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Components

	KF-128-2P 3.81MM terminals	x 2
	3W 51 Ohm resistor	x 1
	1N5819 Diode	x 1
	35V 220uF capacitor	x 1

Tools, APP Software Used etc.

	KiCAD Kicad
	Autodesk Fusion 360 Autodesk
	circuitjs1

Description

3D Printer Fan PWM Noise 100% Elimination PCB

The project is designed for 12V and 24V 3D printers with fans of 0.5-2.5W.

Full info in the project video: https://youtu.be/v7Fc8p8aaxc

Short Summary:

Advantages:

Fully eliminates the noise

Disadvantages:

Reduces the max fan speed
Not linear voltage vs fan speed % curve

For 12V printers use a 3W 25-Ohm resistor (limits max current to 12/25=480mA).

For 24V printers use a 3W 51-Ohm resistor (limits max current to 12/25=470mA).

For 1.2W fans use a semi-closed enclosure.

For 2.4W fans use an open-style enclosure.

220uF or 330uF 35V electrolytic capacitors can be used.

When ordering, you can use default settings and choose only the color you like.

Components are not included. It is only the PCB!

Schematic and Layout

3D Printer Fan PWM Noise Full Elimination KiCad & circuitjs1 files

3D Printer Fan PWM Noise Full Elimination KiCad & circuitjs1 files.zip

CAD-Custom parts and enclosures

3D Printer Fan PWM Noise Full Elimination PCB Enclosure

3D Printer Fan PWM Noise Full Elimination PCB Enclosure.zip

Download Gerbers Download BOM(Bill of materials)

Jul 25,2022

3,141 views

3D Printer Fan PWM Noise 100% Elimination PCB

This simple circuit eliminates extremely annoying PWM fan noise.

3141

10.00 (1)

Published: Jul 25,2022

Download Gerber file 32

BOM(Bill of materials)

PCBWay Donate 10% cost To Author

File Last Updated: 2023/03/27 (GMT+8)

File update record

2023-03-2717:17:54

Parts List (BOM) is updated.

Only PCB

PCB+Assembly

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Topic

3D Printing

3D printing

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KF-128-2P 3.81MM terminals

3W 51 Ohm resistor

1N5819 Diode

35V 220uF capacitor

KiCAD

Autodesk Fusion 360

circuitjs1

3D Printer Fan PWM Noise 100% Elimination PCB

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