Design of a Low-cost Extruder for Large Scale Additive Manufacturing with Earth-based Pastes

Design of a Low-cost Extruder for Large Scale Additive Manufacturing with Earth-based Pastes

Chávez Valdés, Florencia; Delgado Smulders, María Constanza; Karich, Juan Cristóbal; Raspall, Felix

Full Article:

This research explores the potential of earth construction as a low-carbon solution for large-scale additive manufacturing in the global south. Existing expensive printing technologies for earth-based structures limit their application in economically challenged regions. To address this, the study proposes and tests a low-cost extruder design using a paint/mortar mixer powertool, a metal hopper, and a 3D printed nozzle. The extruder is mounted on a CNC manipulator for precise control. Printing tests demonstrate the reliability of the design. The findings show that the low-cost extruder is a viable and sustainable option for large-scale printing, significantly reducing construction costs. By promoting the use of earth-based pastes, the research contributes to more environmentally friendly construction practices, aiding in mitigating the construction industry's environmental impact in the long run.

This research explores the potential of earth construction as a low-carbon solution for large-scale additive manufacturing in the global south. Existing expensive printing technologies for earth-based structures limit their application in economically challenged regions. To address this, the study proposes and tests a low-cost extruder design using a paint/mortar mixer powertool, a metal hopper, and a 3D printed nozzle. The extruder is mounted on a CNC manipulator for precise control. Printing tests demonstrate the reliability of the design. The findings show that the low-cost extruder is a viable and sustainable option for large-scale printing, significantly reducing construction costs. By promoting the use of earth-based pastes, the research contributes to more environmentally friendly construction practices, aiding in mitigating the construction industry's environmental impact in the long run.

Palavras-chave: - -

DOI: 10.5151/sigradi2023-165

Referências bibliográficas

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Como citar:

Chávez Valdés, Florencia; Delgado Smulders, María Constanza; Karich, Juan Cristóbal; Raspall, Felix; "Design of a Low-cost Extruder for Large Scale Additive Manufacturing with Earth-based Pastes", p-302-313. In: . São Paulo: Blucher, 2024.
ISSN 23186968, DOI 10.5151/sigradi2023-165