Journal of Applied Optics, Volume. 45, Issue 5, 1008(2024)

FDM printing trajectory measurement and quality evaluation method based on infrared imaging

Yuetong ZHANG1...2, Wenliang CHEN1,2, Xiangjun WANG1,2, Feng LIU1,2,*, and Meiyi WANG12 |Show fewer author(s)
Author Affiliations
  • 1State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China
  • 2MOEMS Education Ministry Key Laboratory, Tianjin University, Tianjin 300072, China
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    Figures & Tables(25)
    Structure diagram of Cartesian 3D printer
    Schematic diagram of camera installation
    Schematic diagram of coordinate transformation
    Flow chart of coordinate transformation
    Infrared calibration target
    Target in infrared image
    Principle of continuous pose measurement
    Reference of WCS
    Full image corner detection
    Section diagram of nozzle structure
    Schematic diagram of printing trajectories
    Cross section diagram of printing trajectories
    Projection of trajectory model
    Infrared image of normal printing process
    Experimental equipment
    Reprojection error in printing process
    Infrared image in printing process of cylinder inner and outer wall
    High temperature area and IoU in normal printing process
    Infrared image of misalignment printing process
    High temperature area and IoU in misalignment printing process
    Infrared image of insufficient printing process
    High temperature area and IoU in insufficient extrusion printing
    Infrared image of excessive printing process
    High temperature area and IoU in excessive extrusion printing
    • Table 1. Infrared camera calibration parameters

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      Table 1. Infrared camera calibration parameters

      参数标定值
      [fx,fy]/pixel[334.767, 334.217]
      [u0,v0]/pixel[126.215, 100.097]
      k1,k2,k3,p1,p2[−0.4112, 0.1012, 0.0008, −0.1810, 0.9387]
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    Yuetong ZHANG, Wenliang CHEN, Xiangjun WANG, Feng LIU, Meiyi WANG. FDM printing trajectory measurement and quality evaluation method based on infrared imaging[J]. Journal of Applied Optics, 2024, 45(5): 1008

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    Paper Information

    Category:

    Received: Aug. 7, 2023

    Accepted: --

    Published Online: Dec. 20, 2024

    The Author Email: LIU Feng (刘峰)

    DOI:10.5768/JAO202445.0503003

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