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Open Hardware/Modding: 3D Printing and DIY Air Quality Sensor

Submitted by Roy Schestowitz on Sunday 22nd of August 2021 04:14:44 PM

  • Building RepRap 3D printer · GeekSocket

    It’s a hacker’s dream to have a 3D printer on their desk. I had seen 3D printers on television when I was in school. I wanted to own a 3D printer since I saw one in real life at the reserved-bit hackerspace. My brother keeps building different mechatronics projects. So, having a 3D printer was going to help him build more complex, precise parts in less time for his projects.

    In the last couple of years, Creality (and probably other companies too) brought affordable 3D printers to the market. These are available from ₹12-15k on Amazon in India (prices keep fluctuating).

    While the prices are comparatively less than other printers like Prusa i3, it is still a significant amount of money for us. On top of it, we had questions like, what if it does not work as expected, or keeps failing? Because my brother’s friend has a printer, and he said that only 1 out 3 prints are usually successful for him.

  • DIY Air Quality Sensor

    A while back, I stumbled across the AirGradient project – a DIY air quality sensor built on the ESP8266 platform – and thought it would be interesting to build one to track the air quality where I live. AirGradient supports sensors for temperature/humidity, CO2, and – most importantly for air quality – PM2.5.

    Of course, these are all low-end consumer-grade sensors. I wouldn’t trust them with my lung health, but I figured it’d provide another data point to add to the available local air quality measurements.

»

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