TouchUp is a project initially developed to help a middle-aged woman who lives with multiple sclerosis (MS) in a caregiving facility. Due to the effects of MS, she has limited hand and arm strength to push the buttons on the handheld controller used to adjust her bed, a Hillrom-8400. Our... Read more »

Dodecahedron Speaker for Desktop 3D Printers

At normal listening distances, an array of twelve speakers arranged on the faces of a dodecahedron is a very good approximation of a point sound source, and the sound waves it produces are very close to perfectly spherical. A dodecahedron speaker can be a useful tool in acoustics research, and... Read more »

Operating Railroad Grade Crossing Signal

It seems that no matter how much things change, one thing that is always constant is a kid’s fascination with all things trains. When my son was about 4 years old he was fascinated by passing trains. Even more captivating to him was the railroad crossing signals which would flash... Read more »

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