Light Intensity Influence on Stereolithographic 3D Printing Curing Time

Abstract

In this work, estimation of light intensity influence on stereolithographic 3D printing curing time is presented. Testing method is applied for photopolymer resin material used for SLA 3D printing. Photopolymer samples are treated with 405 nm UV LEDs array, with different time durations and light intensity levels. Final hardness of the test samples has been estimated and compared. Results could be used for optimization of SLA technology, subject to optimal curing time and curing light intensity. Also energy efficiency and material efficiency could be improved by obtained data.