Made to order
- US installation commissioning and operator training included
- Validated parameters a parameter set for your first production alloy
Farsoon FS191M LPBF Metal 3D Printer – Cylindrical Build with Heated Plate | ø7.5×7.8 in / ø191×199 mm
The Farsoon FS191M is a metal LPBF 3D printer with a ø7.5×7.8 in / ø191×199 mm build envelope, running a single 500 W fiber laser.
- ✓ ø7.5×7.8 in — build cylinder
- ✓ ø7.5×7.8 in / ø191×199 mm build envelope
- ✓ Open platform — full access to process parameters, qualify your own alloy
- ✓ Lead time: built to order — confirmed at quote
Installation and commissioning in the USA: facility and gas planning, start-up and operator training by our US service team.
What your process engineer actually checks
A research platform, not a cut-down production machine
Two cylinder sizes, a plate that heats past 400 °C, high-resolution melt pool monitoring and unlocked parameters. The specs that matter in R&D are the ones production machines leave out.
An applications engineer on the line
Not a ticket queue — engineers who run LPBF in production in-house at AO Metal. Alloy qualification, parameter development, troubleshooting. Sub-4h reply, NDA on request.
The Farsoon FS191M is a cylindrical-build metal LPBF system aimed at research and materials development. A ø7.5×7.8 in / ø191×199 mm cylinder, an optional ø80×80 mm small cylinder with a plate heated above 400 °C, high-resolution melt pool monitoring and fully open parameters.



Why engineers choose the FS191M
Four things your process engineer will check first.
Plate heating above 400 °C
With the optional ø80×80 mm small cylinder the build plate heats past 400 °C. That is the configuration for crack-prone and refractory alloys that will not survive a cold plate.
Two cylinder sizes on one machine
ø191×199 mm for parts, ø80×80 mm for powder trials. A small cylinder means a usable experiment on a few hundred grams instead of a full plate of expensive powder.
High-resolution melt pool monitoring
Layer-by-layer melt pool data is what turns a failed build into a result you can publish. The FS191M records it at high resolution rather than logging a pass/fail.
Open platform, support reduction
Machine parameters are unlocked and the support reduction system cuts what you have to remove afterwards — on research parts, post-processing is often the real cost.
How we deliver and support it
What happens between the purchase order and your first qualified part.
Scope the cell
We size the configuration against your part mix, then plan power, argon or nitrogen supply and extraction with your facilities team. Machine envelope is 43.9×33.3×78.9 in / 1116×845×2005 mm. The US transformer ships with the machine.
Install and train in the USA
Commissioning and operator training by our US service team. First builds are run together, so your operators hand over parts rather than a checklist.
Parameters, spares, engineer
Validated parameter sets for your alloy, US-held spares, and an applications engineer who has run LPBF in production in-house at AO Metal. Sub-4h reply, NDA on request.
What the FS191M is built for
Cylindrical-Build Metal LPBF for R&D and High-Temperature Work. The FS191M runs a single 500 W fiber laser over a ø7.5×7.8 in / ø191×199 mm build envelope. Full specifications are in the Specifications tab below.
Powder handling and workflow

Qualified materials
Farsoon lists 316L, Ti6Al4V and AlSi10Mg for the FS191M. Because the platform is open, a grade outside that list is a parameter development project rather than a dead end, and one we can run with you. The alloys we stock are lot-certified and held in the USA.
Typical applications
Where FS191M systems are actually running.
A production case, in numbers

| Tungsten lattice radiator blocks | Figure |
|---|---|
| Machine | FS191M |
| Structure | Open-cell lattice and honeycomb radiator blocks |
| Why this frame | Heated plate above 400 °C and open parameters for refractory work |
| Cylinder | ø7.5×7.8 in / ø191×199 mm |
Refractory work of this kind is exactly what the heated small cylinder is for.
Not sure the FS191M is the right frame size?
Three Farsoon LPBF platforms either side of it.
Production frameFarsoon FS273M10.8×10.8×14.0 in, single or dual 500 W, very wide alloy list.View printer →
Larger productionFarsoon FS301M12.0×12.0×16.1 in with full dual-laser coverage.View printer →
Why source the FS191M through Additive Plus
- US sales, installation, commissioning and operator training by our own service team.
