3D Printing
News Videos Newsletter Contact us
Home / News / New NIR SLA Process Allows Multi Material and Color Printing
qidi

New NIR SLA Process Allows Multi Material and Color Printing

May 31, 2023

Researchers at Heriot-Watt University in Edinburgh have developed a new 3D printing technique that has the potential to revolutionize the manufacturing industry. Led by Dr. Jose Marques-Hueso, the team has modified the stereolithography process to enable the use of near-infrared (NIR) light for 3D printing complex structures with multiple materials and colors.

Unlike traditional 3D printers that apply a blue or UV laser to solidify a liquid resin layer by layer, the new method uses NIR light to penetrate deep into the resin vat without the need for layering. This breakthrough allows for printing at depths of over 5 cm, compared to the typical limit of 0.1 mm. The NIR light source exploits the invisibility window of materials, making it possible to print objects with one material and later add a second material anywhere in the 3D space.

New NIR SLA Process Allows Multi Material and Color Printing
Dr Jose Marques-Hueso and Dr. Adilet Zhakeyev in the lab. (Image credit: Heriot-Watt)

The implications of this advancement are significant for various industries, particularly those that rely on specialist parts, such as healthcare and electronics. For instance, the technique enables the printing of hollow structures that can later be filled with different materials. Additionally, the researchers have developed engineered resins containing nanoparticles that exhibit optical upconversion, transforming NIR photons into blue photons to solidify the resin. This allows for the printing of multiple materials with distinct properties in the same sample, opening up new possibilities for applications like shoe production, object restoration, and in-situ bioprinting through the skin.

“In the same research project, we had previously developed a resin that can be selectively copper-plated,” continues Dr Marques-Hueso.

“Combining both technologies, we can now 3D print with two different resins and selectively cover just one of them in copper by using a simple plating solution bath. This way, we can create integrated circuitry in 3D, which is very useful for the electronics industry.”

Overall, this cutting-edge 3D printing technique has the potential to advance manufacturing by providing a cost-effective solution for creating complex, multi-material objects with diverse applications across various industries.

Come and let us know your thoughts on our Facebook, Twitter, and LinkedIn pages, and don’t forget to sign up for our weekly additive manufacturing newsletter to get all the latest stories delivered right to your inbox.

Share:
WhatsApp Twitter Facebook LinkedIn Buffer Reddit E-mail
About the author | Phillip Keane
Phillip is an aerospace engineer from UK. He is a graduate of Coventry University (UK), International Space University (France) and Nanyang Technological University (Singapore), where he studied Advanced Manufacturing at the Singapore Centre for 3D Printing.
Join our newsletter

Our newsletter is free & you can unsubscribe any time.

Latest posts

Singapore Startup Creates Limited Edition 3D-Printed Collectibles from Recycled Plastic Bottles

Singapore-based startup Unigons has launched a limited collection of 3D-printed Merlion figurines made from recycled plastic bottles. The company produced 60 pieces of... read more »

News
Singapore Startup Creates Limited Edition 3D-Printed Collectibles from Recycled Plastic Bottles

Designer Uses Robotic 3D Printing to Create Dual-Purpose Dog Furniture

Designer Liam de la Bedoyere has developed the Dog Hut Side Table, a piece of furniture that combines a resting space for dogs... read more »

News
Designer Uses Robotic 3D Printing to Create Dual-Purpose Dog Furniture

Scientists 3D Print Solar-Powered Sponge for Seawater Desalination

Researchers have developed a 3D-printed aerogel material that uses sunlight to convert seawater into drinking water. The sponge-like structure contains microscopic vertical channels... read more »

News

Revopoint Launches Major Prime Event 2025 Sale with Up to 40% Off 3D Scanners and Accessories

Revopoint is kicking off its Prime Event 2025 with a series of major discounts on its range of professional 3D scanners and accessories.... read more »

