You don't need a ten-printer farm to start. One machine, a clear niche, and an organized way to quote are enough to land your first customers. This guide goes in order: what to decide first, what to buy, how to get the first orders, and which mistakes to avoid so you don't lose money while you learn.
Step 1: pick a niche before you pick a machine
Starting with "which printer should I buy?" is starting backwards. First decide who you'll sell to and what problem you solve. The niche defines what material you need, what part size, what finish, and how much you can charge. A narrow niche (say, replacement parts for one type of equipment, or custom items for local businesses) makes you easier to find and recommend than "I print anything".
Ask people who already have the problem
Talk to 5 or 10 potential customers before buying. Ask which parts are hard to find, what they pay today, and how long delivery takes.
Look for little direct competition
If a hundred people in your city already sell the same thing with the same photo, you compete on price alone. A variant, a customization, or an extra service sets you apart.
Choose parts you can repeat
A product printed several times from the same file is easier to quote and deliver on time than a one-off order built from scratch each time.
Step 2: buy the minimum to get going
An entry or mid-range FDM printer, a couple of material spools, and basic finishing tools are enough to validate your idea. Don't buy equipment "just in case": every extra purchase before you have customers is idle money. Rough investment ranges are in [the profitability article](/en/blog/es-rentable-negocio-impresion-3d).
Buy a scale and a power meter
They're cheap and give you the two numbers almost nobody measures early on: how many grams each part really uses and how much electricity your machine draws. Without them, any price is a guess.
Step 3: work out your real cost before setting a price
A part's cost isn't just filament. Add material (with waste), electricity, machine wear, and your time to prepare, post-process, and deliver. With that total you can choose a margin. The full formula is in [how to price 3D prints without losing money](/en/blog/como-cotizar-impresion-3d).
Price of a part
Step 4: land your first customers
Your close circle and local businesses
Your first orders almost always come from people who already know you: family, friends, shops nearby. Offer a sample part and ask for feedback.
A simple storefront
A social profile with clear photos of your parts and how to order. You don't need a full online store to sell your first units.
A clear price, in writing
Send every quote in writing with what's included and the delivery time. It avoids misunderstandings and looks professional from day one.
The mistakes that cost the most early on
Frequently asked questions
How much money do I need to start a 3D printing business?+
Which printer should I buy to start?+
Do I need to register my business right away?+
How do I know what price to set on my first parts?+
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