RepRap Rambo 1.2G 3D Printer Control Board

RepRap Rambo 1.2G 3D Printer Control BoardIntroduce:Rambo 1.2G is a microcontroller board of 3D printer which integrates the stepper motor, hotbed, extruder, fan driver and thermometry in one.Rambo 1.2G is completely compatible with Arduino in that it adapts the same IC, ATMEGA 2560, with Arduino mega2560.3 additional resettable fuses are added to Rambo 1.2G to protect it from over current. What’s more, the motor drive current can be controlled with code. The present popular LCDs that Rambo 1.2G supports are smart controller 2004 and 12864.Features:1. Adopting the IC Atmega2560 and Atmega16u2 that are completely compatible with Arduino2. 4 interface for thermometry3. All interfaces of 2560 and 16u2 are broken out for external use4. 2 channel of sdramps that is compatible with SPI5. 6 A4982 of 1/16 step size, 1 for X/Y axis respectively, 2 for Z axis, 2 for extruder6. Every control signal of stepper motor has a test point7. The step size of stepper driver can be divided by firmware8. Reserved interface for LCD9. 5 channel of PWM for extruder control10. 3 power inputs source that is protected by resettable fuses: 12v 15a for hotbed; 12v 5a for extruder; 12v 5a for stepper motor.11. PCB is composed of 4 layer of 35um copper sheetCompared with the 1.1b version, Rambo 1.2G has the following updates:1. Increased ESD (Electro-Static discharge) Electrostatic Discharge in the USB circuit section2. The logical part of the circuit and MOSFET share the same power supply3. enhanced anti-interference ability of signals.Package included:1 x RepRap Rambo 1.2G 3D Printer Control Board