Photo-Chromeleon

Jin, Yuhua; Qamar, Isabel P. S.; Wessely, Michael; Adhikari, Aradhana; Bulovic, Katarina; Punpongsanon, Parinya; Mueller, Stefanie

doi:10.1145/3332165.3347905

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Techniques For Fabricating Multi-color/materials Objects1

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2020

2023

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Cited by 34 publications

(1 citation statement)

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“…Alternatively, an advanced additive-manufacturing technique has been investigated, such as inkjet 3D printing with special materials [24,30,38,32]. Post-processing is another alternative, painting in full colors, spraying electro-magnetic [44] or color-changeable paint [12]. However, hardware upgrades prevent non-experts from being able to afford these solutions, and additional steps for post-processing makes it hard to apply them in practice.…”

Section: Techniques For Fabricating Multi-color/materials Objectsmentioning

confidence: 99%

Programmable Filament

Takahashi

Punpongsanon

Kim

2020

Proceedings of the 33rd Annual ACM Symposium on User Interface Software and Technology

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Section: Techniques For Fabricating Multi-color/materials Objectsmentioning

confidence: 99%

Programmable Filament

Takahashi

Punpongsanon

Kim

2020

Proceedings of the 33rd Annual ACM Symposium on User Interface Software and Technology

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Multi‐Color 3D Printing via Single‐Vat Grayscale Digital Light Processing

Peng

Liang

et al. 2022

Adv Funct Materials

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Digital light processing (DLP) is a high-resolution, high-speed additive manufacturing method that builds 3D parts by selectively curing photopolymerizable resins layer-by-layer. To achieve multi-color DLP printing, researchers have used multiple switchable resin vats. However, these methods require complex vat switching devices and cleaning manipulations, leading to low efficiency. Therefore, it remains a challenge to achieve multi-color DLP 3D printing efficiently. In this study, a single-vat multi-color DLP 3D printing by using an anthraquinone-based dye is realized. The dye can be oxidized by the free radicals released from photoinitiators under ultraviolet light and change the color from blue to yellow. This color-changing mechanism permits a graded spectrum of colors as concomitants of the photopolymerization process during DLP printing by controlling the light dose without using extra vats or devices. Multi-color demonstrations, such as engineering stress simulation results in 3D and multi-color vases, are successfully fabricated, showing great versatility and efficiency.

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