10 times less noise!
I just purchased my Creality Ender 3 Pro and after modified the HW(will write what I have modified later) and turning, turning, and more turning. It finally worked well after a month.
Many people in the Facebook group discussing what parts could self-print to upgrade. One of them was the dampening feet to reduce noise. I tested the noise level in dB with Google Science Journal APP. The test duration was 31 seconds with PLA, 0.2 layer high, 100% infill. Please see the results below.
My Testing Results
In my test, Dampening feet reduced about 11 dB* about 10 times less noise! This is quite amazing!
However, few people in Facebook groups mentioned that there might be other disadvantages, such as wobbling when printing tall objects and these feet might broken easily.
* A sound 10 times more powerful is 10 dB.
* A sound 100 times more powerful than near total silence is 20 dB.
Source: How stuff works
Print with Dampening Feet
Average: 22 dB
Max: 37 dB
Google Science Journal App recorded the noise level
I have printed the same Dampening feet to get the more accurate noise level.
See the printing of a Damping feet in action (With Dampening feet)
Print without Dampening Feet
Test Duration: 31 seconds
Average: 30 dB
Max: 48 dB
Google Science Journal App recorded the noise level
The noise was recorded during printing the Dampening Feet.
Download .STL files
All the .STL file can be downloaded from Thingiverse.com
Original design was from Ender 3 Damping Feet by redmaxver
The one I downloaded and tested was Ender 3 Complete Dampening Feet by rhin0xx
rhin0xx combined all 8 components together saved me some troubles.
The End
----------------中文版----------------------大減10倍音量
我剛剛在對岸淘了一台 Creality Ender 3s (和3 Pro是同一機種)，參考了網路上建議修改了一些東西（我之後會寫一篇我改了那裡的文章）之後就一直調整，換零件，又換零件，一直不斷的調整。大約一個月之後，它終可以正常的列印了。Facebook上有許多人都在討論哪些部分可以自行3D列印來升級這台印表機。其中一個討論很多的是減震腳，它可以減少噪音。我用 Google Science Journal APP 測試持續時間31秒再觀查它的噪音值 dB。我是用原廠的 PLA, 0.2 層高, 100% infill。測試結果請參閱下面說明。
我的測試結果
我的測試結果顯示，減震腳減少了大約11分貝(dB, 減了10倍音量)* ！這讓我太訝異了！
不過，Facebook群組中也有不少人提到其他可能缺點，例如在打印較高的物件時，機體可能會搖晃影響到列印結果，還有這些減震腳也可能很容易斷裂。
不過，Facebook群組中也有不少人提到其他可能缺點，例如在打印較高的物件時，機體可能會搖晃影響到列印結果，還有這些減震腳也可能很容易斷裂。
* 10倍的音量是10分貝(dB)
* 100倍的音量是20分貝(dB)
資料來源: How stuff works
加減震腳裂印測試
測試時間長度: 31秒平均噪音: 22分貝 dB
最大噪音: 37分貝 dB
Google Science Journal App 來記錄噪音值
加減震腳照片
我列印同一個物件來測試 加減震腳噪音
來讓測結果能更正確
加減震腳的列印影片
未加減震腳裂印測試
測試時間長度: 31秒
平均噪音: 30分貝 dB
最大噪音: 48分貝 dB
平均噪音: 30分貝 dB
最大噪音: 48分貝 dB
Google Science Journal App 來記錄噪音值
上方的噪音值是列印減震腳時錄製的
