GF Machining Solutions Metal Additive Manufacturing

GF Machining DMP Flex 350

$450,000 – $650,000 Updated 2026-03-19

Key Specifications

Repeatability

Δx (3σ) = 60 μm, Δy (3σ) = 60 μm, Δz (3σ) = 60 μm

Build Volume

275 x 275 x 420 mm (includes build plate)

Laser Type

Fiber laser, 1 x 500 W

Laser Wavelength

1,070 nm

Layer Thickness

Adjustable, min 5 µm; typical 30, 60, 90 µm

Minimum Feature Size

200 µm

Overview

The GF Machining Solutions DMP Flex 350 is a single-laser metal 3D printing system built on the proven DMP platform co-developed with 3D Systems. Featuring a 500 W fiber laser and a 275 x 275 x 420 mm build volume, the DMP Flex 350 is designed for R&D, prototyping, and low-volume production of metal parts in aerospace, medical, and industrial applications.

The DMP Flex 350 operates in a sealed, low-oxygen environment (< 25 ppm O2) that maintains consistently high part quality while minimizing powder degradation. This vacuum-based atmosphere management is a key differentiator from competitive systems that use inert gas flow, enabling better material properties and more efficient powder recycling across build cycles.

With minimum layer thickness of 5 µm and typical presets at 30, 60, and 90 µm, the DMP Flex 350 accommodates both fine-detail applications and production-speed builds. The system achieves dimensional accuracy of ±0.1-0.2% with ±100 µm minimum, and positional repeatability of 60 µm (3σ) across all axes — meeting the tolerances required for functional metal components in demanding applications.

The Flex configuration provides maximum application flexibility with quick changeover between materials including titanium, aluminum, steel, nickel, cobalt-chrome, and copper alloys. GF's thoroughly tested LaserForm build parameters for each material ensure reliable results without extensive parameter development, making the DMP Flex 350 an effective platform for shops exploring multiple materials and applications.

Full Specifications

Parameter	Value
Build Volume	275 x 275 x 420 mm (includes build plate)
Laser Type	Fiber laser, 1 x 500 W
Laser Wavelength	1,070 nm
Layer Thickness	Adjustable, min 5 µm; typical 30, 60, 90 µm
Minimum Feature Size	200 µm
Minimum Wall Thickness	150 µm
Dimensional Accuracy	±0.1–0.2% with ±100 µm minimum
Positional Repeatability	Δx, Δy, Δz = 60 µm (3σ)
Atmosphere	< 25 ppm O₂ vacuum-based
Compatible Materials	Titanium, aluminum, steel, cobalt-chrome, nickel, copper, refractory alloys
Machine Dimensions (W X D X H)	2,370 x 2,400 x 2,869 mm
Machine Weight	4,200 kg
Machine Dimensions	2370 x 2400 x 2869 mm (DMP Flex 350 in printing condition)2370 x 2400 x 3470 mm (DMP Factory 350 in printing condition)
Machine Weight	4200 kg
Laser Type	1 or 2 or 3 x 500 W / Fiber laser
Laser Wavelength	1070 nm
Layer Thickness Range Preset	Adjustable, min. 5 μm, typical: 30, 60, 90 μm
Build Envelope	275 x 275 x 420 mm (height inclusive of build plate) – DMP 350 Single / Dual / Triple laser350 x 350 x 350 mm - DMP 350 Triple laser
Material Deposition	Soft blade recoater
Minimum Feature Size	200 μm
Minimum Wall Thickness	150 μm
Accuracy	± 0.1-0.2% with ± 100 μm minimum
Repeatability	Δx (3σ) = 60 μm, Δy (3σ) = 60 μm, Δz (3σ) = 60 μm

Specifications sourced from gfms.com — verified 2026-03-28

Strengths & Limitations

Strengths

Vacuum-based atmosphere (< 25 ppm O₂) delivers superior part quality and powder longevity
275 x 275 x 420 mm build volume handles substantial production-size components
Layer thickness adjustable from 5 µm for fine detail to 90 µm for speed builds
Thoroughly tested LaserForm parameters minimize material development time and risk
Quick material changeover supports multi-material R&D and prototyping environments
60 µm repeatability (3σ) ensures consistent part quality across production runs

Limitations

Single-laser configuration limits build speed versus Dual and Triple variants
4,200 kg weight and large footprint require dedicated installation space
Build volume height of 420 mm includes build plate — effective part height is reduced
Premium pricing versus commodity DMLS systems from Asian manufacturers

Best For

Aerospace prototyping and low-volume production of flight-critical metal components Medical device manufacturers producing patient-specific implants in titanium and CoCr R&D labs requiring flexible multi-material metal 3D printing capability Tool and die shops producing conformal cooling inserts for injection molds Service bureaus offering metal additive manufacturing across diverse material families

Frequently Asked Questions

01 What is the advantage of the vacuum-based atmosphere?

The DMP Flex 350 maintains oxygen below 25 ppm through a vacuum-sealed build chamber, rather than flowing inert gas. This produces consistently high material properties (especially for reactive metals like titanium), extends powder recycling life, and reduces argon gas consumption compared to gas-flow systems.

02 How does the DMP Flex 350 compare to the Dual and Triple variants?

The Dual adds a second 500 W laser for up to 50% build time reduction, and the Triple adds a third laser with the option of a larger 350 x 350 x 350 mm build volume. The single-laser Flex 350 offers the lowest capital cost and is best suited for R&D and low-volume applications.

03 What materials can the DMP Flex 350 process?

The system processes aluminum (AlSi10Mg), titanium (Ti Gr23/Gr5), stainless and maraging steels, nickel alloys (Ni718, Ni625), cobalt-chrome (CoCrMo), copper alloys, and refractory metals. GF provides optimized LaserForm build parameters for each.

04 Can DMP Flex 350 parts be used for end-use production?

Yes. The DMP Flex 350 produces fully dense metal parts suitable for end-use applications. The vacuum atmosphere and optimized parameters deliver material properties meeting or exceeding cast equivalents, and the platform is used in production for aerospace and medical components.