11 Apr '16, 8am

Colorful Fan and LED Controller for 3D Printer

Colorful Fan and LED Controller for 3D Printer

[Dave] just couldn’t take the ambient noise from his Lulzbot Mini anymore, so he built a fancy fan controller for it. He measured some points on the printer’s Rambo controller board to see what actually got hot during a print. The hottest components were the motor drivers, so he taped a thermistor to them. He also placed one in the printer’s power supply. He replaced the main fan with a low noise model from Noctua (which have the most insanely fancy packaging you could imagine for a computer fan). The software on an Arduino Nano now idles the fan at an inaudible 650RPM, if an unacceptable temperature increase is detected, it increases the fan speed for a period, keeping everything nice and quietly cool. The graphics display was added because, “why not?” A classic reason. The graphics runs on a hacked version of Adafruit’s library . It took him quite a while to get the grap...

Full article: http://hackaday.com/2016/04/11/colorful-fan-and-led-contr...

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