I am having some hot end cooling issues when printing Protopasta PC-ABS alloy.

At first my enclosure wasn't good enough so I would get peeling from the bed, but now that I have improved the enclosure I am getting clogging around 1.5 hours into the print, presumably due to inadequate cooling of the hot end cold side.

I have ordered an E3D titanium heat break that may help reduce heat transfer to the cold side, but I was also thinking about providing outside air directly to the hot end fan so it can cool more effectively. Is there an already established way to do this for the MK3S?

My searches haven't come up with anything so far, but before come up with something myself I figured I'd check here.

I'd appreciate any help!