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Innovations in 3D printing: Fibrous structures and mobile app development
Johnston, William
Johnston, William
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2021-04-09
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Johnston, William. 2021. Innovations in 3D printing: Fibrous structures and mobile app development -- In Proceedings: 20th Annual Undergraduate Research and Creative Activity Forum. Wichita, KS: Wichita State University, p. 18
Abstract
Grass, feathers, and hair: these items are found frequently in nature, but it remains difficult to replicate them within the growing realm of 3D printing. Additive manufacturing - especially Fused Deposition Modeling - has skyrocketed in popularity in recent decades, but the process still has its limitations and remains inaccessible to some. This research answers the question: can fibrous structures be consistently fabricated using novel additive manufacturing techniques? Here, two print methods have been developed: a traditional technique that relies on the bridging capabilities of the printer, and a method of altering the G-code - or the machine's printing instructions - to extrude print material and pull away to create each fiber. For both methods, fiber parameters were prescribed, including fiber density, extrusion amount, and pull speed. These techniques produce fibers of differing characteristics, from cylindrical rods to hair-like fibers that can even be braided or curled. Impedance tube testing shows their effectiveness at absorbing sound, with high fiber density samples reaching a sound absorption coefficient of 0.9 at frequencies between 2500-3500 Hz. To further expand the accessibility of 3D printing, a virtual 3D printer iOS app was developed to teach its users about the role of G-code in 3D printing. Users can create a 3D model by manipulating the printer's axes, then view their design within an augmented reality environment. This research provides further innovation within the field of 3D printing by introducing two novel fibrous print methods while giving iOS users a virtual printer in the palm of their hand.
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First place winner of an oral presentation for Natural Sciences and second place winner of the University Libraries Undergraduate Research Award at the 20th Annual Undergraduate Research and Creative Activity Forum (URCAF) held virtually, Wichita State University, April 9, 2021.
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Wichita State University
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URCAF
v.20
v.20