Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Design and Fabrication of Tool Change Multi-nozzle FDM 3D Printer

툴 체인지 방식 멀티 노즐 3D프린터의 설계 및 제작

  • Suk, Ik-hyun (School of Mechanical Engineering, Changwon National University) ;
  • Park, Jong-kyu (School of Mechanical Engineering, Changwon National University)
  • Received : 2020.08.10
  • Accepted : 2020.12.04
  • Published : 2021.02.28
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Abstract

To cater to the transition from single-color to multicolor/multi-material printing, this paper proposes a cartridge-replacing type multi-nozzle Fused Depositon Modeling(FDM) three-dimensional (3D) printer. In the test printing run, tool change failure/wobble/layer shift occurred. It was confirmed that improper support was the cause of this tool change failure. As a solution, spline and electromagnetic cartridges were designed. Wobble was caused by machine vibration and the motor stepping out. To minimize wobble, an additional Z-axis was installed, and the four-point bed leveling method was used instead of the three-point bed leveling method. The occurrence of layer shift was ascribed to the eccentricity of the Z-axis lead screw. Therefore, slit coupler was replaced with an Oldham type. In addition to the mechanical supplementation, the control environment was integrated to prevent accidents and signal errors due to wire connections. Before the final test printing run, a rectifier circuit was added to the motor to secure precise control stability. The final test printing run confirmed that the wobble/layer shift phenomenon was minimized, and the maximum error between layers was reduced to 0.05.

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References

  1. Choi, J. W. and Kim, H. C., "3D printing Technologies, A review", Journal of the Korean Society of Manufacturing Process Engineers, Vol. 14, No. 3, pp. 1-8, 2015. https://doi.org/10.14775/ksmpe.2015.14.3.001
  2. Oh, S. Y., Suh, D. A. and Kim, H. K., "Last Design for Men's Shoes using 3D Foot Scanner and 3D Printer", The Journal of the Korea Contents Association, Vol 16, No. 2, pp. 186-199, 2016. https://doi.org/10.5392/JKCA.2016.16.02.186
  3. Kim, M. J., Kim, M. K. and You, Y. S., "Food 3D Printing Technology and Food Materials of 3D Printing", The Korean Society of Clean Technology, Vol 26, No. 2, pp. 109-105, 2020.
  4. Oh, W. K., "Customized Model Manufacturing for Patients with Pelvic Fracture using FDM 3D Printer", Journal of the Korea Contents Association Vol 14, No. 11, pp. 370-377, 2014. https://doi.org/10.5392/JKCA.2014.14.11.370
  5. Kim, S. H. and Yoo, S. K., "Usefulness of Surgical Planning of Distal Humerus Shaft Fractures using Three - Dimensional Printing Technique", Journal of The Institute of Electronics and Information Engineers Vol. 55, No. 10, pp. 1255-1260, 2018.
  6. Jang, J. A. and Cho, D. W., "A Review of the Fabrication of Soft Structures with Three - dimensional Printing Technology", Journal of the Korean Society of Manufacturing Process Engineers, Vol. 14 No. 6, pp. 142-148, 2015. https://doi.org/10.14775/ksmpe.2015.14.6.142
  7. Shin, D. H., Park, Y. M. and Park, S. H., "Correlation between UV-dose and Shrinkage amounts of Post-curing Process for Precise Fabrication of Dental Model using DLP 3D Printer", Journal of the Korean Society of Manufacturing Process Engineers, Vol. 17, No. 2, pp. 47-53, 2018. https://doi.org/10.14775/ksmpe.2018.17.2.047
  8. Kim, H. J., "3D Printing Characteristics of Reverse Idle Gears for Tractor Transmissions", Journal of the Korean Society of Manufacturing Process Engineers, pp. 1-8, 2017.
  9. Kim, H. J. and Kim, N. K., "Dimensional Characteristics according to Internal Density of Automotive Inner Ring in 3D Printing", Journal of the Korean Society of Manufacturing Process Engineers, Vol. 18, No. 11, pp. 96-102, 2019.
  10. Kim, H. J., "3D Printing Characteristics of Automotive Hub using 3D Scanner and Reverse Engineering", Journal of the Korean Society of Manufacturing Process Engineers Vol. 18 No. 10, pp. 104 - 109, 2019.
  11. Noh, K. S., Seo, H. W., Kim, T. Y., Lee, Y. G., "Development of a G-Code Generator for Color Gradation Generations in a Mixing Chamber FDM 3D Printers", Korean Journal of Computational Design and Engineering Vol. 22, No. 1, pp. 10-17, 2017. https://doi.org/10.7315/CDE.2017.010
  12. Abilgaziyev, A., "Design and development of multi-nozzle extrusion system for 3D printer", Institute of Electrical and Electronics Engineers, 2015.