Anycubic i3 mega extruder stepper fan holder aiming at filament (with or without ON/OFF switch)

Description

Following Several Broken Pla Filament Due To Excessive Temperature (For The Filament) At The Extruder Stepper Level, I Designed A Holder For A Noctua Nf-A4X10 Flx Fan In Order To Have It Blowing Air Directly At The Filament. The Filament Stays Cool And I Have Never Had Any Broken Filament After That ! I Added A Place To Put An On/Off Switch If You Do Not Want To Have The Fan Spinning All The Time When The Printer In On. Can Be Used When A Filament Gear Knob (Https://Www.Thingiverse.Com/Thing:2747964) Is In Place (But May Slightly Reduce The Air Flow On The Filament). Should Work Even Within An Enclosure (But I Did Not Try It And It May Be Useless For Abs).

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