improving the cooling air flow ,more on the print part & less on the nozzle tip<div> less X/Y axel noise resonance because of the high frequency vibrations of the fans when high speed.</div><div><a rel="nofollow" target="_blank" href="https://youtu.be/2Ho2c40_AXo">https://youtu.be/2Ho2c40_AXo</a><br></div>
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