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Carbon Digital Light Synthesis™ (DLS™) 3D Printing Service

High-Performing Prototypes and Serialized Production Parts
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Carbon Digital Light Synthesis™ (DLS™) makes production parts without tooling
Applications and Benefits
About Carbon Digital Light Synthesis™
Download Guide

Production-Grade Parts Without Tooling

Carbon® uses digital light projection, oxygen-permeable optics, and programmable liquid resins to produce products with end-use durability, resolution, and surface finish. This technology, along with Carbon’s custom liquid resins, unlocks new business opportunities and product designs previously impossible, including mass customization and on-demand inventory. The Carbon platform enables companies to bring products to market that were never thought possible.

Carbon DLS™ 3D printing services

Digital Light Synthesis™ Materials

DLS™ Materials Available at Xometry:
Material NameDescriptionShore HardnessElongation at Break (%)Impact Strength (J/m)

RPU 70

Rigid polyurethane



22 J/m

UMA 90

Urethane methacrylate



33 J/m

EPX 82

Impact-resistant epoxy



44 J/m

CE 221

High temp cyanate ester (HDT 230C)



15 J/m

FPU 50

Flexible polyurethane



40 J/m

EPU 40

Elastomeric polyurethane




SIL 30

Elastomeric silicone-urethane




More Carbon DLS™ materials are available upon request! Review more information about our materials here.

Available Finishes for Carbon DLS™ Parts

Parts built with Carbon DLS technology will typically have a matte to semi-gloss surface finish depending on feature direction. Extended protrusions will show vertical lines in the part that are parallel to the direction of growth. Supports are removed and mitigated as required.

Custom Color (UMA 90)

UMA 90 materials come in different colors available for custom mixing. Although the standard is black or white, other solid colors can be available for part productions.


Don’t see the finish you need? Submit an RFQ and we’ll look into a finishing process for you.

Carbon DLS 3D printing services

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Applications for Carbon DLS™ Technology

Fast parts and fast shipping

Rapid Prototyping

Carbon DLS™ technology can be used to create strong, flexible, and colorful prototypes

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End-Use Functional Parts

Carbon DLS™ materials are fully dense and engineered for end-use

Digital manufacturing

Direct Digital Manufacturing

Carbon DLS™ is ideal for serialize production of small to medium-sized parts

Benefits of Carbon DLS™ 3D Printed Parts

Carbon DLS RPU 70 rigid polyurethane
Engineered Materials
Carbon DLS RPU 70 rigid polyurethane

3D print directly in urethanes, epoxies, elastomers, and other specialty thermosets.

Complex Shapes and Lattices
Carbon DLS CE with complex lattice features

Best-in-class at 3D printing of lattice structures and organic shapes.

Carbon Digital Light Synthesis (DLS) makes production parts without tooling

Produce small parts in serialized production at pricing competitive with injection molding.

Carbon DLS™ General Tolerances

DescriptionTolerance Notes

General Tolerances

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

Build Size

The typical build area is 7.4” x 4.6” x 12.8”. Parts with dimensions exceeding 4” x 4” x 6” will require manual review.

Ideal Part Size

Part's below 2" x 1" x 3" or smaller tend to have the best production economy of scale.

Minimum Wall Thickness

0.030" or larger is suggested for any walls, text, or lattice features.

DLP Pixel Resolution

Approx. 0.005" square

This table depicts the general tolerances for Digital Light Synthesis™. Stresses during the build, support strategy, and other geometry considerations may cause deviation in tolerances and flatness. Improved tolerances may be possible with a manual quote review, after successful completion of a prototype build, and must be approved on a case-by-case basis. Please check out Xometry's Manufacturing Standards for more information on tolerances per process.

Overview: What is Carbon DLS™ Technology?

Carbon DLS™ Technology Basics

Carbon uses digital light projection, oxygen-permeable optics, and programmable liquid resins to produce products with end-use durability, resolution, and surface finish. This 3D printing technology is called Digital Light Synthesis™, or DLS for short. Another legacy term for the process is Continuous Liquid Interface Production (CLIP). Along with Carbon’s custom liquid resins, DLS unlocks new business opportunities and product designs previously impossible, including mass customization and on-demand inventory of end-use products.

Carbon bridges, and sometimes substitutes, for processes like Urethane Casting and Injection Molding service production, because the materials are urethane-based or epoxy-based, giving excellent mechanical properties. There are even elastomer and silicone resins that outperform most additive manufactured rubber-like materials.

    Carbon DLS digital light synthesis 3D printing services

    What Differentiates Carbon

    What differentiates Carbon from similar processes like Stereolithography (SLA) or PolyJet 3D prints is that the resin has a secondary thermal step which activates dormant epoxies or urethanes, making parts much stronger than UV-curing alone. Additionally, the DLS process is continuous, without stopping layer-by-layer as with most additive manufacturing. This gives the parts isotropic properties, meaning that strength is even regardless of orientation. This is a significant advantage over processes like Fused Deposition Modeling (FDM), where Z-direction features can be much weaker than similar features built in the XY-direction.

      Carbon DLS UMA

      Why Choose Xometry for 3D Printing?

      Massive Network Capacity

      Endless Options

      Choose from millions 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

      Only the top shops that apply to become Partners make it through our multi-tiered qualification process, so you can be confident your part will be made right.

      Download our Carbon DLS™ design guide today!

      Download the Carbon DLS™ design guide