For years, if you wanted a compact selective laser sintering (SLS) 3D printer, the conversation usually came down to Formlabs and Sinterit. Now there’s another machine competing for that market: the Raise3D RMS220.
Raise3D has spent more than a decade building FDM 3D printers, but the RMS220 marks its entry into SLS technology. On paper, it competes directly with the Formlabs Fuse 1+ 30W, offering a larger build chamber and a more powerful laser for a relatively similar investment.
But there’s a catch. Bigger chambers and more laser power don’t automatically translate into lower production costs. And depending on what you’re manufacturing, the better investment might actually be the considerably larger Formlabs Fuse X1.
Let’s compare all three machines across build volume, speed, packing density, materials, powder consumption, facility requirements, and total system cost.
Raise3D RMS220 vs. Formlabs Fuse 1+ vs. Fuse X1: Specifications at a Glance
Before getting into the details, here’s how the three SLS systems compare based on manufacturer specifications and pricing discussed as of November 2026.
| Specification | Formlabs Fuse 1+ 30W | Raise3D RMS220 | Formlabs Fuse X1 |
|---|---|---|---|
| Build Volume | Approx. 8.2 L | Approx. 17 L | Approx. 61.2 L |
| Laser Power | 30 W | 75 W | 120 W |
| Rated Powder Throughput | 1.5 kg/day | 3 kg/day currently; up to 5 kg/day with planned feeding module | 8 kg/day |
| Published Packing Density | 30% or higher | 20% reference condition | 30% or higher; up to 48% by mass |
| Standard Materials | 7 | 8 | PA12 initially; additional materials in development |
| Electrical Requirements | 120 V, 15 A | 230 V, 15 A | Hardwired 50 A single-phase circuit |
| Approximate Complete System Price | $57,000 | $60,000 | $150,000–$160,000 |
| Best Application | General-purpose SLS and versatile production | Larger parts within a compact SLS budget | Higher-volume production |
These figures are useful starting points, but they’re not a substitute for evaluating actual parts. Published throughput, packing density, and equipment pricing can depend on configuration, material, and operating conditions.
SLS Build Volume: Does the Raise3D RMS220’s Larger Chamber Matter?
One of the biggest selling points of the Raise3D RMS220 is its build volume. At approximately 8.7 × 8.7 × 13.8 inches, the machine offers around 17 liters of build space.
Compare that to the Formlabs Fuse 1+, with its approximately 6.5 × 6.5 × 12-inch chamber and 8.2-liter volume. The RMS220 provides roughly twice the available chamber space.
That’s a meaningful advantage if your parts are just a little too large for the Fuse 1+. Those extra inches can eliminate the need to split a long component into multiple sections, print them separately, and assemble them afterward.
However, the Fuse X1 changes the conversation entirely. At approximately 61.2 liters, it has more than three and a half times the chamber volume of the RMS220.
If you’re regularly splitting components because they exceed compact SLS build dimensions, moving to the X1 could solve the problem at a much larger scale.
Bottom line: The RMS220 has a genuine size advantage over the Fuse 1+. But if the objective is to eliminate build-size restrictions for larger production parts, the Fuse X1 deserves serious consideration.
SLS Laser Power and Printing Speed: 30W vs. 75W vs. 120W
Laser power is one of the first specifications people compare when shopping for an SLS printer. It matters, but the number alone doesn’t tell you how many finished parts you’ll produce in a day.
Formlabs Fuse 1+ 30W: Approximately 1.5 kg Per Day
The Fuse 1+ uses a 30-watt fiber laser, with manufacturer-rated throughput of approximately 1.5 kilograms of powder per day. It’s designed for accessible, professional SLS production without the infrastructure requirements of larger industrial machines.
Raise3D RMS220: Approximately 3 kg Per Day
The RMS220 uses a 75-watt laser and is rated at approximately 3 kilograms per day in its current configuration. Raise3D also references throughput of up to 5 kilograms per day with an additional feeding module planned for 2027.
At its current rated speed, the RMS220 offers roughly twice the daily powder throughput of the Fuse 1+. That’s a significant advantage on paper.
Formlabs Fuse X1: Approximately 8 kg Per Day
The Fuse X1 uses a 120-watt laser and carries a manufacturer-rated throughput of approximately 8 kilograms per day.
That’s more than two and a half times the RMS220’s current published rate. Even compared against the RMS220’s planned 5 kg/day configuration, the X1 maintains a substantial throughput advantage.
Of course, these are manufacturer-rated figures, not guaranteed production results. Real throughput varies with materials, part geometry, packing strategy, and workflow efficiency.
SLS Packing Density: The Specification That Really Changes Production Economics
Here’s where things get interesting.
When evaluating SLS machines, it’s easy to focus on laser wattage and chamber dimensions. But packing density can have an enormous effect on how many parts you actually produce per build.
In SLS printing, unsintered powder supports the surrounding parts. That allows multiple components to be nested throughout the three-dimensional build chamber.
The more efficiently you pack those parts, the more finished components you can potentially produce from each print cycle.
How the Three SLS Printers Compare on Packing Density
Formlabs references packing densities of 30% or higher for the Fuse 1+ and Fuse X1, with the X1 reaching up to 48% by mass in specified conditions.
Raise3D, meanwhile, publishes its RMS220 throughput at a 20% packing-density reference condition. That doesn’t necessarily mean the machine is limited to 20%. Rather, the published throughput figure uses that density, and a directly comparable maximum packing-density specification isn’t provided in the figures being compared.
This distinction matters. You can’t automatically assume that a larger build chamber produces more usable parts per day unless you know how those parts can be nested.
Why Part-Level Cost Estimates Matter More Than Brochure Numbers
Consider a production run of 200 identical nylon components. A machine with a larger chamber might accommodate more parts per build, but the results also depend on spacing, orientation, thermal behavior, cycle times, and powder consumption.
The most useful comparison is not simply liters of build volume or kilograms of powder processed per day. It’s finished parts per build, cost per part, and total production time.
Before purchasing any industrial SLS printer, send representative CAD files to the equipment supplier. Ask for actual build-nesting estimates, projected cycle times, and powder costs.
Those calculations can reveal differences that aren’t obvious from the specification sheets.
SLS Materials Comparison: Nylon 12, Nylon 11, Carbon Fiber, TPU, and Open Powders
Material compatibility is another major consideration, particularly for shops manufacturing a variety of functional parts.
Compact SLS systems make powder changes more practical than many large industrial production platforms. You probably don’t want to change material every day, but flexibility can be valuable for prototyping, engineering services, and low-volume manufacturing.
Raise3D RMS220 Materials
The RMS220 offers eight powder options in the lineup discussed here, including:
- PA12
- Glass-filled PA12
- PA11
- PA Next
- Glass-filled PA Next
- Three TPU formulations
Raise3D also offers an open material license for third-party powders. This is especially valuable for applications requiring specialized material properties or a particular qualified powder formulation.
One limitation is color availability. The Raise3D lineup discussed here is predominantly black, with a white TPU option.
Formlabs Fuse 1+ Materials
The Fuse 1+ supports seven established materials:
- Nylon 12
- Nylon 12 Tough
- Nylon 12 White
- Nylon 12 GF
- Nylon 11
- Nylon 11 CF
- TPU 90A
Two materials stand out.
Nylon 12 White gives manufacturers a white base material that can be dyed or finished for color-specific applications. That’s useful for product development, enclosures, consumer-facing parts, and customized components.
Nylon 11 CF brings carbon-fiber reinforcement to applications where stiffness and dimensional stability are priorities. It’s a notable option for engineering components, fixtures, and functional production parts.
The RMS220 material lineup described here does not currently include an equivalent carbon-fiber nylon powder.
Material Changeover Times
Raise3D quotes approximately 45 minutes for a material changeover on the RMS220.
For the Fuse 1+, the estimated changeover is approximately one to two hours, including thorough cleaning between powders.
For businesses regularly switching between flexible, rigid, and filled materials, that time difference can be meaningful.
Formlabs Fuse X1 Materials
The Fuse X1 is positioned differently. It’s designed primarily for sustained production rather than frequent powder changes.
Nylon 12 is the initial material discussed, with Nylon 11, glass-filled nylon, and TPU planned for further qualification and rollout through late 2026 and 2027.
For high-volume manufacturing, maintaining one material across repeated production cycles is often more practical than frequently changing powders.
SLS Powder Refresh Rates and Material Costs
Here’s another factor that directly affects operating expenses: powder refresh rate.
SLS doesn’t fuse every gram of powder in the chamber. The unused powder can often be recovered, blended with fresh material, and reused in subsequent builds.
The refresh rate describes the proportion of fresh powder introduced into that blend.
Formlabs Fuse 1+ Powder Refresh
For Nylon 12, the referenced Formlabs refresh rate is approximately 30%.
