• TITLE: DESIGN AND BUILD HIGH PRECISION SLA 3D PRINTER
• AUTHOR(S): P. Ikonomov, A. Wyman, S. Rawale
• ABSTRACT: The goal of this research was to build a high precision 3D printer to be able to produce high- resolution biological structures. We designed, build from scratch, and tested 10 microns resolution SLA 3D printer to create high precision structures with complex 3D external and internal spaces. The laser moves on predefined paths on X and Y- axes to cure resin, layer by layer, and then moves up on the Z-axis for each subsequent layer until the part is produced. The 3D printing process utilizes a three-axis platform with motion resolution of +/-5 microns and curing laser with diameter 10 microns to enable curing of the resin and building of thin walls and cavities not possible with other 3D printer technology. Furthermore, this 3D printer increases the accuracy and finished surfaces of the printed structures. The printing is controlled by CNC system, providing simultaneous motion in all three axes using stepper motors and preloaded ball screws. We had built several FDM, SLA, and SLS 3D printers and CNC machines, which experience helped us to achieve a design with desired high resolution. The 3D printer serves as a foundation for future research to print high precision parts such as biocompatible bone structures.
• PAGES: 46-
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