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A silicone sock helps keep the heat from the hot end from radiating down onto the freshly-printed parts, which have a blower fan cooling them. The sock also helps keep the hot end hot and away from that stream of room-temperature cooling air blowing at the part. As such, the sock is a thermal isolator, helping to keep the hot bits hot and the cooler bits ...


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The lump at the top of the heatbreak is because there is a gap between your bowden tube and the heatbreak. Liquid filament is leaking out of the heatbreak and solidifying there. When you reassemble, you need to close this gap. There should not be smoke coming out of your nozzle. Maybe when it is new, there might be a bit of oil that would smoke, but it ...


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