Draw your own circuits with liquid metal

By Charlie Crowe /September 10, 2019September 9, 2019

Featured Image: Image from blickpixel on Pixabay

Title: Rewritable, Printable Conducting Liquid Metal Hydrogel

Authors: Jung-Eun Park, Han Sol Kang,Jonghyek Baek, Tae Hyun Park, Seunghee Oh, Hyungsuk Lee, Min Koo, and CheolminPark

Journal: ACS Nano

Year: 2019

Researchers at Yonsei University in South Korea havedeveloped a new material that represents a leap in flexible electronics. It canbe incorporated into materials ranging from smart clothing to bendable screens.By combining polymer chemistry with liquid metal particles, the circuits formedare not only flexible, but also easily

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Casting Metal Directly Into 3D Printed Molds

Casting metal and 3D printing go together like nuts and gum, and there are no shortage techniques that use the two together. Lost PLA casting is common, and sculptors are getting turned on to creating their works in plastic first before sending it off to the foundry. Now the folks at FormLabs have turned the whole ‘casting metal and 3D printer’ thing on its head: they’re printing sacrificial molds to cast pewter.

There are two techniques demonstrated in this tutorial, but the real winner here is printing a complete sacrificial mold for pewter miniatures. While this technique requires a little bit of work including washing, curing, and a bit of post-processing, you would have to do that anyway with anything coming out of a resin printer.

The material of choice for these molds is a high temp resin with a heat deflection temperature of 289

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