Velleman Vertex Nano K8600 Fan Duct
Description
A custom fan duct for the Vertex Nano printer. I used four M3x16 screws to mount the 12V 30x30mm fan and a drop of hot glue to mount the duct to the Y-carriage. Sotfware configuration: I wired the fan to the LED strip header, and swapped the LED connector to the unused 12V header. Then I modified the Marlin firmware to make the fan speed adjustable. You can change the FAN_PIN from 8 to 7 in pins_K8600.h Don't forget to comment the line "analogWrite(7, map(vertexLedBrightness, 0, 100, 0, 255));" in Marlin_main.cpp by adding // in front of the line. Upload the new Marlin firmware and you're good to go!
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