Part Cooling Fan

I am thoroughly impressed by this printer. The difference between it an another kickstarter printer I backed are night and day. I have had to tweak the design of that other printer so much there is barely anything left of it. It took me four months to get a decent print from it where as with the SnapMaker the very first thing I printed was decent. The only thing I am curious about is why there isn’t a part cooling fan for the 3d printing module. Most of the models I print include quite a bit of bridging and a part cooling fan goes a long way at improving that.