Mask Video Projection-Based Stereolithography with Continuous Resin Flow

Xiangjia Li, Huachao Mao, Yayue Pan, Yong Chen

Research output: Contribution to journalArticlepeer-review

26 Scopus citations


The mask image projection-based stereolithography (MIP-SL) is a low-cost and high-resolution additive manufacturing (AM) process. However, the slow speed of part separation and resin refilling is the primary bottleneck that limits the fabrication speed of the MIP-SL process. In addition, the stair-stepping effect due to the layer-based fabrication process limits the surface quality of built parts. To address the critical issues in the MIP-SL process related to resin refilling and layer-based fabrication, we present a mask video projection-based stereolithography (MVP-SL) process with continuous resin flow and light exposure. The newly developed AM process enables the continuous fabrication of three-dimensional (3D) objects with ultra-high fabrication speed. In the paper, the system design to achieve mask video projection and the process settings to achieve ultrafast fabrication speed are presented. The relationship between process parameters and the surface quality of the built parts is discussed. Test results illustrate that the MVP-SL process with a continuous resin flow can build three-dimensional objects within minutes, and the surface quality of the fabricated objects is significantly improved.

Original languageEnglish (US)
Article number081007
JournalJournal of Manufacturing Science and Engineering, Transactions of the ASME
Issue number8
StatePublished - Aug 1 2019
Externally publishedYes


  • additive manufacturing
  • continuous resin flow
  • high-speed fabrication
  • mask video projection
  • stereolithography

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Mechanical Engineering
  • Computer Science Applications
  • Industrial and Manufacturing Engineering


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