You don't need hot melt glue for the thermistor, but it helps if you have it because it only comes with thermal paste. Works very well for me on an Ender 3v2, but it's a v6 nozzle, not a mk8, so note the nozzles you currently have are mk8 and the thread isn't long enough. This can lead to leakage and similar problems. With the right v6 attachments, that's no problem. It comes with v6 0.4mm nozzle but I upgraded to 0.6mm and never looked back. I did this hot end update at the same time as making the Noctua fan mod and it prints absolutely beautifully. Much better and MUCH more stable than a standard thermal block. The quality is there. You need a new fan shroud, the butt doesn't go with it. So I advise you to do a fan upgrade at the same time. Just make sure you print out all the necessary details before you switch. Make sure your steps are correct.
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