3D Printed hand that can play Super Mario

Team Udayavani, Jul 19, 2021, 12:22 PM IST

Source: Rabaey Lab

A team of researchers have come up with a 3D printed soft robotic hand that is agile enough to play Nintendo’s Super Mario Bros, and win too.

This breakthrough is by a team, led by University of Maryland assistant professor of mechanical engineering, Ryan D Sochol. It has the ability to 3D print fully assembled soft robots with integrated fluidic circuits in a single step.

Explaining about the 3D hand, co-first author Joshua Hubbard.D said, “Previously, each finger of a soft robotic hand would typically need its own control line, which can limit portability and usefulness.”

Hubbard added in a paper published in the journal Science Advances, “But by 3D printing the soft robotic hand with our integrated fluidic transistors, it can play Nintendo based on just one pressure input,”

Unfortunately, controlling the fluids that make these soft robots bend and move has been especially difficult – until now. In addition to this, Sochol’s team also reported terrapin turtle-inspired soft robots in their paper.

“Recently, several groups have tried to harness fluidic circuits to enhance the autonomy of soft robots, but the methods for building and integrating those fluidic circuits with the robots can take days to weeks, with a high degree of manual labor and technical skill,” said the co-first author of the study, Ruben Acevedo.

In order to overcome the barriers, the team turned to “PolyJet 3D Printing,” which is like using a color printer, but with many layers of multi-material ‘inks’ stacked on top of one another in 3D.

“Within the span of one day and with minor labor, researchers can now go from pressing start on a 3D printer to having complete soft robots – including all of the soft actuators, fluidic circuit elements, and body features – ready to use,” said study co-author Kristen Edwards.