{"id":6852,"date":"2021-01-24T10:09:05","date_gmt":"2021-01-24T15:09:05","guid":{"rendered":"http:\/\/www.plastibots.com\/?p=6852"},"modified":"2022-05-29T05:01:17","modified_gmt":"2022-05-29T09:01:17","slug":"lulzbot-mini-2-fan-lighting-controller-2","status":"publish","type":"post","link":"https:\/\/www.plastibots.com\/index.php\/2021\/01\/24\/lulzbot-mini-2-fan-lighting-controller-2\/","title":{"rendered":"LulzBot Mini 2: Fan & Lighting Controller"},"content":{"rendered":"\n

I was so impressed with my Lulzbot Mini 1, that I decided to buy a Mini 2.  Holding true to my mantra, whenever I get a new toy, I can’t leave well enough alone.   So, I decided to re-create my original Mini 1 custom fan and lighting controller<\/a> with some tweaks and enhancements for my new Mini 2.  Two key drivers were to a) reduce fan noise, and b) add lighting with control.<\/p>\n\n\n\n

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How it works:<\/strong><\/p>\n\n\n\n

The brain is an Arduino Nano MCU, with Nextion HMI touch screen as an interface, 2 LM35 temperature sensors, a 12V Noctua quiet fan with RPM measurement and 12V LEDs.    video below)<\/p>\n\n\n\n

Although the Mini 2 made great strides over the Mini 1 in the noise category (the new stepper drivers make a huge difference), both the case and extruder fans are still noisy.  On power up the stock case fan is already noisy. Once printing starts it pretty much hits 100% and is on for the duration of the print. So, it had to go. The Nano monitors the temperature of the Eisny and dynamically adjusts the fan speed based on the driver temperature.<\/p>\n\n\n\n

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