Additive 3D Printing Services | Custom Manufacturing & Engineering

Manufacturer of Metal, Ceramics, Engineered Resins, Plastic Parts and Functional Prototypes

LPR’s additive manufacturing and 3D printing facility in South Korea is equipped with cutting edge 3D printers (DMLS, SLS, SLA), hybrid additive manufacturing and milling machines, CNC machining centers, post-process equipment and inspection machines, all in one building. Our state-of-the-art facility and highly experienced engineers guarantee short lead times and quality services for the production of complex parts or prototypes in the  aerospace, medical, tooling, dies, and automotive industries.


For post processing solutions, we cater to our clients’ diverse needs for different surface treatments and finishes including spray painting.


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Additive 3D Contract Manufacturing | Industrial 3D Printing Services


Rapid Prototyping, Small Batch Manufacturing, and Post Process Finishing


Strategically located in South Korea, LPR’s additive manufacturing and post processing facility is ISO 13485, ISO 9001, ISO 14001, AS9100 and TS 16949 certified. We have developed our advanced additive manufacturing capabilities based on over 20 years of experience as a contract manufacturer in the automotive and medical industry. Finished products are delivered for commercial applications in the aerospace, automotive, medical, industrial and tooling industry.


Advanced knowledge of 3D printing materials and topology optimization helps us achieve high precision levels while converting 2D drawings to 3D models, and during the additive manufacturing process. The combination of technical expertise in heat deflection properties and a state-of-the-art facility has earned us our reputation as a leading provider of 3D printing services. Post processing services offered include anodizing, chromate, conversion coating, plating, bead blasting, grinding, polishing, heat treating, and laser etching.


Materials used for 3D printing of metal parts include various grades of aluminum (AlSi10Mg), stainless steel, mold steel NAK80, S45C steel, nickel alloy (Inconel), steel alloy, cobalt chrome (CoCrMo alloys), titanium, and magnesium. Global companies in the automotive and machinery sectors choose us as the ideal additive manufacturing service provider for building functional prototypes or complex geometry parts with integrated electrical and cooling channels. Direct Metal Laser Sintering (DMLS) machines are used for these applications.


Polymers used for additive manufacturing of plastic parts include Polypropylene, Polyamide 11 (PA1102), Polyamide 12 (PA2200), CarbonMide (Polyamide Carbon Fiber), Polyetherimide or Ultem, Acrylic, Polyether ether ketone (PEEK), Alumide (Polyamide Aluminum-filled), polycarbonate, ABS, HDPE, and more. While we offer various post processing services, our unique painting technology for plastic 3D printed parts ensures a strong bond and smooth surface finish.

Metal 3D Printing Services | Direct Metal Laser Sintering (DMLS)


As an experienced contract additive manufacturing service provider, we use various topology optimization tools to produce rapid prototypes in complex shapes with greater consistency, repeatability, less weight and shorter lead-times. Our cutting edge Direct Metal Laser Sintering (DMLS) machines create complex high-quality parts out of various powdered metals. Materials for metal 3D printing include various grades of aluminum (AlSi10Mg), stainless steel, nickel alloy (Inconel), carbon steel, brass, titanium, and cobalt chrome (CoCrMo alloys). Our facility’s equipment includes 400-watt fibre laser EOS M290 DMLS metal 3D printers and 5-axis DMG MORI hybrid laser sintering and milling machines.


We manufacture mold cores with conformal cooling channels by combining laser sintering technology with our plastic injection molding know-how. The cooling channels enable shorter cycle times and faster heat dissipation by minimizing hot spots during the plastic injection process. The end result is reduced manufacturing costs and increased productivity for a higher-quality uniform plastic part. Pictured below are examples of our plastic injection molds produced using additive manufacturing for plastic injection parts manufacturers.

3D Printed Mold Core (DMLS) with Conformal Cooling Channels

3D Printed DMLS Mold Core with Conformal Cooling Channels

3D printed mold core using Direct Metal Laser Sintering (DMLS). On the right is a see-through sample of the mold core with conformal cooling channels shown in contrasting pink.

3D Printed Mold Core (DMLS) Using Maraging Steel (MS1)

3D Printed DMLS Mold Core using Maraging Steel (MS1)

Mold core with conformal cooling channels produced using Direct Metal Laser Sintering with Maraging Steel (MS1). The conformal cooling channels, showed in pink, optimize the cooling process, shorten cycle time and greatly reduce the scrap rate to 0.15%. The use of integrated conformal cooling channels evenly dissipates the heat inside the die up to 3 times quicker than CNC machined cooling channels.

Plastic 3D Printing Services | Selective Laser Sintering (SLS) & Stereolithography (SLA)


Depending on the part, material, and application, we use Selective Laser Sintering (SLS) and Stereolithography (SLA) 3D printers for plastic parts manufacturing and prototyping. We produce parts using the SLS and SLA method for various industries including medical, automotive and aerospace. Examples of these parts include biocompatible dental and surgical applications, heat-resistant electronic components for aerospace, and investment casting master moulds for industrial manufacturing.


Production lead times for one-off prototypes can be manufactured in as little as 3-days. Aside from prototyping, we also offer parts manufacturing and assembly services. Below is an example of one of our functional prototypes produced using SLA/SLS additive manufacturing and finished with spray painting.

Spray Painted Surface Finish on Plastic 3D Printed Functional Prototype

Spray Painted Surface Finish on Plastic 3D Printed Functional Prototype

3D Printing Facility | Manufacturing & Testing Equipment


Finished product quality and meeting client specifications is of great importance to us. We provide First Article Inspection (FAI) reports with each manufacturing batch. Materials are checked using XRF metal analyzers and parts measurements are taken with various in-house CNC Coordinate Measuring Machines (CMM) with temperature compensation for accurate measurements. For the reliable operation and maintenance of our measuring machines, our quality control equipment is stored in a temperature- and humidity-controlled environment. Double checking of measurements is performed using manual tools such as veneer calipers, pin gauges, height gauges, and inside micrometers.

Humidity & Temperature Controlled Environment

Humidity & Temperature-Controlled Environment

3D Coordinate Measuring Machine

3D Coordinate Measuring Machine

Additive Manufacturing Equipment List


CNC Machining

  • Fanuc 3-axis CNC Machining Centers
  • DMG MORI 3-axis CNC Machining Centers
  • DMG MORI CNC Turn & Mill Lathes
  • DOOSAN CNC Turn & Mill Lathes


3D Printers

  • EOS Polymer 3D Printers
  • EOS Metal 3D Printers
  • DMG MORI Hybrid Additive Manufacturing & Milling Machines


Testing and Inspection

  • Mitutoyo 3D Coordinate Measuring Machines

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