On top of all these improvements over other RepRap electronic boards, the RAMBo also includes a digital potentiometer which can be used to calibrate your stepper motor's current. Plenty of headers are available for expansion, allowing you to connect an SD card reader, Smart LCD displays, I2C device, extra motors, etc. It also has connectors for up to 4 thermistors and 6 endstops. It supports 6 motors with 5 integrated stepper drivers and digital potentiometer, one connector each for the X axis, Y axis, first and second extruders and two duplicated connectors for the Z axis. The RAMBo supports an input power voltage of 12V or 24V, and it has 6 mosfets for controlling 2 heaters, one heat-bed and up to 3 fans. The design of the RAMBo also ensures that the stepper drivers will never fail and fry as was often the case with the RAMPS. The design of the RAMBo also allows it to act as a heat dissipater for the stepper motor drivers, which means that there is no need to install a heatsink on the stepper driver chips like many people did for the RAMPS. It also has replaceable fuses that protect the board from over-current and allows you to replace them without any soldering required. RAMBo has three separate connectors for power and it allows you to power the motors, mosfets and heat-bed separately. These connectors are keys, will insert easily and will clip into place. ![]() ![]() The RAMBo adds many improvements over the RAMPS by being a much more stable and robust controller, it also adds new easy to use connectors for motors, endstops, thermistors, heaters and power connectors. It is the successor of the popular RAMPS (RepRap Arduino-Mega Pololu Shield) shield used to control most RepRap 3D printers. Printers is an all-in-one electronics board for all your 3D printing needs. The RAMBo (RepRap Arduino-Mega Board) Controller Board for 3D
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