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I am having the same problem. I am running stock everything and the hot end gets up to temp without the fan. I've replaces the thermistor twice now and till get the timeout on it. Please Help! Thanks.

I've have recalibrated the head multiple times and every time it turns out like this!! Help

Im assembling my Rostock V2 right now. After putting the print head on and reading about the e3d i've decided i might want one (for the high temps and cool materials you can print). What things do you need to assemble (special mounts) or whatever. And finally is it to difficult to put on? Is it ...