Journal
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART L-JOURNAL OF MATERIALS-DESIGN AND APPLICATIONS
Volume 236, Issue 2, Pages 267-279Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/14644207211022774
Keywords
Design for additive manufacturing; topology optimization; product development; fused deposition modelling
Categories
Funding
- FEDER through Operational Competitiveness Program -COMPETE [POCI-01-0145-FEDER-028857]
- National Funds through Foundation for Science and Technology FCT/MCTES
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Developing a low-cost medical device involves multiple stages of prototyping, with traditional manufacturing technologies potentially increasing development costs. This study demonstrates the development of a critical component for a low-cost microscope using novel design methodology and topology optimization to achieve the most cost-effective solution. The effectiveness of additive manufacturing prototypes in cost-effective examination and tensile strength improvement is explored, highlighting the importance of design for additive manufacturing and topology optimization as effective design tools.
Developing a low-cost medical device requires numerous stages of prototyping, where using traditional manufacturing technologies can increase development costs. The current study presents the development of a critical component for a low-cost microscope whose goal is to confer an inexpensive solution for automated analysis of microscopic smears. A novel design methodology was developed to optimize the achieved solution. During the exploration of this methodology, it is asked: how can an additive-manufactured prototype be cost-effective for accurate examination of cervical cytology smears? To understand the effect on cost and tensile strength that infill density and perimeter wall count, tensile tests were conducted. These results combined with the developed methodology achieved the most cost-effective solution. To achieve this, topology optimization was used to improve the stiffness-per-weight ratio of different parts. Finally, design for additive manufacturing and topology optimization was proven as an effective design tool.
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