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Geeetech MKIV Extrusion J-Head - Black (1.75mm Filament/0.3mm Nozzle)
This J-Head Hot End is designed based on other nozzle. It's very simple by reducing the number of custom machined parts to a bare minimum. The J-Head Hot End can easily and well interface with the most popular RepRap extruders. The filament path is same with the one of an already proven design; it can be used to print reliably with both ABS and PLA. If using PLA£¬ it requires a small fan to provide air-flow through the cooling vents milled in the sides of the nozzle holder. Besides£¬ the Hot End has another two advantages. Heat transmission is more efficient as there is no thermal junction where a separate heater screws onto the nozzle. And a resistor is used as a heater. There is no need to wrap nichrome wire or to bake a heater core.