- Applications engineering from a team that runs LPBF in production in-house at AO Metal — parameter development, not a ticket queue.
- Lot-certified metal powders stocked in the USA for the alloys this machine runs.
- Leasing and financing available on capital equipment.
- Print a paid benchmark part in California before you commit to a system.
- Response under 24 hours · 200+ AM systems delivered across 23 countries.
| Brand | Farsoon Technologies |
| External Dimensions (L×W×H) | 43.9×33.3×78.9 in / 1116×845×2005 mm |
| Build Volume | ø191×199 mm (ø7.5×7.8 in) |
| Layer thickness | 0.0008–0.0039 in / 0.02–0.1 mm |
| Laser Type | Fiber Laser, 1×500W |
| Inert Gas Protection | Argon/Nitrogen |
| Operating system | 64 bit Windows 10 |
| Software | BuildStar, MakeStar® |
| Data File Format | STL |
| Key Software Features | Open machine key parameters, real-time build parameter modification, three-dimensional visualization, diagnostic functions |
| Operating Ambient Temperature | 71.6-82.4 °F / 22-28 °C |
| Material | 316L, AlSi10Mg, Ti-6Al-4V |
| Technology | Metal LPBF |
| Printing Materials | Metal Powders |
Send your STL and we print a paid benchmark part on a Farsoon metal LPBF system in California, with the parameter set and the cost per part written up.
Other products teams run alongside Farsoon FS191M LPBF Metal 3D Printer – Cylindrical Build with Heated Plate | ø7.5×7.8 in / ø191×199 mm
The Farsoon Flight HT601P-4 is a large-format quad-fiber SLS 3D printer — a 600 × 600 × 600 mm cubic build, four 300 W fiber lasers (1,200 W total) scanning to 20 m/s, and a 220 °C chamber for engineering polymers.
- ✓ Cubic 600 mm build · quad 300 W fiber lasers for speed and detail
- ✓ Efficiency and Quality scan modes · adjustable laser spot size
- ✓ Lead time: configured to order — US install, training and support
Made to order
· Lead time: configured to order — request a build slot. US installation and operator training included.
Large-format pellet extrusion 3D printer — 71×47×43 in / 1800×1200×1100 mm enclosed build, raw polymer granules, 1–8 mm nozzle selection, up to 15 kg/h. Optional 450°C high-temp nozzle for PEI+CF and engineering compounds. Material cost 5–10× lower than equivalent filament.
- ✓ Pellet feedstock — 5–10× lower material cost vs. filament at the same polymer
- ✓ 71×47×43 in / 1.8×1.2×1.1 m enclosed build — ~6× the FGF800, runs on single-phase 220 V
- ✓ Lead time: 8–10 weeks — configured to order, installed and trained on-site
Made to order
· Ships in 8–10 weeks from order placement. Need it sooner? Talk to a specialist.
Compact industrial SLA. Marble frame. Vacuum recoating. A high-performance platform for footwear lasts, dental models, engineering prototypes and patterns — without stitching or Z-seam artifacts.
- ✓ 24×24×16 in / 600×600×400 mm build chamber — nests a full tray of lasts or arches per run
- ✓ Solid-state 355 nm Nd:YVO4 laser · 0.075–0.8 mm variable beam · 15.0 m/s max scan
- ✓ Full-marble machine frame — thermal stability for ±0.1 mm part accuracy
- ✓ Lead time: 8–10 weeks — on-site install, calibration & operator training included
Made to order
· Ships in 8–10 weeks from order placement. Need it sooner? Talk to a specialist.
Every laser parameter is yours — no cartridges, no annual licence, no locked recipes. A test build costs about 71 g of 316L. Fully open material system: the machine runs any metal powder you qualify, and we supply validated parameters for the standard alloys. Desktop LPBF, Ø30 × 60 mm (1.2 × 2.4 in) build, 200 W laser (300 W optional), 120 V. Designed and built in the USA. From $59,000 · 8–14 weeks. Installation and commissioning in the USA: facility and gas planning, start-up and operator training by our US service team.
