276°
Posted 20 hours ago

Noctua NF-F12 PWM, Premium Quiet Fan, 4-Pin (120mm, Brown)

£9.9£99Clearance
ZTS2023's avatar
Shared by
ZTS2023
Joined in 2023
82
63

About this deal

It may be easier to just sidestep the issue by going for a 24V Ender 3 fan upgrade from the get-go.

The correct level of cooling also depends on your aims– less results in stronger prints while more generally leads to a high-quality finish. Here are a few viable options, all of which have a far lower decibel output than the mainboard fan that comes with the Ender 3: Since the PWM signals control the motor using square waves of 25kHz, you can reduce them. These waves form a duty cycle that will regulate the fan’s speed. Lower the duty cycle to at least 40% of the total time period of the PWM signal. Lower voltage—By dropping the voltage across the series, you automatically reduce the power reaching the supply pin. As a consequence, you lower the speed of your Noctua fan.

Petsfang: A go-to design for many tinkerers looking for an Ender 3 cooling fan upgrade, the Petsfang features a duo of ducts on either side nozzle to deliver optimal cooling and employs a 40×10 mm fan. The Petsfang also exists in a suitable version if you’re looking for an Ender 3 Pro fan upgrade or Ender 3 V2 fan upgrade rather than the original Ender 3.

The most prevalent method to control the speed of the Noctua fan is through PWM (Pulse Width Modulation). The latest Gen6 iteration is the best yet – better cooling performance, improved ease of assembly, and compatibility with a broad range of extruder and hotend upgrades. For example, all fans have a specified minimum threshold voltage rating. If it falls below the specified threshold, the fan stalls. How To Control Noctua Fan Speed With PWM As the fan sits inside the mainboard casing, you have a bit more freedom when it comes to fan size – 40 x 10 and 40 x 20 mm, or you can install a 3D printed mainboard cover extension to use a larger fan.

Turn off automatic mode—If you notice that your fan runs slow and you want to change the speed, then turn it off. Switch off the automatic fan control on your BIOS. It will keep your fans running at full speed. While first and foremost a duct upgrade, it’s also an entire system to upgrade almost every component attached to the print assembly. Keep in mind that there are some pros and cons to this program. For instance, SpeedFan offers lots of features and is free to use. However, its user interface looks rudimentary and outdated in current standards. If you use a 3-pin version, you’ll need a workaround such as voltage adjustment (see how-to instructions later in this article).

Aside from the noisy mainboard, much of the noise comes from the fans dotted around the printer. An Ender 3 fan upgrade can drastically reduce the decibel output, a must-have quality-of-life improvement if you’re a regular user. Better Bridging, Overhangs, and Overall Print Quality It’s compatible with all 40×10/20 mm fans, though the project was initially conceived to pair best with Noctua parts. Fang: Developed by Thingiverse maker mr-cal, the Ender 3 Fans borrows the same basic dual-duct design as the Petsfang and works as both a classic Ender 3 and Ender 3 Pro fan upgrade. There are several steps to changing the speed profile in BIOS, so let’s go through each step so that you know exactly how to do it. What Is BIOS? You may have to press a special key before the computer loads up fully—for example, the F2, F10, or DEL button. Your computer will probably tell you what button to push on the screen during the boot-up process.

Enable the “CPU Smart FAN” profile and set it to whatever you want. It will keep your fan running at a slow speed as long as it’s within the specified voltage range. From here, you can then choose the fans you want to disable or activate. Adjust your fan’s speed settings by inputting numbers manually or with a slider. Just like that, you get your desired fan speed. For Noctua fans with 4-pin connectors, you can also deactivate automatic fan speed control in your BIOS settings.

The right fan for you is going to depend on whether you are prioritizing cooling power to improve the quality of your prints, or are more concerned with noise reduction.

The Overclockers Difference

With all this in mind, here are recommendations for both a 40 x 10 mm and 40 x 20 mm Ender 3 Hotend fan replacement: It’s vital to understand that tinkering with the PSU can be harmful to not just the power supply but also to you. If you want to know more about Noctua fans, read our other blog posts that answer some of the most popular questions. You can also turn off fan sensors and (if the option exists) choose the [Disabled] mode on speed settings.

Asda Great Deal

Free UK shipping. 15 day free returns.
Community Updates
*So you can easily identify outgoing links on our site, we've marked them with an "*" symbol. Links on our site are monetised, but this never affects which deals get posted. Find more info in our FAQs and About Us page.
New Comment