In the final project, we investigated the impact of exposure time and layer thickness on the geometric accuracy of microstructures produced by digital light processing (DLP) stereolithography. The experiments involved printing samples with varying exposure times and layer thicknesses, followed by measurements of geometric features using an optical digital microscope. We confirmed that shorter exposure times improve geometric accuracy regardless of layer thickness, while excessive exposure leads to errors due to over-polymerization. Optimizing exposure time is crucial for achieving better accuracy, with reduced layer thickness further enhancing quality.
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