Made to order
· 8–14 weeks
Large-format, high-throughput SLS system: dual 100 W CO₂ lasers drive build rates up to 15 L/h across a metre-scale 39.4×19.7×17.7 in / 1000×500×450 mm build, with a 220 °C chamber for high-performance polymers. Open platform, modular build-station architecture. Sold, installed and supported in the US by Additive Plus.
- Metre-scale build — 1000×500×450 mm for large parts and high-nest batches.
- Dual CO₂ · up to 15 L/h — high-volume production; 220 °C chamber, broad materials.
- Lead time: configured to order — US install, training & validated profiles from California.
Made to order
· Lead time: configured to order — request a build slot. US installation of module and build station, training and process support included from California.
Made to order
· 8–14 weeks
Large-format industrial SLA. Marble frame. Vacuum recoating. Built for extended single-piece parts — long automotive patterns, full-scale trim, large tooling — without stitching or Z-seam artifacts.
- ✓ 57×32×24 in / 1450×800×600 mm build chamber — a long automotive pattern in one run
- ✓ Solid-state 355 nm Nd:YVO4 laser · 0.075–0.8 mm variable beam · 15.0 m/s max scan
- ✓ Full-marble machine frame — thermal stability for ±0.1 mm part accuracy
- ✓ Lead time: 8–10 weeks — on-site install, calibration & operator training included
Made to order
· Ships in 8–10 weeks from order placement. Need it sooner? Talk to a specialist.
Large-format industrial SLA. Marble frame. Vacuum recoating. Built for shoe molds, automotive patterns, dental models, and architectural forms — without stitching or Z-seam artifacts.
- ✓ 450 × 450 × 350 mm build chamber — fits a standard shoe last or full fascia panel in one run
- ✓ Solid-state 355 nm Nd:YVO4 laser · 0.08–0.8 mm variable beam · 15.0 m/s max scan
- ✓ Full-marble machine frame (720 kg) — thermal stability for ±0.1 mm part accuracy
- ✓ Lead time: 8–10 weeks — on-site install, calibration & operator training included
Made to order
· Ships in 8–10 weeks from order placement. Need it sooner? Talk to a specialist.What our customers say
“Harry and team were professional, effective communicators as we set up the order, then they executed quickly and produced an amazing product for us at a very competitive price. Am looking forward to our next print w Additive Plus!”
“Great 3D printing service and the resin parts look super smooth and clean. Really happy with how everything turned out!”
“Harry was very professional and helped me out with my 3D printing needs and explained what options I have in terms of filaments such as PEEK. Highly recommended.”
“I needed a 3D enclosure printed urgently in a specific time period, they did great!”
Common questions
Don't see yours? Email [email protected] — NDA on request, typical reply within 4 hours.
Which alloys are qualified for the Farsoon FS191M?
What does the heated build plate on the FS191M actually do for difficult alloys?
Is the FS191M an open system, or are we locked to vendor parameters?
What part size does the FS191M handle, and what fits in one build?
What does installation and training in the USA involve for the FS191M?
How does the FS191M compare with the other Farsoon metal platforms?
Can we test the FS191M before committing to a purchase?
Place your order, or talk to an engineer first
Order Farsoon FS191M LPBF Metal 3D Printer – Cylindrical Build with Heated Plate | ø7.5×7.8 in / ø191×199 mm direct, or talk to materials engineer
Get a quote — response in under 24h
Tell us about your part. A real applications engineer reviews every quote — no contact-form roulette. NDA on request, free DfAM review for first-time customers.
Talk to an applications engineer
30 minutes with the team that designs AO Metal and runs our print services. We'll review your spec, recommend a process, and send a tailored proposal — installation, training, service included.
Book a demo with the team that built it
See the equipment running on a real part — in our L.A. shop or remotely. The engineer on the call is the one who'll support the machine after it ships.
Free DfAM review on your first order.
Real engineering review by an applications engineer — not an automated check. Claim it once per company.
- Engineer-reviewed quote within 24 hours
- Free DfAM & material recommendation
- NDA on request before file review
Claim your offer
Takes 30 seconds. We'll reply within 24h with your claim code and a quote-ready link.