for the longest ive been wanting a larger spraying area in my hobby room i finally made one, its the mahi mahi because i was watching bio dome when i came up with the idea to make it. its 90% scrap made only thing i bought was the duct mount. 
i learned two things from this project  
 
1 i suck at laying tiles and measuring 
2 was inside the blower 
  
  
heres the mahi mahi i still have to make the 12x12 filter mount