In other words, the reusable powder blend contains roughly 30% fresh powder and 70% recovered powder, subject to the manufacturer’s recommended workflow.
High packing density can also change the economics. When a large proportion of the available powder is converted into actual parts, there may be relatively little recovered powder left to reuse.
Raise3D RMS220 Powder Refresh
Raise3D publishes two different reference conditions for the RMS220:
- 30% fresh powder with nitrogen operation
- 50% fresh powder in open-air operation
With nitrogen, the published Nylon powder refresh rate is comparable to the Formlabs figure discussed above. Without nitrogen, the RMS220 requires a higher proportion of fresh powder.
How Much Does SLS Nylon 12 Powder Cost?
As of November 2026, the prices discussed in this comparison are approximately:
- Raise3D PA12: $60 per kilogram
- Formlabs Nylon 12: $99 per kilogram at standard pricing
- Formlabs Nylon 12: As low as $45 per kilogram with qualifying bulk purchases
On standard pricing, Raise3D offers a lower per-kilogram powder cost. However, Formlabs bulk pricing can reverse that comparison.
For a meaningful operating-cost analysis, calculate the total amount of fresh powder consumed, the number of acceptable finished parts, and the cost of labor and post-processing.
The least expensive powder isn’t necessarily the lowest-cost production process.
Facility Requirements: Which SLS Printer Is Easiest to Install?
Industrial equipment purchases don’t end with the machine price. Power, compressed air, nitrogen, floor space, and equipment handling can all affect installation costs.
Formlabs Fuse 1+: Standard 120V Power
One of the Fuse 1+’s biggest advantages is its relatively straightforward installation.
The machine runs on a standard 120V, 15A electrical circuit, uses ambient air for printing, and weighs approximately 265 pounds.
There’s no requirement for an external nitrogen system or shop compressed air to operate the printer itself.
That makes it especially attractive for engineering offices, smaller manufacturing facilities, and businesses introducing SLS technology for the first time.
Raise3D RMS220: 230V Power and Compressed Air
The RMS220 requires approximately 230V at 15A, meaning many facilities will need an appropriate dedicated higher-voltage electrical circuit.
It also weighs approximately 625 pounds, so unloading, positioning, and installation may require additional equipment.
The integrated nitrogen generator is a useful design feature, but it still requires a suitable compressed-air supply. The associated blasting station also needs compressed air.
That doesn’t make the RMS220 difficult to install in an equipped manufacturing facility, but it’s a more involved installation than the Fuse 1+.
Formlabs Fuse X1: Production-Level Infrastructure
The Fuse X1 requires a hardwired 50A single-phase electrical connection along with nitrogen infrastructure.
It’s a much larger installation, but the machine is designed to move through standard-sized doorways, reducing some of the facility modifications commonly associated with industrial additive equipment.
Even so, buyers should plan for electrical work, material handling, post-processing, and appropriate manufacturing floor space.
Raise3D RMS220 vs. Formlabs Fuse Pricing: What Does a Complete SLS Setup Cost?
Comparing printer-only prices can be misleading. A functional SLS workflow also requires powder handling, cleaning, and post-processing equipment.
Here’s how the complete systems compare using the approximate November 2026 pricing discussed here.
Raise3D RMS220 Complete Package: Approximately $60,000
- RMS220 printer with one build unit: $35,000
- Cleaning station: $10,000
- Second build unit: $5,000
- Blasting station: $10,000
Total estimated investment: $60,000 before powder, installation, and other applicable costs.
Formlabs Fuse 1+ Complete Package: Approximately $57,000
A comparable Fuse 1+ package, including the printer, Fuse Sift, blasting equipment, and an additional build chamber, comes in at approximately $57,000.
The two compact systems are therefore priced within a few thousand dollars of each other.
Raise3D’s strongest value proposition is its substantially larger chamber at a relatively similar total price.
Formlabs Fuse X1 Complete Package: Approximately $150,000–$160,000
The Fuse X1 printer itself is approximately $85,000.
A complete system with the supporting conveyor, blasting, nitrogen, and powder-handling equipment moves the total investment into the approximately $150,000 to $160,000 range.
That’s a significant jump from either compact system.
However, the X1 offers dramatically greater chamber capacity and rated throughput, making it worth evaluating when production volumes justify the additional investment.
First-Year SLS Printer Risk: Why Machine Maturity Matters
There’s one important factor you won’t always find on a manufacturer’s specification sheet: the maturity of the platform.
Formlabs has shipped more than 3,000 Fuse systems since the product line launched, according to the figure cited in this comparison.
