Ender 3 cpu fan cover with rear positioning

cults3d

Edit 11/22/2019: Created another version that has baffles in it to help suppress more of the sound. I included a photo of how the baffles are placed. Though it seems the fan is not overworked trying to pull air through it, use at your own risk. Created a duct to protect the cpu fan while it pulls air from the back of the printer instead of the front. Did this to help deaden the sound coming from cpu fan, which it does baffle it more than it does while it faces forward. All three screws used to hold down the lid on the cpu box is used within this design.