BTT Octopus 140mm fan mount
thingiverse
This is a 140mm fan mount and cover to line up with the mounting holes on a BTT Octopus board. Using M3 nylon standoffs to mount the board to your printer, add some more on top of the board (to suit your height away from the board) and mount the fan to these. I'm using a Noctua 140mm redux 900 rpm fan which keeps the board and drivers (with heatsinks) at more or less ambient temperatures and is whisper quiet. Remember to change your fan jumper on the BTT octo board to match your fans voltage before mounting.
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