That installed base represents years of real-world operating experience, software refinement, hardware updates, and troubleshooting knowledge.
The Raise3D RMS220 began shipping in 2026. As a newer platform, its long-term reliability record is still developing.
That’s not necessarily a reason to avoid the machine. Every industrial platform has an early adoption period.
But buyers should understand the difference between investing in a relatively new technology platform and selecting a machine with thousands of installations already operating in the field.
For production environments where downtime can delay customer orders, the maturity of the service ecosystem can matter just as much as laser power.
Which SLS 3D Printer Should You Buy in 2026?
Each of these machines offers a legitimate advantage, but they serve different manufacturing requirements.
Best Overall Compact SLS Printer: Formlabs Fuse 1+ 30W
If your parts fit comfortably inside the Fuse 1+ build chamber, it’s the strongest all-around choice for many businesses.
You get straightforward installation, seven established materials, white and carbon-fiber-reinforced nylon options, and a mature installed base.
It’s also relatively economical to expand capacity by adding another printer to an existing Fuse workflow.
For engineering firms, service bureaus, product-development teams, and manufacturers entering professional SLS, the Fuse 1+ offers a compelling balance of capability, versatility, and operational simplicity.
Best Compact SLS Printer for Larger Parts: Raise3D RMS220
The RMS220 makes the most sense when build volume is your limiting factor.
If parts are too large for the Fuse 1+ but a full Fuse X1 investment isn’t justified, the RMS220 occupies an interesting middle ground.
Its 17-liter chamber, 75-watt laser, and open material license are attractive features.
Just be sure to evaluate packing performance, actual throughput, facility requirements, and the relative maturity of the platform.
Best SLS Printer for Higher-Volume Production: Formlabs Fuse X1
If you’re already running compact SLS printers continuously and struggling to keep up with production demand, the Fuse X1 is the machine worth investigating.
Its approximately 61-liter chamber and rated 8 kg/day throughput place it in an entirely different production category.
Yes, the upfront investment is substantially higher. But when production demand is high enough, throughput and cost per finished part become much more important than the initial purchase price.
Final Verdict: Compare the Parts, Not Just the Printers
The Raise3D RMS220 is a serious new competitor in compact industrial SLS. Its larger build chamber and higher rated laser power make it an appealing alternative to the Fuse 1+.
But for most applications that fit within its chamber, the Formlabs Fuse 1+ remains a particularly attractive choice thanks to its material ecosystem, installation simplicity, and mature platform.
For larger production runs, the Formlabs Fuse X1 deserves consideration despite its higher cost.
Ultimately, the right industrial SLS printer isn’t necessarily the one with the biggest laser or the largest chamber.
It’s the one that can consistently produce your specific parts at the lowest practical cost, with the reliability and material performance your operation requires.
Get an SLS Production and Cost-Per-Part Estimate
Before investing $60,000 or more in SLS equipment, get a realistic estimate using your actual CAD files.
At Vision Miner, we help manufacturers evaluate industrial 3D printing equipment based on their applications, materials, production targets, and facility requirements.
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Frequently Asked Questions About SLS 3D Printers
Is the Raise3D RMS220 better than the Formlabs Fuse 1+?
The RMS220 offers a larger build chamber and higher rated powder throughput. However, the Fuse 1+ offers simpler installation, established material options including carbon-fiber nylon and white nylon, and a more mature installed base. The better choice depends on part size, materials, production needs, and costs.
How much does a complete SLS 3D printing system cost?
Based on the November 2026 figures discussed here, comparable complete Raise3D RMS220 and Formlabs Fuse 1+ configurations cost approximately $60,000 and $57,000, respectively. A complete Formlabs Fuse X1 installation is approximately $150,000 to $160,000.
What is packing density in SLS 3D printing?
Packing density describes how much of the available build chamber is occupied by parts. Higher effective packing density can improve production efficiency by allowing more components to be manufactured in each print cycle.
Does the Raise3D RMS220 require nitrogen?
The RMS220 supports nitrogen operation through its integrated nitrogen generator, which requires compressed air. Raise3D references a 30% fresh-powder refresh rate with nitrogen and 50% in open-air operation under the conditions discussed in this comparison.
Which SLS 3D printer is best for production manufacturing?
The Fuse 1+ is well suited to smaller-scale production and mixed-material workflows. The RMS220 offers more room for larger components. The Fuse X1 is designed for higher-volume SLS production with substantially greater chamber capacity and throughput.