Prof. Anson Ma demonstrates the machine learning capabilities of the HuskyJet 3D printer at the SHAP3D lab in IPB.
Inkjet printing has evolved from a graphics and marking technology to a broader variety of additive manufacturing and 3D printing processes for electronic, optical, pharmaceutical, and biological applications. The success of adopting inkjet technology for these newer applications is contingent on whether the ink materials can be consistently and reliably jetted by the print systems. Currently, each printer-and-ink combination requires calibration by trial and error, which consumes a considerable amount of time and materials. IPB researcher, Prof. Anson Ma, Site Director of SHAP3D, teamed up with UConn machine learning expert, Prof. Qian Yang, to demonstrate a new concept of “autonomous 3D printing”, leveraging an active machine learning method they developed to efficiently create a jettability diagram that predicts the best conditions for jetting an ink from a printhead.
Briefly, a camera is used to image the printhead and capture the behavior of ink jetted from a printhead. Starting with a few randomly chosen conditions, a machine learning algorithm predicts the optimal jetting conditions and then “cleverly decides” on the next set of experiments that can further improve prediction accuracy. After performing those experiments, the algorithm analyzes the newly acquired images, updates the prediction for the desired jetting conditions, and iteratively selects the next experiments, continuing autonomously until a small experimental budget is reached. This approach has achieved a prediction accuracy of more than 95% while considerably reducing the number of experiments required by 80% compared to a typical grid-search approach. This novel approach is especially powerful for optimizing complex print systems with many tunable process parameters.
This work was recently published in the journal 3D Printing and Additive Manufacturing (http://doi.org/10.1089/3dp.2023.0023) and led to a pending patent application (WO 2023/2788542).
Connecticut and University of Connecticut (UConn) are national leaders in Clean Energy and Sustainability. UConn was recently selected by the U.S. Department of Energy to lead a nationwide decarbonization effort, centrally coordinating critical activities that can facilitate the adoption of Onsite Sustainable Energy Technologies among large energy users. This honor builds upon UConn’s reputation as a national leader in advancing clean energy.
UConn’s Innovation Partnership Building (IPB) at UConn Tech Park is a focal point for businesses interested in reducing their carbon footprint. By connecting companies to critical energy research, incredible high-tech facilities, and programs like Senior Design projects and professional education, the IPB is committed to driving progress in sustainability, and securing a sustainable, efficient, and profitable future powered by clean energy.
Recently, the IPB began conversations with ASSA ABLOY on applying state-of-the-art research towards achieving ASSA ABLOY’s sustainability commitments. Discussions led to options for student engagement, particularly through UConn’s Senior Design program.
Each year, UConn’s School of Engineering capstone Senior Design program engages seniors, faculty, and industry in a yearlong partnership to develop and apply innovative solutions to engineering challenges faced in real-life business settings.
In 2023, over 240 Senior Design projects were sponsored by more than 120 global and domestic participating organizations representing manufacturing, pharmaceuticals, medical, consulting, and utilities sectors. Students and their supporting faculty advisor work together with an industry sponsor to develop solutions to real-life problems in the field. The students research and analyze the problem, conceptualize design solutions and present solutions that can make a real difference to local industry and the state of Connecticut.
Recognizing the potential of enlisting student help to achieve their sustainability goals, ASSA ABLOY sponsored two UConn Senior Design projects.
ASSA ABLOY is the global leader in access solutions, operating in over 70 countries around the world with industry leading innovation and technology, making them a perfect fit as a sponsor for the Senior Design projects.
ASSA ABLOY supported three Mechanical Engineering and Materials Science Engineering teams with two projects: reduced carbon footprint door construction, and improved materials for door-locking cylinder products for increased security. Through mentorship from ASSA ABLOY employees Dan Glover, Product Manager, Door Group; Dan Picard, Senior Director of Innovation, ASSA ABLOY Opening Solutions Americas; and Clyde Roberson, Director of Product Management and Tech Services, Medeco Security Locks, the student teams spent two semesters dedicating hundreds of hours to their projects. Final projects were presented at an end-of-year public demonstration, where hundreds of teams shared their projects and findings.
