Anycubic Kossel PCB cooling 40x40 fan  stepper driver Aero Tunnel
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Anycubic Kossel PCB cooling 40x40 fan + stepper driver Aero Tunnel

If you have installed a heated bed on your printer and you think that the control board needs cooling use this thing ...

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Anycubic Kossel PCB cooling 40x40 fan + stepper driver Aero Tunnel alternatives