Development and implementation of continuous path for 3D printing based on variable strands width filling

• Grant number: 23/11404-7
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: November 01, 2023
• Status: Discontinued
• Field of knowledge: Engineering - Mechanical Engineering - Manufacturing Processes
• Principal Investigator: Zilda de Castro Silveira
• Grantee: Ricardo Henrique Dias
• Host Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
• Associated research grant(s): 25/03505-3 - 13th Brazilian Congress of Manufacturing Engineering, AR.BR
• Associated scholarship(s): 25/04996-0 - Altprint Program for Additive Planning by Extrusion: Application in PRUSA Architecture Equipment, Evaluation of Functional Parts Under Cyclic Loading, and Redesign of an Assistive Device with Codivilla Spring, BE.EP.IC

Abstract

This work aims to study strategies and algorithms for implementing continuous 3D printing paths by extrusion, within the digital slicing stage of additive planning. This method will be integrated into the Altprint program (Idogava et al. 2023) which generates structures with flexible regions, by varying the material in sections in the printed segments. The computational implementation will be developed within the concept of Open Source for the machine code programming language (G language); digital slicing and 3D printing desktop equipment. The codes will be tested through the generation of layers in simple geometric structures (rectangular and circular structures, with some features), for calibration of the computer program and subsequent analysis of the morphology obtained. Obtaining the functional articulated mechanism printed in a single step depends on the calibration of the program with the equipment model, and naturally on the reproducibility of the program under development. This process involves frontier knowledge within engineering specialties including, for example, materials science, engineering materials, manufacturing process, mechanical design, and computing.