The Efficiency of Manufacturing 3D Printed Part by Using Resin Polymer Redyarsa Dharma Bintara, Andoko Andoko, Suprayitno Suprayitno, Yanuar Rohmat Aji Pradana, Jing-Yiih Lai, Fiki Maulana and Haydar Yahya E3S Web Conf., 445 (2023) 01031 Published online: 14 November 2023 DOI: 10.1051/e3sconf/202344501031