Fig. 11From: 3D digital technologies applied to the design and printing of auxiliary structures for fragment adhesion strategies on wax artifactsa Three point bending specimens of different PLA positions and densities. b Before bending testing. c PLA three point bending test process. d Comparison of bedning stress \({\sigma }_{f}=\frac{3FL}{2b{h}^{2}}\) bending deformation \({\varepsilon }_{f}=\frac{6sh}{{L}^{2}}\)Back to article page