An additive 3D printer with automatic material extraction and cleaning is a complex mechanism
which combine multiple elements to transport air and powder. We have developed this invention
which allows to remotely sense physical properties of the air and powder (such as air-pressure,
differential pressure, temperature, humidity, filter status...) thanks to a combination of modular
sensor devices connected through an electronic chain which constantly sends information to the
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INC, HP, "REMOTELY CONTROLLED CHAIN OF MULTI-SENSING DEVICES", Technical Disclosure Commons, (November 29, 2018)