News

Turkish Companies Test 3D Printed Component for Armored Vehicles

MetalWorm and Nurol Makina, both based in Ankara, Turkey, have completed testing of an armored vehicle component manufactured using Directed Energy Deposition (DED)... read more »

3D Printing Metal
Turkish Companies Test 3D Printed Component for Armored Vehicles

McGill Spinout Uses 3D Bioprinting to Create Tumors for Smarter Cancer Treatments

TissueTinker, a McGill University spinout company, has developed 3D bioprinting technology to create miniaturized tumor models for cancer drug testing. The company recently... read more »

Medical
McGill Spinout Uses 3D Bioprinting to Create Tumors for Smarter Cancer Treatments

University of Twente Awarded €13.6M for Research in Circular 3D Printing and Transparent AI

The University of Twente has received €13.6 million in funding from the 2024 NWA ORC program to lead two research projects focused on... read more »

News
University of Twente Awarded €13.6M for Research in Circular 3D Printing and Transparent AI

China’s 3D Printed Micro Turbojet Engine Completes Maiden Flight

The Aero Engine Corporation of China (AECC) has successfully completed the first flight test of its 3D-printed micro turbojet engine in Inner Mongolia... read more »

Aerospace
China's 3D Printed Micro Turbojet Engine Completes Maiden Flight

Laser-Assisted Cold Spray Technology Enhances Material Deposition Process

Researchers at the University of Cambridge's Center for Industrial Photonics have developed a new additive manufacturing technique called laser-assisted cold spray (LACS). The... read more »

3D Printing Metal
Laser-Assisted Cold Spray Technology Enhances Material Deposition Process

Social

  • Facebook Facebook 3D Printing
  • Linkedin Linkedin 3D Printing
Join our newsletter

Our newsletter is free & you can unsubscribe any time.

Featured Industries

  • Automotive
  • Aerospace
  • Construction
  • Dental
  • Environmental
  • Electronics
  • Fashion
  • Medical
  • Military
  • Snapmaker Artisan Premium 3-in-1

    • - Print size: 400 x 400 x 400 mm
    • - comes with enclosure
    More details »
    $2,999.00 Snapmaker
    Buy Now
  • QIDI Tech X-Max 3

    • - Print size: 325 x 325 x 315 mm
    • - fully enclosed
    More details »
    $799.00 QIDI Store
    Buy Now
  • QIDI Plus4

    • - Print size: 305 x 305 x 280 mm
    • - print temperature of 370°C
    More details »
    $799.00 QIDI Store
    Buy Now
  • QIDI Tech Q1 Pro

    • - Print size: 245 x 245 x 245 mm
    • - 600mm/s max speed
    More details »
    $449.00 QIDI Store
    Buy Now

Company Information

  • What is 3D Printing?
  • Contact us
  • Join our mailing list
  • Advertise with us
  • Media Kit
  • Nederland 3D Printing

Blog

  • Latest News
  • Use Cases
  • Reviews
  • 3D Printers
  • 3D Printing Metal

Featured Reviews

  • Anycubic Photon Mono M5s
  • Creality Ender 5 S1
  • The Mole 3D Scanner
  • Flashforge Creator 3 Pro

Featured Industries

  • Automotive
  • Aerospace
  • Construction
  • Dental
  • Environmental
  • Electronics
  • Medical
  • Military
  • Fashion
  • Art
2025 — Strikwerda en Dehue
  • Home
  • Join our mailing list
  • Contact us
Blog
  • Latest News
  • Use Cases
  • Reviews
  • 3D Printers
  • 3D Printing Metal
Featured Industries
  • Automotive
  • Aerospace
  • Construction
  • Dental
  • Environmental
  • Electronics
  • Medical
  • Military
  • Fashion
  • Art
Company Information
  • What is 3D Printing?
  • Contact us
  • Join our mailing list
  • Advertise with us
  • Media Kit
  • Nederland 3D Printing