + Anodized type II
Brushed + Anodized type II (Glossy)
Parts are manually brushed with fine sandpaper to attenuate the machining marks and then anodized. Ideal for increasing the corrosion resistance of the part. Typically results in a glossy aspect.
Learn more Brushed + Anodized type II (Glossy)
Bead blasted + Anodized type II (Matte)
Parts are bead blasted and anodized type II. Ideal for increasing the corrosion resistance of the part. Results in naturally matte colors. For glossy colors, please select the bead blasted + glossy anodizing option.
Learn more Bead blasted + Anodized type II (Matte)
As machined + Anodized type III (Hardcoat)
Parts are machined and an anodizing type III coating is directly applied to the surface. Ideal to improve corrosion and wear resistance of components.
Learn more As machined + Anodized type III (Hardcoat)
Brushed + Electropolished (Ra 0.8μm / Ra 32μin)
Parts are brushed and electropolished. Ideal to reduce the micro-roughness of the part.
Learn more Brushed + Electropolished (Ra 0.8μm / Ra 32μin)
Chromate Conversion Coating
Parts are machined and a chromate conversion coating is applied. Ideal to increase the corrosion resistance of the part while maintaining its conductive properties. RoHS compliant.
Learn more Chromate Conversion Coating

Instant, online CNC quotes

Instead of traditional, rules-based quoting, we use machine learning algorithms to compare your CAD to millions of previously manufactured parts and generate a quote instantly.

  • Upload a CAD to start (STEP, STP, IGES, IGS, SLDPRT, 3DM, SAT, STL, OBJ or X_T)

  • Price updates in real-time as you change materials, lead time, etc..

  • No hidden costs. Our instant quotes are not just indications, but the actual price, and include shipping and customs up front.

Learn about how our quoting algorithm works 

Our ordering process

Receive instant quote
Upload your CAD to our 
online quoting platform
Confirm specs
Configure your part specifications and select a lead time that suits your schedule
Production
We select the best manufacturer for your order, and production begins immediately
Quality control
We take full responsibility for making sure your parts are manufactured according to our standards
Delivery

Our CNC Machining service has been rated 4.9/5

Over 247 customers are satisfied with our CNC Machining service.

“came out perfect”

timi adeyemi, san diego
Aluminum 6061-T6, CNC machining

“They were really good! I’d strive to make it cheaper though.”

Emin Vartanians, Pasadena
Aluminum 6061-T6, CNC machining

“Parts were made quickly and to specifications. Great speed and value.”

Jamu Alford, Venice
Teflon, CNC machining

“All parts were received, and the assemblies went together with no issues so far. I have no complaints!”

Kelly Williams, Benecia
Stainless steel 304, CNC machining

“The only mistakes were mine.”

Steven Garvey, Bella Vista
Aluminum 6061-T6, CNC machining

“Everything was done perfectly.”

James Mattson, Portland
Aluminum 6061-T6, CNC machining

“Parts look good. Haven't put them into assembly yet. Only observation so far is that they were very heavily buffed / deburred, which isn't my preference, since it affects some of the details.”

Rich Fox, Portland
Aluminum 6061-T6, CNC machining

“Parts were exactly what I wanted. Quick and easy.”

Todd Rider, Bellevue
Aluminum 6061-T6, CNC machining

“Amazing quality for the price”

Jason Millard, rapid city
Alloy steel 4340, CNC machining

“Accurate and affordable”

Jason Millard, rapid city
Brass C360, CNC machining

“Awesome quality awesome speed time frame”

Jason Millard, RAPID CITY
Aluminum 6082, CNC machining

“Amazing quality for a great price”

Jason Millard, rapid city
Alloy steel 4340, CNC machining

“Done right in a timely fashion”

Jason Millard, rapid city
Alloy steel 4340, CNC machining

“love your service and parts”

Jamie Ellenwood, Rapit City
Mild steel 1018, CNC machining

“we are very impressed and working on an order for 100 more pieces in Sept. thank you!!”

