Elegoo Neptune 3 Max - XXL 3D Printer - Review 

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ELEGOO Neptune 3 Max FDM 3D Printer, Massive Printing Size of 420x420x500mm
Dual-Gear Direct Extruder
The dual-gear direct drive extruder with gears made of SUS303 stainless steel features adjustable extrusion force and a 3:1 reduction ratio, which ensures smoother filament feeding and stable & accurate printing, greatly reducing nozzle clogging and gear jumping problems. Ideal for printing PLA, PETG, ABS, and flexible filaments such as TPU.
Massive Print Volume
With the largest ever build volume of 420x420x500 mm /16.53x16.53x19.68 inches, ELEGOO Neptune 3 Max gives you generous printing space to let your creativity run wild, whether for printing larger models, or printing in batches.
Auto Bed Leveling + Auxiliary Leveling
The non-contact high precision sensor automatically scans 63 points of the hotbed to compensate for any unevenness and inconsistencies of the printing platform. You can also use the hand-twist knobs under the build platform for auxiliary leveling to achieve a nice first layer.
Stable & Quiet Printing
The Z-axis is designed with dual lead screws and dual-motor drive for more stable and precise movement of the print head, and the double tie rod structure enhances the stability of the Z-axis gantry.
With an STM 32-bit silent motherboard, the X/Y/Z/E axes are all driven by high-precision stepper motors to effectively reduce the printing noise under 50 dB.
PEI Magnetic Platform
PEI magnetic platform with a special coating and spring steel sheet for strong adhesion and anti-warping, so you can easily remove or eject the print models by slightly bending the print steel sheet. The 420W high-power hotbed can quickly heat up to 100°C.
Removable Capacitive Touchscreen
The 4.3-inch removable magnetic capacitive touch screen can be operated by hand-held or fixed on the base, with a print model preview function to preview the model image during printing and observe the printing progress, support multi-language freely switch. There also comes with a drawer tool box on the machine base to store tools used by the printer such as Allen wrench and nozzle accessories.
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