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Direct Metal Laser Sintering (DMLS) 3D Printing Service

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Direct Metal Laser Sintered (DMLS) Part
How It Works
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DMLS Produces High-Quality Metal Parts Without Tooling

Direct metal laser sintering (DMLS) is a metal 3D printing technology used to build metal parts with exceptional mechanical properties and precision. Our Manufacturing Supplier Network gives you massive on-demand production capacity with a wide range of DMLS machines and high-performance materials.

Designers often chose DMLS for its ability to produce all-in-one metal assemblies and highly precise metal parts with complex features like internal supports and lattices. DMLS does not have upfront setup or tooling costs, making it an affordable option for fully dense metal parts. With DMLS’s affordability, speed, and superior design freedoms, companies and creators can build metal designs they never thought possible.

Xometry DMLS Capabilities


Build Size

10" x 10" x 10" (250 x 250 x 250 mm)

Standard Lead Time

3 business days

General Tolerances

+/- 0.005” for the first inch is typical, plus +/- 0.002” for every inch thereafter

Layer Height

.0012” - .0016" depending on material

Surface Roughness

150-400 µin Ra, depending on build orientation and material used for the build



This table depicts the general tolerances for direct metal laser sintering (DMLS) metal 3D printing. Learn more about our manufacturing standards.

How Direct Metal Laser Sintering Works

Direct metal laser sintering (DMLS) is an additive metal printing technology that builds metal parts from a CAD file by selectively fusing stainless steel or aluminum powder into thin layers. 

Direct metal laser sintering’s layer-by-layer printing allows multiple parts to be combined during the printing process. With traditional manufacturing processes, metal parts are machined or metal casted into several parts and assembled. Printing an all-in-one assembly strengthens the finished part while reducing the weight and cost of production significantly. DMLS techniques can also create parts at a high density. This is ideal for parts under high pressure such as in oil and gas industries.

Direct metal laser sintering DMLS 3D printing services

Direct Metal 3D Printing Materials

DMLS Materials Available at Xometry:
Material NameDescription

3D Printed Aluminum AlSi10Mg

Lightweight aluminum alloy. A great alternative to machining complex geometries.

3D Printed Stainless Steel 17-4

Fully-Dense 17-4 PH stainless steel metal, hardness 40 HRC, heat treatable.

3D Printed Stainless Steel 316/L

Fully-dense 316L stainless steel metal, superb corrosion resistance, meets requirements of ASTM F138.

3D Printed Maraging Steel MS1

A heat-treatable tool steel that can be post-hardened to more than 50 HRC to achieve excellent hardness and strength.

3D Printed Inconel 625

A heat and corrosion-resistant nickel alloy offering high oxidation resistance.

3D Printed Inconel 718

A heat and corrosion-resistant nickel alloy ideal for high-temperature applications. It offers good tensile, fatigue, creep, and rupture strength at temperatures up to 700 °C (1290 °F).

3D Printed Titanium Ti64

A lightweight alloy with excellent mechanical properties and corrosion resistance used in high performing engineering applications as well as biomedical devices.

Additional materials are available upon request! Review more information about our materials here.

Available Finishes

Standard: In addition to the removal of support structures, the part surface is media blasted to provide a uniform finish.

Custom: Additional DMLS post-processing, such as CNC Machining of features and polishing, are evaluated on a case-by-case basis and can be requested in the quoting tool.

    dmls aluminum

    Best Applications for DMLS

    Rapid tooling

    Rapid Tooling

    Because DMLS metal parts are strong yet lightweight, they are widely used for rapid tooling, fixtures, and jigs.

    Fast parts and fast shipping

    Rapid Prototyping

    DMLS metal 3D printing is typically affordable and fast, and therefore is often used to make proof-of-concept models and fully functional late-stage prototypes.

    Digital manufacturing


    Cast-quality finish (fully dense) and durable materials make DMLS printing a favorite technology for end-use products.

    Direct Metal Laser Sintering DMLS 3D printing services

    Ready to get started on your 3D printing quote?

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    Why Choose Xometry for DMLS 3D Printing?

    Massive Network Capacity

    Endless Options

    Choose from thousands of possible combinations of materials, finishes, tolerances, markings, and certifications for your order.

    Instant Quoting Engine

    Easy to Use

    Get your parts delivered right to your door without the hassle of sourcing, project management, logistics, or shipping.

    Guaranteed Quality

    Vetted Network

    We are ISO 9001:2015 certified and AS9100D compliant. Only the top shops that apply to become Suppliers make it through our qualification process.

    DMLS Part

    Download the DMLS Design Guide