Some awesomely powered fans on the HE280 hotend throw a LOT more air down and out the bottom than we had seen in testing, so we're molding air baffles that fix this. It's a really simple quick fix, and the printed baffles only take a couple minutes to print! Here's a link to a quick video on how to install them on the hotend. It only takes a couple minutes https://www.youtube.com/watch?v=NE9qf2gt75g Once you've installed it on the hotend, run the autotune for whatever temp you're wanting to print at. Below is a sample Gcode to send to calibrate the hotend for appx. 220c M303 P0 S220 X0

Download and print a couple of these out of preferably ABS, Nylon or PETG rather than PLA. PLA will work.

Attribution - Creative Commons

HE280, Baffle, Blocker, Hotend