How to start a 3D printing business

"I print anything" is hard to sell. Start with one type of customer with a recurring problem:

• Replacement parts and fixtures for workshops, shops or local industry
• Prototypes for designers, engineers and startups
• Your own products for marketplaces (organisers, decor, accessories)
• Miniatures, cosplay and personalised items

Validate before investing: talk to five potential customers and ask what they buy today, from whom and for how much.

For most niches, one or two reliable FDM printers are enough to start. Prioritise machines that run for hours unattended, with easy-to-find spare parts. Resin (SLA/MSLA) pays off mainly for miniatures, jewellery and fine detail.

• Starting filament stock in your niche's materials (PLA, PETG, TPU…)
• Dry box or dryer for hygroscopic materials
• Scale, calipers and finishing tools

See also: how to choose a professional 3D printer.

Rules depend on your country, so always confirm with an accountant. In general terms:

• In Portugal: register your activity with the tax authority under the right activity code, issue invoices with certified software and understand which VAT regime applies.
• In the US: register the business in your state, consider whether an LLC makes sense and check your sales tax obligations.
• Anywhere: don't print trademarked designs or non-commercial-licensed models for sale.

The most common mistake is charging only for filament. Real cost includes material, electricity, machine wear, prep and finishing time, packaging and a buffer for failed prints.

Cost = material + energy + machine + labor + packaging + failures

Run the numbers in seconds with the free 3D printing cost calculator or read the complete cost guide.

With the real cost, apply a margin that pays for your sales time, slow months and growth. Offer quantity discounts instead of cutting the unit price on every request, and always include taxes and shipping in the quote.

How to price a 3D printed part

• Start with your network: friends, former colleagues and local businesses.
• Show real parts, with photos and short process videos.
• Join communities in your niche and respect each group's rules.
• Use marketplaces (Etsy, eBay, Facebook Marketplace…) to test your own products.
• Ask happy customers for reviews.

At ten orders a week, spreadsheets and phone notes start to fail: spools running out mid-print, forgotten quotes, late invoices. Keep orders, the production queue, filament stock, customers and invoicing in one place.

Filament stock management without spreadsheets