id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
brj-24952	Wang, Chen; Huang, Han-yi; Wang , Xiaowen	Structural Toughness Enhancement Method for Material Extrusion-Based 3D-Printed Model: A Rigid Shell-Flexible Infill Composite Structure	2025	8	.pdf	application/pdf	3494	148	50	For the special structure of MEX 3D-printed models, this study innovatively proposes a rigid shell- flexible infill composite structure printing method, i.e., the shell of the model is printed with rigid material to provide the required structural strength and deformation resistance; the infill of the model is printed with flexible material, which absorbs energy through its PEER-REVIEWED ARTICLE bioresources.cnr.ncsu.edu Wang et al. (2025). To achieve the composite printing of rigid material (PLA) and flexible material (TPU), this experiment used the automatic material system (AMS) technology of a Bambu Lab 3D printer.	cache/brj-24952.pdf	txt/brj-24952.txt