High resolution 3D printing on a nanoscale: samples printed and tested according to ISO for first time

Written by Georgi Makin

UpNano (Vienna, Austria) has successfully 3D printed specimens for material characterization according to ISO standards, for technology that can 3D print objects as small as 200nm.

UpNano (Vienna, Austria) has reported success in the 3D printing of test specimens for material characterization according to ISO standards, for technology that can 3D print objects as small as 200nm.

The team claims this is a first for the industry, as it has previously been impossible to manufacture test specimens around the size of a few centimeters.

In collaboration with TU Wien (Vienna, Austria) and using their own, specially designed photopolymer with high precision 2-photon polymerization (2PP) 3D printing, the team was able to 3D print specimens in different sizes and shapes required for ISO testing.

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High-resolution 3D printing is in increasing demand as it allows for the production of smaller, more precise parts compared to traditional manufacturing techniques. Reliable information on the standardization and quality management of large-scale production of nano-scale parts, however, is still lacking as testing standards require larger parts for testing processes.

By 3D printing 30 larger parts (of around 2cm), the team has successfully produced parts for standardizing testing the UpNano NanoOne printer, which is also capable of 3D printing of a nano-scale resolution.

Peter Gruber, Head of Technology and Co-founder of UpNano, explained:

Our proprietary adaptive resolution technology adapts the laser spot size in accordance with the required geometry and resolution. It enables users of the NanoOne-printer to manufacture specimens with a nanometer resolution – or in sizes up to centimeters. We now used the latter capability of the system to produce bending test specimens measuring 2cm length in size and tensile test specimens with length of 3.5 cm.”

Bernhard Küenburg, CEO of UpNano added:

The lack of standardized material specifications is a serious obstacle for using high performance 3D printing in an industrial setting. Decentralized production processes of global industries and warranty legislations are based on standards and norms. If your material or device does not fit in this finely-honed system, it might be good for prototypes – but not for series production.”

The team further claims that their technology is also compatible in the printing of living cells, as a complete system is currently in use at MedUni Vienna (Austria), where it could be applied to the printing of intricate scaffolds, membranes or microchannels.

Source: www.upnano.at/wp-content/uploads/2020/05/UpNano_News_ISO_material_characterization.pdf

Lead image: Courtesy of UpNano. Available via: www.upnano.at/wp-content/uploads/2020/05/UpNano_News_ISO_material_characterization.pdf