I usually rely on reviews to make my decision but the options for this type of heater block are limited. There are plenty of cheap aluminum ones out there and another copper plated option that got bad reviews. If in doubt about a solution, spend $12 and choose this one. You can immediately feel the difference between this block and aluminum. The weight alone is impressive. I'm not sure if this negatively affects the quality of my prints or even the heat. But I was able to install a p100 thermistor, standard E3d v6 parts and an x; I set it to 300 degrees and it worked great. All I need now is some nylon to print with. And just in case you're worried about the silicone case. He will fit too.
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