James Ellenwood, RAPID CITY
Aluminum 6061-T6, CNC machining

“great quality”

jamie Ellenwood, RAPID CITY
Mild steel 1018, CNC machining

“Excellent. Could not be happier. Exceptional work.”

DANIEL CLARKE, Calgary
Aluminum 6061-T6, CNC machining

“I like how they were able to quickly sourced my parts at good rate and followed up with manfacture to ensure quality of the parts.”

Majed Affan, Calgary
Aluminum 6061-T6, CNC machining

“The quality of the parts matched my expectations.”

Igor Ganakovsky, Calgary
Aluminum 7075, CNC machining

“Great price”

Brandon Sweeney, Pflugerville
Aluminum 6061-T6, CNC machining

“Fit, finish and function are perfect.”

Dennis Brady, Waxahachie
Aluminum 6061-T6, CNC machining

“Parts were perfect. Delivery was prompt. Great experience.”

Leonard Haberman, Cypress
Alloy steel 4140, CNC machining

“Good parts as expected”

Pratheen Barthiban, Waverly
Aluminum 6061-T6, CNC machining

“Form, fit and function are as intended. Quick turn around time.”

Joshua Lind, North Liberty
Aluminum 6061-T6, CNC machining

“The part was flawless.”

Kris Steward, Cordova
Aluminum 6061-T6, CNC machining

Show more reviews

Show less reviews

The Hubs Standard - consistent quality, every time

Hubs takes the stress out of manufacturing by guaranteeing the quality and consistency of every part. Each order is dimensionally and visually inspected by our in-house quality control team to make sure it meets the Hubs Standard. If you’re not satisfied with your order, we’ll remake your parts as fast as possible, free of charge, or refund you - whichever you prefer.

Threads and tolerances
Threads and tolerances

GD&T and tight tolerances

Learn more
Cosmetic standards
Cosmetic standards

Finishes and visual inspection

Learn more
Part cleaning & general finishing
Part cleaning & general finishing

Edge breaking, deburring and cleaning

Learn more
Inspection standards
Inspection standards

Sampling rules, AQL and defects classification

Learn more
Non standard features requirements
Non standard features requirements

Knurling, part marking and sharp corners

Learn more
Quality documentation
Quality documentation

Metallurgy testing, FAI, CMMS & other documents

Learn more

From CNC rapid prototyping to production

Aluminum CNC machined medical parts, As machined, Black hardcoat anodizing, Prototyping, Surface finish
Rapid prototyping

Our platform accelerates prototyping development cycles by reducing pre-production admin from weeks to minutes:

  • Instant quotes

  • Instant DFM feedback

  • Online quote and order management

  • Live production and delivery tracking

Our platform is designed to be so intuitive that you can order your parts quickly and efficiently without any assistance. But if you ever need us, we're here to help.

Serial production of CNC machined parts, as machined surface finish
Production

For production orders, we have full-service teams ready to guarantee identical specs on every order for the best unit price:

  • Dedicated project managers in your time zone

  • Application engineers for DFM cost optimisations

  • First Article Inspection (FAI)

Manufacturing is about relationships, so we have staff on the ground wherever you are to help make sure everything runs smoothly and on time, every time.

How Hubs compares 
to traditional CNC machine shops

We use automation to make custom machining easier, faster and more affordable than traditional machine shops:

  • We have an incredibly broad range of capabilities - much more than most individual shops.

  • Our quotes are generated instantly - request as many quotes as you like without feeling guilty.

  • No hidden costs - all costs are included in our quotes and we always commit to the pricing shown.

  • No limits on order size - we can scale with you from one-off prototypes to millions of production parts.

  • We leverage market forces within our network to guarantee competitive pricing on every order.

We machine rapid prototypes and low-volume production orders for customers in multiple industries: aerospace, automotive, defense, electronics, hardware startups, industrial automation, machinery, manufacturing, medical devices, oil & gas and robotics.

How do you start CNC machining parts with Hubs?