UConn Senior Design Day 2023, Gampel Pavilion
“The projects we sponsored were based on some real challenges we have,” Picard explains. “We can only do so much with our limited resources, specifically on challenges surrounding science-based targets and materials themselves. We don’t have materials scientists or materials engineers in-house, so we must go to the experts. Fortunately, UConn has a wealth of experience and knowledge, so it made sense to sponsor the Senior Engineering Capstone projects.”
Sponsoring these projects also gave ASSA ABLOY the opportunity to meet new subject matter experts in these different areas and collaborate with UConn’s faculty. Picard affirms that “The engineering teams at UConn have access to some amazing technology, such as theoretical tools that help us to understand how materials function. These tools enabled the door construction project to do finite element analysis and see potential product failure points through all different types of door assemblies. They could test different amounts of force and impact resistance. This is something we do in our test lab, but they were able to simulate on a computer. The expertise of this software is something we don’t have in-house.”
Out of the 240 teams participating in Senior Design, one of ASSA ABLOY’s sponsored teams placed 3rd in the Materials Science and Engineering department competition. The project that focused on improving door locking cylinders for increased security and drill resistance, involved in-depth research of harder and tougher materials that improve the product but are easier to manufacture and machine.
UConn Senior Design MSE team 3rd place winners: Jonathan Bane, Matthew Carragher & Charles Schwarz
“This team placing third is huge,” Glover explains. “They were competing against major companies and corporations like Sikorsky Helicopter, NASA, and Pratt and Whitney. They were also featured in UConn’s magazine, where only four projects were listed. It was an exciting achievement for them and for us as sponsors.”
What’s next for these winning ideas? They aren’t just forgotten at the end of the year. The work by the sponsored teams is being served as a baseline to kick-start new innovation initiatives at ASSA ABLOY.
“The teams at UConn provided us with ideas and insights that will help guide our future product development,” according to Picard. “We were beyond impressed with the results, particularly in lowering the CO2 footprint of the door, while maintaining its performance and integrity, and the investment was worth it. We had a real-life problem and were able to share our experiences with the students. In exchange, they provided us with hundreds of hours of research and offered potential solutions to our challenges.”
Both Glover and Picard comment on invaluable personal experiences during the program. “It’s an extra “above and beyond” what we normally do, but I learned so much,” Glover says. “I thank ASSA ABLOY for the opportunity to get involved and I would recommend we do it again in a heartbeat! It is such an enlightening experience and working with young engineers that see problems differently is energizing. We are helping develop our next generation of innovators and potential ASSA ABLOY teammates – it’s so rewarding.”
If your organization is interested in sponsoring a future UConn Senior Design project or partnering with IPB at UConn Tech Park to advance efficiency and competitiveness through sustainability, we would love to hear from you. Please contact:
Senior Design
Charles B. Maric
Director of Technical Business Development, Senior Design Projects
UConn School of Engineering
Charles.Maric@UConn.edu
860-428-2258
IPB Partnership for Sustainability
Michael DiDonato
Business Development Manager
Innovation Partnership Building at UConn Tech Park
Michael.DiDonato@UConn.edu
203-671-8719
UConn and U.S. Department of Energy’s National Renewable Energy Laboratory (NREL) announced a new research partnership in October 2022. Hosted at UConn Tech Park, the collaboration will address global energy challenges including energy efficiency and resiliency, renewable energy technologies, and smart grid innovation, helping shape the response to these critical challenges of the 21st century.
Emmanouil Anagnostou, interim Executive Director of UConn Tech Park, and Junbo Zhao, Eversource Energy Center Grid Modernization Lead at IPB have started joint positions as Research Scientists at NREL under the partnership. They will be affiliated with the Grid Automation and Controls Group at NREL.
Among the many goals of the partnership, UConn and NREL will work together to develop solutions to clean energy challenges in the Northeast and increase funding opportunities not otherwise available to either individual institution. The program also enables undergraduate and graduate students to work jointly with NREL scientists and UConn faculty.
“I am proud that UConn is playing an important role in this crucial sector, and I am excited to see the creativity and determination our faculty and students bring to this work.” UConn President Radenka Maric says.
“NREL sees the partnership with UConn as a critical part of achieving clean energy at scale that brings together talent from both institutions to further our collective goals,” says Dr. Ellen Morris, director of University Partnerships at NREL.
