Raise3D, the manufacturer of professional FDM 3D printers since 2014 that introduced a resin solution in 2023, now enters another new technology market: selective laser sintering (SLS).
The company’s first SLS solution is called RMS220. It’s a nylon- and TPU-capable machine boasting an impressive 2.2 liter-per-hour print rate and a 220 x 220 x 350 mm build volume.
Equipped with a 75-watt high-power fiber laser and a four-zone self-calibrating infrared heating system, Raise3D says the printer ensures “reliable part quality and consistent material properties across batches.”
The modular build chamber, paired with a quick 45-minute powder-change system, minimizes downtime between jobs.
RMS220 achieves ± 0.2 mm dimensional accuracy, the company says, and supports a minimum wall thickness of 0.5 mm (with PA11), enabling fine detail control and minimizing warping.
There’s been a simmering desire in the 3D printing market for an affordable SLS solution. When Formlabs launched its Fuse in 2017 for around $10,000, it was a eye opener for the $60K+ machine makers out there and remains the most popular benchtop option. When start-up Micronics announced an SLS for under $3,000 last June, it was another shock to the market, resulting in the company’s quick acquisition by Formlabs.
Now, will the Raise3D RMS220 delight aspiring SLS owners with its affordability? As of press-time, Raise3D says the printer will retail for €27,000 in the EU. That would be about $29,500, but U.S. tariffs on Chinese machines could change pricing in the U.S. Let’s look at how it stacks up in the benchtop SLS sector in other ways.
The standout feature appears to be the machine’s build speed, which can be a nebulous figure when it comes to SLS machines. Companies report either liter-per-hour figures or mm-per-hour, which are apples and oranges when trying to compare especially since it depends on what’s being printed. The infill rate makes a difference as does the material. Raise says its 2.2 liter-per-hour print speed is at 20% fill density. By comparison, the 3D Systems SLS 380 ($200,000+) boasts a print speed of 2.7 l/h, but doesn’t specify infill or materials. In any case, on the surface of it, the RMS220’s 2.2 liter eclipses the 0.5 liter figure from Formlabs’ Fuse 1+30W and even the EOS’ Formiga P 110 Velocis FDR also at 0.5 l/h.
The laser power for this small benchtop unit at 75 watts appears to be twice that of most benchtop competition, even topping 3D Systems’ SLS 300.
Alongside the RMS220, Raise3D is launching a depowdering and sintering solution. Like its launch of post-processing machines with its resin 3D printer, the company is following its strategy to offer a complete production solution. Missing, though, at the moment are details on the software, other than claims that it’s easy to use.
As Raise3D releases more details, we’ll be sure to bring them to you.
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