“…The post-processing procedures are further classified into chemical finishing (Colpani et al , 2019; Valerga et al , 2019; Mu et al , 2020; Singh et al , 2020), irradiation-based surface finishing (Chen et al , 2020b; Zhang and Chen, 2020), thermal surface finishing (Chen and Zhang, 2019; Chen et al , 2020a; Taufik and Jain, 2020; Jithin and Joshi, 2021), mechanical finishing (Jian et al , 2021; Lizzul et al , 2021) and the combination of different finishing methods (McCullough and Yadavalli, 2013; Baligidad et al , 2020). The core principle of the chemical finishing method is based on the chemical reaction between the printed model and the applied solvent; however, the application of some chemicals might be inappropriate to some feedstock materials.…”