About this Abstract |
Meeting |
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
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Symposium
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2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
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Presentation Title |
Use of an Acousto-Optic Deflector Light Engine to Improve Resolution and Speed of the Stereolithography Process |
Author(s) |
Kaya J. Bayazitoglu, Tim Phillips, Joseph J. Beaman, Arthur Paolella, Carrigan Braun, James Ottaway, Chris Corey, Joe Dodd, Nick Alban |
On-Site Speaker (Planned) |
Kaya J. Bayazitoglu |
Abstract Scope |
In stereolithography (SLA) additive manufacturing (AM), a laser system creates part geometries using galvanometric mirrors and field lenses to locally polymerize raw materials. Small features require smaller laser spot sizes to achieve sufficient resolution and accuracy, while larger parts require longer scan times. The use of an acousto-optic deflector (AOD) to significantly reduce the time delay resolving the re-aiming of the laser to each disparate polymerization coordinate well below that of a galvo-system may allow for an increase in both speed and resolution of the SLA process. The use of an AOD to raster perpendicular to the regular galvo scan line enables the use of dynamic beam-shaping with smaller spot sizes while avoiding cure-through problems associated with the gaussian beam shape. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |