I'm still a few days away from receiving my printer and honestly with all the parts I ordered to go with it I am probably looking at next weekend before I actually get to build this printer. So for now I will just keep finding and printing parts to get this thing built right the first time out. I found a layer fan duct that holds a 40mm fan and then I found a 40mm fan velocity stack. And this is the assembled layer fan for the new printer..