<div class="csl-bib-body">
<div class="csl-entry">Cong, B., Yoo, H. W., Pechgraber, D., & Schitter, G. (2025). High-Speed and High-Resolution Polygon Mirror-Based Industrial Stereolithography With Advanced Active Error Compensation. <i>IEEE-ASME TRANSACTIONS ON MECHATRONICS</i>, 1–10. https://doi.org/10.1109/TMECH.2025.3527648</div>
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dc.identifier.issn
1083-4435
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/213517
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dc.description.abstract
A high-speed and high-resolution polygon mirror (PM)-based industrial stereolithography apparatus (SLA) is designed and integrated with advanced active error compensation (AEC). The designed PM-based scanner provides extremely high laser beam scanning speeds but suffers from wobble errors caused by facet tilts, compromising its print quality. The advanced AEC is proposed to reduce the wobble error, where laser beams are deflected according to a precomputed compensation trajectory using a fast-steering mirror with iterative learning control. By exploiting the repetitiveness of the compensation trajectory, the advanced AEC yields a substantial 27-fold reduction in the wobble error and achieves a printing precision of 5 μm in standard deviation, enabling the industrial SLA with 22 μm optical resolution in a 460mm print range with a print speed of 230m/s. The achieved printing performance is demonstrated by printed samples using photosensitive resin.
en
dc.language.iso
en
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dc.publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
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dc.relation.ispartof
IEEE-ASME TRANSACTIONS ON MECHATRONICS
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dc.subject
laser scanning
en
dc.subject
mechatronics integration
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dc.subject
Polygon Mirror
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dc.subject
stereolithography
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dc.title
High-Speed and High-Resolution Polygon Mirror-Based Industrial Stereolithography With Advanced Active Error Compensation
