rutierut

Nice work man, ordered some 12E's too!

I assume you mean the wires to the ESP8266? I'm using a particularly thin wire that easily goes though the holes in the ESP, after that you can just fill these holes with solder and the wires will not fall off (some flux might help, though it's unnecessary if you use solder with a flux core). Concerning the temperature, just take a break when the esp8266 gets too hot to touch.