Startup cost
$2k–$15k
TRUiC Business Ideas
Decision Snapshot
Idea Score
59
Startup cost
$2k–$15k
Profit margin
15%
Break-even
4 mo–12 mo
Time to launch
12 wk–36 wk
Demand trend
Stable
5-yr failure rate
—
Capital intensity
Medium
Time commitment
Full time

Many products that businesses use and sell are made through a highly precise process called computer numerical control (CNC) machining. CNC machining businesses specialize in this type of manufacturing, which uses computer-controlled machines to produce products with a high degree of accuracy.
Our guide is in 3 parts:
CNC machines aren’t inexpensive. Lathes alone can cost anywhere from a few thousand dollars to tens of thousands, and many shops have several pieces of equipment. Nevertheless, there are ways for business owners to keep their startup costs relatively low — and it’s possible to start a CNC machining business for very little.
First, many business owners start out working from their garage or a workshop that they already have. This eliminates the need to lease a workspace until there’s regular work.
Second, business owners don’t need lots of equipment or the fanciest available equipment when first getting started. For example, Todd Adlon opened his shop with just a mill and a lathe, adding equipment later on. Several other business owners got started with just a basic lathe.
Having only basic equipment will limit the amount and type of work that a CNC machining business can do, but there’s enough basic work available to support a small shop that has only one or two machines. Specifically, there are lots of clients who need prototypes made, and larger shops often won’t make one-off prototypes.
The ongoing expenses for a CNC machining business can be substantial. They include raw material costs, utilities, equipment maintenance costs, lease payments, and employee salaries.
Most CNC machining businesses serve other businesses, although a few make products that are directly marketed to individuals.
Business-to-business machine shops can be divided into two categories: job shops and product shops. Job shops take orders from clients and then make items that are built to their client’s specifications. Product shops design and create their own products, then sell those products to businesses.
A CNC machining business makes money by selling machined parts. Prototypes may be sold as single items, but most orders are for large quantities of the same part.
The cost of CNC machining job varies greatly depending on the type of product ordered, how many are ordered and whether there are special setup requirements. Kennewell CNC Machining uses the following rubric to set prices for lathe jobs:
A setup charge of $120 to $160
Raw materials are marked up by 20 to 35 percent
Special fixtures are added onto the total cost
Machining is charged at a rate of $60 to $150 per hour
Post-machining work that’s subcontracted is marked up by 20 to 35 percent
Most successful CNC machining businesses operate on a 10 to 15 percent net profit margin. For a shop that has just $500,000 in annual work, that generates a profit of $50,000 to $75,000 on top of the business owner’s salary.
CNC machining businesses can increase their profitability and diversify their revenue by slowly expanding the machining services they offer. Shops can do this without taking on too much risk if they only expand when a contract for a different type of work becomes available. If a contract will pay for a new piece of equipment, then taking on that creates an easy way to afford new machinery that lets a business expand its offerings.
CNC machining involves loading materials into machines, programming machines, and letting the machines run. Depending on the work being done and type of machine, it may be necessary to manually operate the machine or manipulate the parts at certain times.
When not working directly with machines, business owners and employees take customer orders, order additional supplies and ship completed orders. Additionally, there is usually a designated person who schedules the machining work to maximize efficiency. This person may be the business owner or an employee.
Business owners must know how to operate CNC machines, which is more complex than using non-computerized equipment. Most business owners have previous experience working as a CNC machinist for other businesses, and those who aren’t already familiar with these machines may want to spend some time working for someone else before opening their own shop.
Additionally, business owners can take CNC machining classes. Vocational schools, technical schools, and community colleges sometimes offer such courses, and there are also online programs. Tooling University and SME are two organizations that offer online courses.
A CNC machining business can remain a small operation that’s run by one or two people, or it can grow to be a large company that completes orders for clients throughout North America. American Tooling & Prototype is a local CNC machining business in Ann Arbor, Michigan, and Plethora is an example of a larger company.
Todd Adlon and many other business owners warn against growing a CNC machining business too quickly. Investing in equipment and hiring employees before a business is ready to only increases overhead and makes it harder to remain profitable.
Instead, a strategy that slowly grows a CNC machining business is more likely to provide long-term sustainability and profitability. Business owners should only hire employees once there’s enough work for them do to, only purchase machines once there are employees to operate them and only lease larger spaces once there’s the equipment to fill it.
Many business owners start out working by themselves, bringing on CNC machinists as employees once the business’ workload and revenue allows. Half of all CNC machinists make between $20.20 and $31.28 per hour, according to the Bureau of Labor Statistics.
Business Evaluation & Strategy Tool
We'll walk you through the four pillars every business needs: Points of Leverage, Marketing Strategy, Financial Model, and Personal Compatibility. At the end you'll see a personalized report and your action plan below will be tailored to your answers.
Every viable business has natural advantages. Below are common leverage points across four categories. Pick the ones that apply to your Cnc Machining business. We've pre-suggested a few based on your idea — review and adjust.
Without a way to connect with customers, even great businesses fail. Pick the channels you plan to use to reach your customers.
Enter your monthly baseline costs — the minimum overhead to keep the business running. Then we'll calculate how many sales per month you need to break even.
A business that doesn't fit your life will fail no matter how good the numbers look. Tell us how this business fits you.
Complete the four pillars and your personalized summary will appear here.
Nine concrete steps to take you from idea to open business, grouped into 30-day phases. Complete the planner above and we'll highlight what's most important for your situation.
An LLC keeps your personal assets separate from business debts and lawsuits — the most common reason small business owners choose this structure. Sole proprietorships and partnerships do not provide this protection.
Apply for your free Employer Identification Number through the IRS, then register for any state or local taxes that apply to your business (sales tax, franchise tax).
A dedicated business account is required to maintain personal asset protection. Mixing personal and business finances ('piercing the corporate veil') can void your LLC's liability shield.
Recording expenses and income from day one makes tax filing easier and lets you see when the business is actually profitable. Use software (QuickBooks, Wave) or a part-time bookkeeper.
State and local requirements vary widely. Brick-and-mortar businesses typically need a Certificate of Occupancy; service businesses may need specific professional licensing; food businesses need health permits.
General Liability Insurance is the most common starting point. If you'll have employees, most states require Workers' Compensation. Specific industries need additional coverage (product liability, professional liability, etc.).
Your brand is how customers perceive and remember you. A clear name, logo, and visual identity make every later marketing decision easier and protect you legally as you grow.
Every legitimate business needs a website. Social media pages are not a substitute — you don't own the platform. Modern website builders mean you can launch a clean site in a weekend without a developer.
A dedicated business number keeps your personal life private, makes the business look legitimate, and lets you route calls professionally. Cloud phone services start under $20/month.