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Related Experiment Video

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Liquid Supplied One Droplet Continuous 3D Printing.

Jiawei Sun1,2, Wangjun Xiong1,2, Lidian Zhang3

  • 1Key Laboratory of Green Printing, Beijing National Laboratory For Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing, P. R. China.

Small Methods
|December 29, 2025
PubMed
Summary
This summary is machine-generated.

A novel liquid-supplied 3D printing method enables continuous fabrication by managing heat and resin supply. This advance overcomes volume limitations and heat buildup in Digital Light Processing (DLP) 3D printing for enhanced performance.

Keywords:
enhance long‐term mechanical propertyon‐demand resin supplyreduce heat accumulationresin versatilityunlimited printing volume

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Area of Science:

  • Additive Manufacturing
  • Materials Science

Background:

  • Digital Light Processing (DLP) 3D printing offers sustainability, speed, and high resolution.
  • Continuous printing is hindered by heat buildup and limited build volumes.
  • Optimizing curing and resin formulation are key research areas.

Purpose of the Study:

  • To introduce a liquid-supplied, one-droplet 3D printing system for continuous fabrication.
  • To address heat accumulation and printing volume constraints in DLP 3D printing.
  • To enable thermally independent, high-speed continuous printing.

Main Methods:

  • Incorporation of a controlled liquid supply into a drop-on-demand 3D printing system.
  • Real-time resin replenishment and in situ curing within a droplet reservoir.
  • Utilizing ambient liquid infusion for internal thermal circulation and heat dissipation.

Main Results:

  • Elimination of printing volume limitations through continuous resin replenishment.
  • Effective mitigation of heat buildup via internal thermal circulation during UV curing.
  • Support for high-speed continuous printing with polyacrylate, ceramic, and flexible resins.
  • Improved printing accuracy, stability, and mechanical performance.

Conclusions:

  • The liquid-supplied one-droplet 3D printing approach enables continuous, thermally regulated fabrication.
  • This method overcomes key limitations of traditional DLP 3D printing.
  • It holds significant promise for on-demand, continuous 3D manufacturing of intricate architectures.