Technical article

What Are the Best 3D Printers on the Market? And When Not to Buy One

Every few weeks, someone asks a version of the same question: 'Should we just buy a 3D printer?'

Usually it's an engineer tired of waiting on supplier lead times. Sometimes it's someone from finance forwarding a quote for China CNC turning for sale at less than half our current price. And once in a while, a product manager asks whether we've used ProtoLabs for parts that need to look and function like production parts.

I'm the office administrator who manages purchasing at a 40-person product development company. Since 2020, I've handled roughly 60–80 orders a year across eight vendors—about $180,000 in annual spend. I don't design parts, and I don't claim to be an engineer. My job is to make sure the right parts arrive at the right time without blowing the budget or making engineering want to scream.

Here's what I've learned: there's no universal answer to the 'buy or outsource' question. It depends on how fast your design is changing, how many parts you really need, and what happens if a part fails.

(And no, I can't help with CO2 laser eyelid tightening before and after questions. My laser expertise starts at the cutting table and ends at the cutting table.)

Most situations fall into one of three scenarios.

Scenario 1: You're iterating quickly—before buying a printer, ask who will actually run it

When engineers ask me, 'What are the best 3D printers on the market?' what they usually mean is, 'I want parts faster.' The default solution sounds obvious: buy a printer, put it in the lab, and stop depending on outside vendors.

I fell for that in 2022. We bought a well-reviewed mid-range FDM printer and spent about $1,400 on the machine plus another $300 on filament and spare parts. For the first month it was great. Then the nozzle clogged. The build plate needed re-leveling. Someone ran a 16-hour print overnight with the wrong support settings and walked into a blob of plastic in the morning. That failure cost more in wasted time and material than the part would have cost from an outside service.

The hidden cost wasn't the printer. It was attention. Every failed print pulled an engineer away from design work, and before long our 'rapid iteration' tool was making iteration slower.

That doesn't mean in-house printing is always wrong. If you have an engineer who genuinely enjoys operating and maintaining the machine, and you print several times a week, buying one can absolutely make sense. As of January 2025, the models I've seen most often on engineering desks are Bambu Lab's X1-Carbon and P1S for reliable FDM, Formlabs' Form 4 for smooth resin parts, and Prusa's MK4 if the team wants an open, hackable workhorse. That list will probably look different next year.

If you ask me, though, the best 3D printer on the market is the one someone on your team will actually maintain. If nobody wants that role, outsource your prints instead. Quick-turn 3D printing services have been dependable for us—you pay more per part, but you don't pay for midnight failures, wasted filament, or an engineer's lost afternoon.

Scenario 2: You have a stable design and real volume—offshore CNC turning can be a smart play, if you price the whole thing

Once a part stops changing and your quantity climbs, unit price starts to dominate the conversation. That's when terms like 'China CNC turning for sale' start showing up in search history, and I get it. The price gap is real.

But the part price isn't the total price.

In 2023, we needed 600 stainless steel pins. A local machine shop quoted $2.80 per pin. A supplier overseas quoted $0.90. That's a $1,140 saving on paper, so we placed the order.

The pins arrived with the wrong material. The drawing called for 17-4 PH stainless steel; the supplier used 304 because, in their words, 'stainless is stainless.' The parts failed our corrosion test. We had to reorder, pay for expedited air freight, and eat the cost of the first batch. The final bill was well above the original domestic quote.

I'm not telling this story to trash overseas manufacturing. Plenty of shops in China do excellent CNC turning work, and we've had good results when we've done our homework. The problem was our homework, not their machines.

Now I treat any quote from a low-cost supplier as an incomplete number until I add:

  • raw material specifications and certifications, written into the PO;
  • clear tolerance callouts—GD&T on a proper 2D drawing beats a long email chain;
  • a pre-production sample that has to be approved before the full batch runs;
  • realistic shipping time, plus customs, plus the cost of expedited freight if things slip;
  • and the value of my own time spent chasing updates.

Do that math honestly, and offshore CNC turning is sometimes still the winner. Sometimes it isn't.

Scenario 3: The part carries your reputation—don't optimize for price

There's a third scenario that people usually discover after they've been burned: some parts have to be right the first time.

I'm thinking of customer-facing prototypes, functional samples that go to a client's test lab, or components that could fail in a way that damages your credibility. These parts aren't just metal or plastic. They're evidence of how your company works.

Chase the lowest quote on one of those, and you're gambling your reputation to save a few hundred dollars.

That's where we started using ProtoLabs more intentionally. When I was evaluating them, I searched for 'ProtoLabs aerospace 3D printer reviews' to see how the service held up in industries where parts can't fail. What I found was that engineers rarely obsess over individual printers. They focus on the process behind them—material traceability, inspection reports, repeatability. If a manufacturer can satisfy that bar, they can usually handle a client-facing prototype.

When I eventually created an account on the ProtoLabs official website, what stood out was the lack of friction. Upload a CAD file, get an instant quote with design-for-manufacturing feedback, approve, and the parts show up with documentation. That probably sounds like an ad, but honestly, it's just how buying should work.

Is it the cheapest option? No. For some parts it costs roughly twice as much as an overseas supplier. But if you ask me whether that difference is worth it for a part that will be held by a customer, the answer is almost always yes. The small premium buys certainty—no rejected batches, no tolerance debates, no explaining to sales why the sample feels like a downgrade.

It's tempting to think of quality as a cost. In my experience, poor quality is the cost. A part that fails is always more expensive than the one that was done right the first time, whether it fails in testing or in front of a client.

How to tell which scenario you're in

If this feels like it applies to multiple situations at once, that's normal. Most companies live in more than one scenario. Here's how I decide which path to take for each order:

  1. If the design is still changing week to week: and you have a machine owner on the team, buy a 3D printer. If no one wants to maintain it, outsource to a quick-turn service.
  2. If the design is frozen: you need hundreds of parts, and failure won't cause a serious problem, compare offshore CNC turning against domestic suppliers—but compare total landed cost, not per-unit price.
  3. If the part will be seen by customers: used in qualification testing, or tied to a product you're putting your name on, use a digital manufacturer like ProtoLabs and let quality lead the decision.

If you're still unsure, look at your last order. Was it late? Did the part work the first time? Did anyone inspect it before it shipped? Your honest answers will tell you which scenario you're actually in.

My experience is based on roughly 200 mid-range orders for one type of product development firm. If you're sourcing millions of parts at ultra-low cost, or working with exotic materials, your math will look different. But after five years of signing purchase orders, I keep coming back to the same conclusion: decide what hurts most when a part fails—your timeline, your budget, or your reputation—and let that answer choose your supplier.

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Ana Kovacevic

Ana Kovacevic

Ana Kovacevic is an independent CNC milling and five-axis machining analyst covering precision parts, machining centers, workholding, and complex surface strategies. She applies ISO 1101 geometrical tolerancing while examining datum schemes, tool reach, setup count, spindle load, surface roughness, and inspection access before accepting tight requirements. Her technical guides help design and manufacturing teams improve DFM decisions, compare machine capability, and control dimensional risk from prototype through production.