Hubs combines its instant quoting tool and a global network of CNC machining centers to manufacture custom parts for applications ranging from rapid prototyping to serial production. You can use Hubs’ digital manufacturing platform to source high quality, complex metal and plastic parts efficiently and reliably. 


To start sourcing CNC-machined parts with Hubs, simply upload a CAD file and technical drawing to our free quote building tool. You’ll either receive an instant quote and be able to start production in only a few clicks, or you’ll be directed to one of our engineers for potential design for manufacturability (DFM) guidance.

How does Hubs’ custom CNC machining service work?

CNC machining is the most common subtractive manufacturing technology available today and an optimal method for producing custom metal and plastic parts for prototyping and production applications. Using CAD (computer-aided design) modeling software and G-code, CNC milling and CNC turning machines remove material from a solid workpiece with precision and speed. 


CNC machines manufacture robust parts with tight tolerances and a range of impressive material properties (mechanical and chemical). Our custom CNC machining service is ideal for one-off jobs and low-to-medium volume production, thanks to automation and high repeatability.

Hundreds of CNC machining shops in one network

Hubs’ global network of CNC machine shops comprises experienced manufacturing partners operating 2-, 3-, and 5-axis machines. Our machinists work with a huge range of materials, including aluminum , stainless steel , mild , alloy & tool steels and production-grade polymers. We also offer many different surface finishing options such as anodizing , electroless nickel plating , powder coating and custom part marking with laser engraving and silk screening. For certain types of parts, you can also request rapid machining to get your parts manufactured in as few as five days.

Hubs is a Protolabs company

In January 2021, Hubs was acquired by Protolabs, joining forces to build the world’s most comprehensive online manufacturing platform.

When to manufacture parts with Protolabs?

Protolabs offers lightning-fast manufacturing with its automated in-house machines. The digital manufacturer is a great choice for geometrically simple (3- and 5-axis milling) parts and time-sensitive projects. 

  • Interactive quotes with design analysis

  • The fastest turn-around in market (as fast as 1 day)

  • US export controlled parts (ITAR) or critical parts

  • Ideal for prototypes and small volumes of end-use parts

When to manufacture parts with Hubs?

Hubs offers an incredible range of manufacturing capabilities and can support both one-off prototyping and full-scale production quantities.  Hubs is the best manufacturing solution for geometrically complex parts (5-axis) and secondary operations such as specific surface finishes.

  • Instant online quotes

  • The widest breadth of capabilities, with 59 materials and 15 surface finishes (ISO-9001)

  • High-precision machining, with tolerancing down to 0.1 for plastics and 0.05 mm for metals (ISO 2768)

  • Going from prototype to production

  • Competitively priced for serial production

FAQ's

What tolerance standards do you guarantee?

We guarantee that our manufacturing partners follow ISO 2768 standards for all CNC machined parts. Parts machined with metal will follow ISO 2768-m (medium) or ISO 2768-f (fine). Parts machined with plastics will follow 2768-m (medium). Geometric tolerances down to ± 0004 in. (0.010 mm) are possible but must be clearly indicated in technical drawings. We can achieve tighter tolerances on shafts with up to H7 fits with manual quoting and on occasion tighter.

Read more about how to prepare a technical drawing here.

What are the minimum and maximum dimensions you can machine?

At Hubs we offer CNC milling (​​3-axis, 3+2-axis and 5-axis) and turning. Milled parts can be machined up to 2000 x 1500 x 200 mm (78.7 x 59.0 x 7.8 in.) for 3/3+2 axis CNC milling. For 5-axis milling, the maximum part size is 650 x 650 x 300 mm (25.5 x 25.5 x 11.8 in.). The maximum diameter for CNC turning is 431mm (17 in.), length 990 mm (39 in). Minimum part dimensions recommended are around 0.39 x 0.39 x 0.39 in. (10 x 10 x 10mm).The minimum for feature dimensions is 0.5 mm. 

We are limited to a 1000 mm (39 in.) maximum size for parts on our platform. If you need higher dimensions, you can place the request through your account manager.

What cosmetic standards do you guarantee?

