Gearstruder J4 - Dual Drive Extruder
thingiverse
The minimalist design of the extruder housing is optimized for seamless integration with the Printrbot Gearhead drive gears, 1.75mm filament, and a powerful NEMA14 motor. A secondary gear is inserted from the side, secured in place by M3 screws or setscrews that adjust tension to perfection. This ingenious design utilizes a robust bowden coupler from RobotDigg, ensuring a smooth and efficient printing experience. It's crucial to ensure the setscrew does not protrude on the primary drive gear, particularly when using a motor without a D-shaft. To achieve exceptional results, filament of top-notch quality such as Emerald Green PETG from Atomic Filament is used. For those seeking alternative options, a NEMA17 version and detailed information about multiple dual drive bowden extruders can be found on thrinter.com.
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