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Weiss, Benjamin; Storti, Duane W.; Ganter, Mark A.

Low-cost closed-loop control of a 3D printer gantry

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  • Medientyp: E-Artikel
  • Titel: Low-cost closed-loop control of a 3D printer gantry
  • Beteiligte: Weiss, Benjamin; Storti, Duane W.; Ganter, Mark A.
  • Erschienen: Emerald, 2015
  • Erschienen in: Rapid Prototyping Journal
  • Sprache: Englisch
  • DOI: 10.1108/rpj-09-2014-0108
  • ISSN: 1355-2546
  • Entstehung:
  • Anmerkungen:
  • Beschreibung: <jats:sec> <jats:title content-type="abstract-heading">Purpose</jats:title> <jats:p> – The purpose of this paper is to explore the improvements in speed and precision achievable using straightforward closed-loop control for the gantry motion in additive manufacturing machines. The authors designed and built an economically viable demonstration system to quantify the performance improvement. </jats:p> </jats:sec> <jats:sec> <jats:title content-type="abstract-heading">Design/methodology/approach</jats:title> <jats:p> – The authors develop and evaluate a low-cost closed-loop controller for the X and Y axes of an entry-level three-dimensional (3D) printer. The system developed captures and compensates for the dynamics of the motor and the belt-driven stage and detects mechanical errors, such as skipped motor steps. </jats:p> </jats:sec> <jats:sec> <jats:title content-type="abstract-heading">Findings</jats:title> <jats:p> – The system produces path-following precision improvements of 40 and 75 per cent for two different sample trajectories. Correcting for skipped steps increases reliability and allows for more aggressive tuning of motion parameters; time savings of up to 25 per cent are seen by doubling acceleration rate. </jats:p> </jats:sec> <jats:sec> <jats:title content-type="abstract-heading">Research limitations/implications</jats:title> <jats:p> – The system presented provides an appropriate platform for further investigation into more complex, application-specific controllers and inclusion of more details of the printer dynamics that could produce still greater improvements in speed and accuracy. </jats:p> </jats:sec> <jats:sec> <jats:title content-type="abstract-heading">Practical implications</jats:title> <jats:p> – The performance, low cost (40 USD/axis) and applicability to the majority of sub-2000USD 3D printer designs make this work of practical significance. </jats:p> </jats:sec> <jats:sec> <jats:title content-type="abstract-heading">Originality/value</jats:title> <jats:p> – The CNC machining industry has for many years used similar approaches, but application to 3D printers has not been explored in the literature. This paper demonstrates the value of even a simple controller applicable to almost any 3D printer, while maintaining cost-effectiveness of the solution in a competitive market.</jats:p> </jats:sec>