Screwdriver

Automated Fan Speed Controller

Automated Fan Speed Controller

When our house was built, I put a server room next to my office. Unfortunately, it had only a small bathroom-style fan with a 4″ duct leading outside, and during the summer I had to leave the door open, which made my office hot and loud. So I installed a larger fan, along with an […]

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Dodecahedron Speaker for Desktop 3D Printers

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 is definitely a fun toy […]

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