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6. 3 55Amp MOSFET (with LED indicator, the actual output is restricted by the PCB board
and the connector), all 3 MOSFET are equipped with heat sink to ensure sufficient heat dissipation
and stable operation.
7. Support 5 A4988 stepper drivers (3 for X/Y/Z axis, and 2 for extruders); the subdivision of
stepper motor can be setup by dial switch, eliminating jumper caps, easier to operate.
8. 3 temperature sensor input (100k thermistor is recommended)
9. Extended LCD and SD card interface support both LCD2004 and LCD 12864, with which
you can print without your PC.
10. The firmware is the prevalent Marlin, which is known for stability, usability, and
high-performance.
Update log:
1. A 3-pin straight pin is added to connect with 3D touch auto leveling sensor.
2. The USB connector will not provide 5V for the board, if you need to refresh the firmware,
please provide external power supply.
3. The power port has been changed from hollow to solid one to provide higher
current-carrying capability.
4. The three heater connecter has been changed into blue ones: 2-pin RC301 5.0mm 15A
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