WARNING: Do NOT print this!
And if you do, use it for decoration; not for hot ends!!!
And if you really, really want to use it for a hot end, then use the PLA print to then make a mold, and THEN mold it in silicone, which can stand higher temperatures.
This is a 3D model of a silicone thermal sock that came with my Swiss All Metal Hot End. It looks like a hard thing but it's actually soft, like rubber, and is high temperature resistant, and you wrap it around the heater block of the hot end, to protect it from excessive cooling by the fans, I suppose.
i made this model so as to help me design a fang mod; my "Z-X" mod.
And I'm putting it out so other mod designers can benefit.