In order to keep his 3D printing filaments from degrading, Dr. Scott M. Baker purchased a number of PrintDry containers off of Amazon. While expensive, they seal so tightly that they can pull a small vacuum, ensuring that moisture doesn’t enter your storage container, and the desiccant used to keep things dry can do its job.
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Unfortunately, he found that while most can maintain a vacuum with a little bit of work, many lose vacuum quickly without a little attention.
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Not satisfied with his filament only possibly being protected, Dr. Baker got to work creating a humidity, pressure, and temperature monitor for each of his sealed canisters . His first prototype featured an ePaper display, but between the limits of the ATmega328 microcontroller that he was using, power concerns, and a relatively high price per unit, he decided to rethink things and go wireless. His final design employs a […]
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