Stealthburner Cover / external fan SB2240/SB2209

-this is the deeper/wider version of the cover ~48mm deep (front to back if you're looking @ front of stealthburner)

-I use freecad, I've included that file, the STEP file and the STL for anyone that wants to keep modifying 

-if you're using this on a Voron 2.4, make sure you watch z-belt clearance front/right. I had to move my bed back a bit so it wouldn't crash (button head cap screws to mount the fan would look better and help this)

people have mentioned difficulty in printing some of these remixes / I print thes sitting on the back edge (again if you're looking at SB straight on), I use organic supports just for the flat area inside where an internal fan would sit and to support the top of the round opening (use paint on supports so it doesn't try to support the bolt holes

I just added 3mm of thickness to the shell and the 4 holes.  M3 bolts can secure a 30x30mm fan externally.