This is the second part of our journey to take the Ender 3 Pro from purchase to printing flexible TPU parts for our drones and quadcopters. In this second part, we focus on noise management by swapping the stock hot end fan with a quiet Noctua 40mm x 20mm fan.

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What you need for the upgrade
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40mmx20mm Fan (see links below)
DC-DC Step Down Converter (see links below)
Printed Parts (see links below)
4 x M3x25mm Screws (if using the first design)
1 x M3x8mm Screw (if using the second design)
Glue (if using the second design)
Soldering Iron
Shrink Tubing
Voltmeter
Zip Ties
Doublesided Tape
Misc Tools (Allen Keys, Cutters, Etc...)

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Items suggested in this video
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Noctua NF-A4x20 FLX, Premium Quiet Fan, 3-Pin (40x20mm, Brown):
Amazon US: https://amzn.to/3pnl6Zq
Amazon Canada: https://amzn.to/2JpFqcE

Lysignal LM2596 DC-DC 3A Adjustable Step Down Module Buck Converter:
Amazon US: https://amzn.to/34Htg74
Amazon Canada: https://amzn.to/2HNAb6d

AstroAI Digital Multimeter:
Amazon US: https://amzn.to/2LY7oO0
Amazon Canada: https://amzn.to/3fJKULs

SUNLU 3D Printer Filament, PLA Filament 1.75 mm Black 1kg Spool (2.2 lbs)
Amazon US: https://amzn.to/3rq3i1q
Amazon Canada: https://amzn.to/3ljF7xi

OVERTURE PETG Filament 1.75mm, 1kg Spool (2.2lbs), Black:
Amazon US: https://amzn.to/34JN7Cx
Amazon Canada: https://amzn.to/2KT1YUd

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Thingiverse Things
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Ender 3 Hotend Cap for Noctua NF-A4x20 FLX: https://www.thingiverse.com/thing:355...
MinV2 Ender 3 fan mount: https://www.thingiverse.com/thing:474... (original link down https://www.thingiverse.com/thing:343...)
Ender 3 Pro - Fang for 40x40x20mm Fan Cooler: https://www.thingiverse.com/thing:367...

#djifpv #fpv #drones

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