An Adaptive Nozzle for Both Fast and Accurate 3D Printing From Johns Hopkins

When it comes to 3D printing, many users find themselves facing a choice of either a high resolution or a high speed. It is indeed challenging to reconcile both without compromising. Printing nozzles with a small diameter enable intricate details and precise prints, while larger nozzle diameters ensure fast printing results. A new approach could offer a solution so that in future you no longer have to choose between precise & slow and fast & sloppy. Jochen Müller and Seok Won Kang from the Whiting School of Engineering at Johns Hopkins University have developed an adaptive nozzle that can do both.

The two have developed a printing technique with a special adaptive nozzle called AN3DP – which can dynamically change its diameter and cross-sectional shape during printing. This makes it possible to print fast and detailed parts. It is also designed to avoid printing errors.

Photo Credits: John Hopkins University

Fixed nozzles often lead to over- or under-extrusion. This can lead to a stair-stepping effect, particularly with components that have both complex details and solid elements. The team’s main motivation was therefore to use an adaptive nozzle to improve the process and results in 3D printing.