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Johns Hopkins University: Johns Hopkins students’ invention prints braille beer labels for local nonprofit. “When the local nonprofit Blind Industries & Services of Maryland reached out to Johns Hopkins University’s mechanical engineering program last year, they asked for one thing: a printer that adds braille writing to beer labels. Students in the mechanical engineering program’s senior […]

https://rbfirehose.com/2025/07/02/johns-hopkins-university-johns-hopkins-students-invention-prints-braille-beer-labels-for-local-nonprofit/

ResearchBuzz: Firehose | Individual posts from ResearchBuzz · Johns Hopkins University: Johns Hopkins students’ invention prints braille beer labels for local nonprofit | ResearchBuzz: Firehose
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Devin Berg is a Professor of Mechanical Engineering who posts videos about this topic, and also engineering videos by other experts. You can follow Berg's video account at:

➡️ @berg

There are over 100 videos on this account. If they haven't all federated to your server yet, you can browse them all at toobnix.org/a/berg/videos

You can also follow his non-video account at @drb

toobnixDevinI am an engineering professor from Wisconsin, USA who teaches courses in a variety of subjects. I believe there is value in making engineering more approachable and accessible. Support: https://ko-...
ieeexplore.ieee.orgABENICS: Active Ball Joint Mechanism With Three-DoF Based on Spherical Gear MeshingsThis article presents an active ball joint mechanism (ABENICS) enhanced by interactions of spherical gears. The gear-based joint drives three rotational degrees of freedom (RDoF) without slippage. The capabilities were inspired by the unique interactions between two different innovative gears [the cross spherical gear (CS-gear) and monopole gear (MP-gear)] and the superimposition of those interactions by the CS-gear's quadrature spherical tooth structure. One MP-gear constrains two of the three RDoF of the CS-gear. The driving module which drives the MP-gear converts this “constraint” into a “drive” and drives the CS-gear with two RDoF. The CS-gear orthogonally superimposes the interactions caused by two MP-gears to achieve three RDoF driving forces. The principle was revealed by analyzing an equivalent linkage modeled on the mechanism of ABENICS. The linkage also led to the kinematics and torque equations. The theory and physical characteristics of ABENICS were verified in comprehensive and continuous positioning experiments on manufactured prototypes. The flexibility of the actuator placement was also verified in different configurations of the driving modules. The active ball joint, ABENICS can transmit high torque and reliable positioning in three RDoF without an orientation sensor, which applies to robot joints and orientation control mechanisms.

#introductions

Hi, I'm Brian.

I'm a PhD #Materials #Scientist who works part time as an instructor/lab manager and as a consultant for various companies. I love #Mentoring people and helping companies turn scientific curiosities into #Prototype devices.

I've also worked in #Chemicals and #ChemicalEngineering, #ElectricalEngineering, #BioEngineering, #Physics, and #MechanicalEngineering

If a project addresses #Energy, #Environment, #Health, or #RareEarths especially I am into it.