Study, design and prototyping of arm splint with additive manufacturing process
The aim1 of this study is to propose the additive manufactured 3D printed technique for adaptive organic design splint as a solution for the problems generated by the use of casts in medical applications. Since the end of the XVIII century, when casts begin to be used, they have barely improved. Thanks to new manufacture and material techniques, we can improve and modernize this commonly used fracture treatment method. Based on three dimensional digitalization techniques and modeling via reverse engineering software, a 3D printed splint is proposed, which will provide the benefits of cast avoiding its deficiencies.
Fabrication, 3D Printing, and Making
This chapter presents an introduction to digital fabrication and the exciting opportunities it offers in the accessibility and assistive technology domain. Digital fabrication tools are more efficient and accessible than manual fabrication tools, allowing for efficient and affordable creation or modification of existing assistive technologies, or novel solutions. This chapter provides an overview of relevant digital fabrication tools (with an emphasis on 3D printing technology) and current online communities to share ideas and designs, and discusses exciting research and practitioner contributions that leverage 3D printing. The chapter concludes with the author’s recommendations for how to successfully apply this technology in accessibility projects and areas for future inquiry.
Failure analysis for poor solderability of Au surface of PCB
Nonwetting is one of the common problems and is always rejected in electronic assemblies. ENIG pads of a PCBA exhibited nonwetting after lead-free reflow soldering. With the aid of stereomicroscope, SEM&EDS and XRF, a series of analysis was performed. And after visual inspection, surface and cross section analysis, thickness measurement and solderability test, it can be inferred that oxidation of plating surface was the main reason for nonwetting, and corrosion in Ni plating caused an adverse impact on solderalibity.