Deburring and edge breaking are standard procedures for all CNC machined parts. If there are any critical edges that should be left sharp, they must be clearly indicated in technical drawings. Surfaces will be free of defects such as scratches, dents, stains, blemishes, hanging marks, minor defects. Surfaces indicated as critical (primary (a) side, as indicated on the technical drawing) will be free of mill steps and other marks. For the secondary (b) side, minor hanging marks and up to 2 minor defects are acceptable. A number of post-processing and finishing methods can be applied to improve the surface roughness, visual properties and wear resistance of machined parts.

Read more about surface finishes for CNC machining. 

How much does your CNC machining service cost?

We use machine learning algorithms to calculate the exact cost of any machinable part directly from a CAD file, based on millions of CNC machining orders we’ve previously processed. No more waiting for technicians to get back to you via email, we can generate an exact quote for you instantly (well, in about 5 seconds).

This means you always know the price up front. Simply upload a CAD file to generate a quote: get an instant CNC machining quote . Our quotes are completely free, you only need to create an account so we can protect your IP.

It’s so easy to use that we encourage mechanical engineers to use it constantly as they optimize their designs for cost. Whenever you’ve made a new design iteration, simply load both the old and the new design into our quoting tool and see if the price is different.

This technology means our manufacturing partners also don’t need to do their own machining quotes, which means less overhead for them. This makes the whole process less expensive, which translates into lower prices for our customers.

How can I reduce the cost of my machined parts?

The main costs associated with CNC machining can be grouped into machining time, start-up costs, material costs, and feature costs. To reduce costs you need to understand the impact of these factors on cost.

The best way to reduce machining time is to design features that can be machined quickly, for example by choosing the correct radii for internal corners, reducing cavity depth, increasing wall thicknesses, limiting thread length and designing holes with standard sizes.

Material costs can be reduced by considering the size of the blank required, and the cost and machinability of the bulk material (softer alloys are faster to machine).

Start-up costs can be reduced by reducing the number part rotations or repositioning required to finish the part, for example by separating geometries into multiple parts that can be assembled later.

Feature costs can be reduced by only using tolerances when strictly necessary, removing all text & lettering, and avoiding multiple surface finishes.

These tips can be read in more detail in our full guide to reducing the cost of CNC machined parts.

How do you select the exact manufacturer for my parts?

We use algorithms to identify the best manufacturer in our network for your specific order, based on their proximity to you, their experience with similar parts and their available capacity right now. This allows us to balance our customers’ demands for speed, cost and quality better than ever before.

Where can I learn more about CNC machining?

Hubs was started by mechanical engineers and we have many more engineers and technicians in our team. Together we’ve written a lot of content on CNC machining over the years. You can find a selection of resources below, or you can head to our knowledge hub and filter on CNC machining to read case studies, in-depth design guidelines and explanations of different surface finishes.

We’ve also written a complete engineering guide to CNC machining. Here you can learn about how the many different kinds of mills and lathes work and the different materials available, so you can easily compare their benefits & limitations. You’ll also learn the basic design rules for machining and the most common applications of each material and surface finish, so you can make the right choices every time.

CNC machining resources for engineers

CNC 101 - hero image 3

CNC machining: The manufacturing & design guide

Learn about how the many different kinds of CNC machines work, the materials available, the benefits & limitations, basic design rules and the most common applications.

Read article
Introduction to CNC machining

What is CNC machining?

What is CNC machining and how does it work? Learn the basic principles and fundamental mechanics, as well as the key benefits and limitations, of this subtractive manufacturing process.

Read article
How to design parts for CNC machining

How to design parts for CNC machining

In this complete guide to designing for CNC machining, we've compiled basic & advanced design practices and tips to help you achieve the best results for your custom parts.

Read article
Minimizing the cost of CNC parts (13 proven design tips)

14 proven design tips to reduce the cost of CNC machining

Make the most of CNC machining by optimizing your design and making the right material choices. Read these 14 design tips to help you reduce CNC-machining costs and create the perfect parts for your project.

