UPDATE : Design in STL is different it has been corrected following the first version (add of a hollow to ensure the clearance of the wheels on the Y Axis)
Replacement Ender 3 Mainboard Upper Case cover for a 80mm fan. (80 x 80 x 25)
Inspired from others design i decided to build my own upper case cover to be able to install a 80mm fan.
You will need :
1x LM2596 Step Down Voltage Converter
1x M3 Washer
1- Cut the 2pin connector from the factory fan with about 70mm of wire.
2- Connect the Positive and Ground to the "IN" onto your LM2596
3- Start your Ender
4- On your screen go to Control / Temperature / Fan speed and set it max (255)
5- Your LM2596 should now indicate around 24v
6- Ajust the voltage to around 12v by turning counterclockwise the screw on your LM2596
7- Shutdown your Ender3
8- Connect your Positive and Ground wire from your 12v fan to the "OUT" onto your LM2596
9- Insert and screw the LM2596 in the case
10- Insert and screw your 12v fan in the case
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