Real silent - Ender 3 (pro) - Dual 80mm fans Hot End

thingiverse

First attempt at a fully silent hot end ! I made a new fan mount for two 80mm fans for my Ender 3 Pro and it works pretty well ! With a silent motherboard and 120mm PSU fan mount, now my printer is completely silent ! ###*2020-10-31 Update* - Better BLTouch placement ###*2020-10-25 Update* - Now in two parts to print easily - Two M3x6 bolts and nuts to join them - Optionnal BLTouch mount - Added clearance for X axis ###Features : - Dual 80mm fan mount - Fits Ender 3 stock axis - Uses original hardware to mount on printing head ###To come : - Add LED mount ###Additional information : - Hotend cooling fan is powered through an adjustable buck converter using 24v direct from PSU and set to 10v output - Part cooling fan is powered from the original fan header of the motherboard, I set max cooling fan speed at 25% in Cura, but it's not ideal... Fake PWM is provided by the motherboard, switching 0 to 24v at 8Hz, some 12v fans won't survive this ! The fan i'm using is OK with this, but makes a 8hz noise... I'm looking for a better solution ... - 2020-10-25 : Ordered an EBM-PAPST 8414NGL (24v/1500rpm) to replace part cooling fan