{"id":6464,"date":"2026-05-22T09:37:44","date_gmt":"2026-05-22T09:37:44","guid":{"rendered":"https:\/\/nylonplastic.com\/digital-light-synthesis-dls-3d-printing-services\/"},"modified":"2026-05-22T09:41:55","modified_gmt":"2026-05-22T09:41:55","slug":"digital-light-synthesis-dls-3d-printing-services","status":"publish","type":"post","link":"https:\/\/nylonplastic.com\/ar\/digital-light-synthesis-dls-3d-printing-services\/","title":{"rendered":"Digital Light Synthesis (DLS) 3D Printing Services"},"content":{"rendered":"
\n \"Digital
Digital Light Synthesis (DLS) uses a digital light projector to cure an entire layer of resin simultaneously, enabling fast, precise production of engineering-grade components with excellent surface finish.<\/figcaption><\/figure>\n

Digital Light Synthesis (DLS) is a proprietary vat photopolymerization technology developed by Carbon that represents a significant advancement over conventional SLA. While SLA uses a single-point laser to trace each layer, DLS uses a digital light projector (DLP) to project an entire cross-sectional image \u2014 a entire layer \u2014 at once. This “projection” approach enables dramatically faster build speeds and consistent part quality across the entire build platform, producing engineering-grade parts with excellent surface finish, mechanical properties, and reproducibility.<\/p>\n

How DLS 3D Printing Works<\/h2>\n

In a DLS system, a UV light projector positioned below a transparent resin tank projects a mask image of the entire cross-section of the part onto a thin film at the bottom of the tank. The light triggers photoinitiators in the resin, causing it to polymerize (cure) all pixels of the layer simultaneously. A movable platform pulls the cured layer up, fresh resin flows into the gap, and the next layer is projected \u2014 repeating until the part is complete.<\/p>\n

Carbon’s proprietary CLIP (Continuous Liquid Interface Production) process takes this further by maintaining an oxygen-permeable window at the bottom of the resin tank, creating a dead zone where resin remains liquid. This allows continuous upward motion without the layer-by-layer pause cycle, dramatically increasing speed while producing isotropic, fully-dense parts.<\/p>\n

\n \"DLS
DLS process: full-layer UV projection with continuous upward build for isotropic mechanical properties<\/figcaption><\/figure>\n

Key Advantages of DLS Technology<\/h2>\n

Speed and Scalability<\/h3>\n

Because entire layers are projected simultaneously rather than traced by a laser, DLS builds up to 100 times faster than conventional SLA for large parts. Build speed is limited only by the speed of part separation from the film window, making DLS economically viable for both prototypes and end-use production at volume.<\/p>\n

Engineering-Grade Materials<\/h3>\n

DLS materials are specifically formulated for production applications, not prototyping. Carbon’s material library includes engineering-grade resins with mechanical properties that rival or exceed injection-molded thermoplastics \u2014 including high-temperature resistance, impact strength, and chemical resistance.<\/p>\n

Isotropic Mechanical Properties<\/h3>\n

Unlike SLA where layer lines can create directional weakness, DLS produces fully isotropic parts \u2014 the material properties are consistent throughout the entire volume of the part in all directions. This makes DLS parts suitable for demanding functional applications where predictability of material behavior is critical.<\/p>\n

Excellent Surface Finish<\/h3>\n

The pixel-based projection system produces smooth, uniform surfaces without the fine stair-stepping visible on SLA parts. This results in parts with excellent surface aesthetics and reduced post-processing requirements.<\/p>\n

DLS Material Portfolio<\/h2>\n\n\n\n\n\n\n\n\n\n
\u0627\u0644\u0645\u0648\u0627\u062f<\/th>\n\u0627\u0644\u062e\u0635\u0627\u0626\u0635 \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/th>\n\u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/th>\n<\/tr>\n<\/thead>\n
EPX 82 (Epoxy)<\/td>\nHigh strength, heat-resistant, Z-axis CTE matched to aluminum<\/td>\nFunctional brackets, structural parts, tooling<\/td>\n<\/tr>\n
EPX 150 (Epoxy)<\/td>\nHigh modulus, excellent surface quality<\/td>\nHousing, enclosures, consumer electronics<\/td>\n<\/tr>\n
CE 221 (Cyanate Ester)<\/td>\nExtreme high-temperature (HDT 230\u00b0C), aerospace-grade<\/td>\nAerospace ducts, high-temp jigs and fixtures<\/td>\n<\/tr>\n
SIL 30 (Silicone)<\/td>\n40A Shore durometer, tear-resistant silicone<\/td>\nSeals, gaskets, medical devices, wearables<\/td>\n<\/tr>\n
RPU 70 (Flexible PU)<\/td>\nImpact-resistant, versatile engineering resin<\/td>\nConsumer products, automotive, functional prototypes<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Common Applications<\/h2>\n
    \n
  • \u0627\u0644\u0633\u064a\u0627\u0631\u0627\u062a:<\/strong> End-use production parts including ducts, light guides, and structural brackets \u2014 with materials matched to automotive environmental requirements<\/li>\n
  • Consumer products:<\/strong> Durable consumer goods, wearable device components, and production parts for products that previously required injection molding<\/li>\n
  • Aerospace:<\/strong> High-temperature ducting, lightweight structural components, and tooling with aerospace-grade materials<\/li>\n
  • Medical devices:<\/strong> Biocompatible surgical instruments, custom medical device components, and patient-matched devices<\/li>\n
  • Industrial manufacturing:<\/strong> Production jigs, fixtures, and tooling that previously required CNC machining or metal fabrication<\/li>\n<\/ul>\n

    Design Considerations<\/h2>\n

    DLS requires support structures for overhangs steeper than approximately 45\u00b0. Parts should be designed with minimum wall thicknesses of 1.0mm for structural sections. As DLS parts are fully dense after printing, they do not require post-curing \u2014 but may benefit from support removal and light sanding for cosmetic surfaces.<\/p>\n

    \u0627\u0644\u0623\u0633\u0626\u0644\u0629 \u0627\u0644\u0634\u0627\u0626\u0639\u0629<\/h2>\n
    \nWhat is the typical lead time for DLS 3D printing?<\/strong><\/summary>\n

    Standard DLS parts ship within 3-5 business days. Due to the faster build speeds of DLS compared to conventional SLA, even complex parts typically fall within the standard lead time range.<\/p>\n<\/details>\n

    \nHow does DLS compare to injection molding?<\/strong><\/summary>\n

    DLS produces parts with mechanical properties comparable to injection molding for many engineering resins. For low-to-medium volume production (up to thousands of parts), DLS is often more cost-effective than injection molding since there are no mold tooling costs. For very high volumes, injection molding becomes more economical on a per-part basis.<\/p>\n<\/details>\n

    \nAre DLS parts suitable for functional end-use?<\/strong><\/summary>\n

    Yes, DLS parts are specifically designed for functional end-use applications. Materials like EPX 82 offer mechanical properties comparable to glass-filled thermoplastics, making them suitable for structural and demanding functional applications \u2014 not just prototypes.<\/p>\n<\/details>\n

    \nWhat is the maximum part size for DLS?<\/strong><\/summary>\n

    Our DLS systems support build volumes of up to 144 x 81 x 200mm. For larger parts, we recommend splitting the design into subsections for assembly or considering alternative processes like SLS or MJF for larger geometries.<\/p>\n<\/details>\n\t\t\t

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