Read article
How to prepare a technical drawing for CNC machining

How to prepare a technical drawing for CNC machining

How do you prepare technical drawings for CNC machining and why are they important? Technical drawings are widely used in manufacturing to improve the communication of technical requirements between the designer and engineer and the manufacturer.

Read article
Selecting the right CNC material

How do you select the right materials for CNC machining?

This comprehensive guide compares the 25 most common materials used in CNC machining and helps you choose the right one for your application.

Read article
Surface Finishes for CNC Machinining

What are the types of surface finishes for CNC machining?

What surface finishes are available for CNC machining? You can apply post-processing and surface finishes to improve the surface roughness, cosmetic properties and wear resistance of metal parts. Learn about the most common ways to finish [CNC machined parts](https://www.hubs.com/cnc-machining/), and how to select the best methods for your applications.

Read article
Heat treatments for CNC machined parts

What is heat treatment and how does it improve CNC-machined parts?

What are the different types of heat treatment and how do they affect CNC-machined parts? This article explores how heat treatments can be applied to many metal alloys to drastically improve key physical properties like hardness, strength and machinability.

Read article
3D Printing vs. CNC machining

3D printing vs. CNC machining: Which is better for prototyping and end-use parts?

Is 3D printing or CNC machining better for your custom part applications? Learn the practical differences between CNC machining and 3D printing and how to select the right technology for manufacturing prototypes, end-use parts and everything in between.

Read article
CNC 101 - hero image 3

CNC machining: The manufacturing & design guide

Learn about how the many different kinds of CNC machines work, the materials available, the benefits & limitations, basic design rules and the most common applications.

Read article
Introduction to CNC machining

What is CNC machining?

What is CNC machining and how does it work? Learn the basic principles and fundamental mechanics, as well as the key benefits and limitations, of this subtractive manufacturing process.

Read article
How to design parts for CNC machining

How to design parts for CNC machining

In this complete guide to designing for CNC machining, we've compiled basic & advanced design practices and tips to help you achieve the best results for your custom parts.

Read article
Minimizing the cost of CNC parts (13 proven design tips)

14 proven design tips to reduce the cost of CNC machining

Make the most of CNC machining by optimizing your design and making the right material choices. Read these 14 design tips to help you reduce CNC-machining costs and create the perfect parts for your project.

Read article
How to prepare a technical drawing for CNC machining

How to prepare a technical drawing for CNC machining

How do you prepare technical drawings for CNC machining and why are they important? Technical drawings are widely used in manufacturing to improve the communication of technical requirements between the designer and engineer and the manufacturer.

Read article
Selecting the right CNC material

How do you select the right materials for CNC machining?

This comprehensive guide compares the 25 most common materials used in CNC machining and helps you choose the right one for your application.

Read article
Surface Finishes for CNC Machinining

What are the types of surface finishes for CNC machining?

What surface finishes are available for CNC machining? You can apply post-processing and surface finishes to improve the surface roughness, cosmetic properties and wear resistance of metal parts. Learn about the most common ways to finish [CNC machined parts](https://www.hubs.com/cnc-machining/), and how to select the best methods for your applications.

Read article
Heat treatments for CNC machined parts

What is heat treatment and how does it improve CNC-machined parts?

What are the different types of heat treatment and how do they affect CNC-machined parts? This article explores how heat treatments can be applied to many metal alloys to drastically improve key physical properties like hardness, strength and machinability.

Read article
3D Printing vs. CNC machining

3D printing vs. CNC machining: Which is better for prototyping and end-use parts?

Is 3D printing or CNC machining better for your custom part applications? Learn the practical differences between CNC machining and 3D printing and how to select the right technology for manufacturing prototypes, end-use parts and everything in between.

Read article

Show more

Show less

Our other manufacturing services

3D printing
3D printing

FDM, SLA, SLS & MJF

Read more
Sheet metal fabrication
Sheet metal fabrication

Laser cutting, bending, post processing

Learn more

Put your CNC parts into production today

Get an instant CNC machining quote