Key takeaways
- A benchtop SLS printer like Formlabs' Fuse 1+ 30W has a 165 × 165 × 300 mm build volume — enough for small and medium engineering parts, but it still needs a 30 % refresh rate for Nylon 12 powder: 30 % fresh powder every build, even when recycling old powder.
- According to Protolabs Network, an industrial DMLS/SLM machine averages around 550,000 USD and can reach 2 million USD — at least as much as an industrial CNC machine, often more, by their comparison.
- Metal extrusion is a far cheaper entry into metal printing, at around 140,000 USD including post-processing equipment per the same source — still an order of magnitude above benchtop SLS.
- Protolabs states that many desktop FDM or SLA printers cost under 10,000 USD, while even the cheapest metal printer costs more than a CNC machine — the gap is in orders of magnitude, not a straight line.
- ZORVA doesn't sell metal powder or metal printing services. That part of this article is here so you understand the investment threshold, not to sell anything.
"Buy a machine or outsource?" usually has a quick answer for FDM: desktop printers are cheap, and outsourcing only makes sense when you need a material or tolerance a desktop printer can't deliver. With SLS, and especially metal printing, the question gets much heavier, because the price gap between buying and outsourcing is no longer counted in millions of VND but in orders of magnitude.
Benchtop SLS: a lower entry point, but running costs don't disappear
The Formlabs Fuse 1+ 30W is one of the most accessible industrial SLS printers on the market, with a 165 × 165 × 300 mm build volume. That's a far lower entry point than large industrial SLS systems, but "a cheaper machine" doesn't mean each build is correspondingly cheaper.
In other words, the real cost of a benchtop SLS printer has three layers: the machine, the powder (fresh and recycled at the right refresh rate), and post-processing equipment — a unit like the Fuse Sift to sieve and recycle powder safely, separate from the normal work area, because fine nylon powder is still respirable dust that needs controlling, on the same principles as 3D printing fumes and ultrafine particles.
Metal printing: a different order of investment, not just a different number
If plastic SLS is a step up from FDM, metal printing is a different level altogether. In the public guidance of Protolabs Network — an on-demand manufacturer running SLS, DMLS and other technologies — the company makes its own comparison: a metal printer costs at minimum as much as a CNC machine tool, and often more, while many desktop FDM or SLA printers cost under 10,000 USD.
| Technology | Reference machine price | Note |
|---|---|---|
| Metal extrusion | ~ 140,000 USD, including post-processing equipment | The cheapest entry into metal printing; suits prototyping and small batches |
| Metal binder jetting | ~ 400,000 USD | Needs a separate sintering furnace after printing |
| DMLS / SLM (laser sintering/melting) | 550,000 – 2,000,000 USD | The average price range Protolabs Network publishes |
Those three figures don't include running costs: inert gas (argon or nitrogen) to stop metal powder oxidising during the build, systems to filter and handle metal powder — far more flammable than nylon powder — a sintering chamber or post-build heat-treatment furnace, and CNC machines to finish mating surfaces. That's why Protolabs Network describes metal printing as economically sensible only when tied to a performance or operational gain big enough to pay for it — not a per-gram material price comparison.
When outsourcing almost always wins
- Low or irregular volume. A DMLS machine costing hundreds of thousands to millions of USD only makes sense running near capacity year-round. If you need a few parts a quarter, depreciation per part is enormous.
- You need several technologies. According to Protolabs Network, a service bureau typically has SLA, SLS, DMLS, MJF and more on hand — buying all of them yourself so you can pick the right one per part is no small cost.
- No operating experience. Protolabs says it plainly: its facilities have years of experience and thousands of builds behind knowing which settings suit which material. For a team that has never run industrial machines, the learning curve is long and costly before parts come out to spec.
- You need specialist post-processing. Vapour smoothing, sintering and post-build heat treatment of metal all need dedicated equipment a small workshop can hardly justify for regular use.
When buying a benchtop SLS printer makes sense
This threshold is much lower than metal, and for a benchtop SLS like the Fuse 1+ 30W, the sums look more like buying a mid-size industrial FDM printer: if your nylon powder volume is steady enough that the refresh rate doesn't waste stock, and your parts fit the 165 × 165 × 300 mm volume, buying can pay back in a reasonable time. If parts need tighter tolerances, a speciality powder Formlabs doesn't make, or exceed the chamber, outsourcing is still more practical than expanding your own line.
The question isn't "is metal printing better". It's whether the machine would run near capacity in your hands.
A compact way to decide
- 01
Estimate print volume per month, not per job
A machine only pays back when it runs steadily. A few parts a quarter should almost always be outsourced, whatever the technology.
- 02
Check the part fits the build volume
With benchtop SLS, 165 × 165 × 300 mm is a hard limit for the Fuse 1+ 30W. Larger parts need another machine or must be split and assembled.
- 03
Count recurring material cost, not just the machine price
For SLS, that's the mandatory fresh powder per build at the refresh rate. For metal, it's inert gas, metal powder, and energy for the sintering or heat-treatment furnace.
- 04
Ask a service which technologies it has, not just the price per part
A bureau with SLA, SLS, DMLS and MJF can suggest a different technology better suited to your part — something a single machine of your own can't do.
- 05
If you do invest, start with benchtop SLS before thinking about metal
The capital gap between benchtop SLS and industrial metal printing is much larger than the gap between FDM and SLS — don't merge two decisions into one.
Frequently asked
How much does a benchtop SLS printer cost compared with an industrial FDM printer?
Considerably more, though far less than large industrial SLS or metal printing. Formlabs doesn't publish a fixed public price for the Fuse 1+ 30W on its main product page; contact the maker or a distributor for a current quote.
What is refresh rate, and why does it matter for cost?
Refresh rate is the share of fresh powder required in each build; the rest may come from previously printed, sieved powder. Formlabs recommends 30 % for Nylon 12 Powder on the Fuse series. It's a recurring cost per build, not a one-off like the machine price — it belongs in the cost of every part, the way the cost article does it for FDM filament.
Is metal printing more expensive than CNC?
By Protolabs Network's public comparison — from a company that runs both technologies — a metal printer costs at least as much as a CNC machine tool, and often more. That's why most low-volume metal printing needs should be outsourced rather than bought.
Is there a cheaper way to start with metal printing?
Metal extrusion (printing like FDM with a filament containing metal powder, then sintering) is the cheaper entry into metal printing, and its post-processing equipment still costs far less than DMLS or SLM. It's still a significant investment, and the mechanical properties after sintering need confirming by the equipment supplier for the exact material you plan to use.
Does ZORVA sell materials for SLS or metal printing?
ZORVA focuses on FDM filament and some resin/powder materials for plastic printing; it doesn't make or distribute metal powder and doesn't run a metal printing service. This article only aims to help you read the investment threshold correctly before finding the right supplier.