# 3d

By [Untitled](https://paragraph.com/@0xa3a98b773156128141a84c13a3da6b899ede072e) · 2023-10-08

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An impressive 3D printing technique combining direct ink writing with up-conversion particles-assisted photopolymerization. The need for support structures is eliminated

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*Originally published on [Untitled](https://paragraph.com/@0xa3a98b773156128141a84c13a3da6b899ede072e/3d)*