Description: RAMPS 1. 4 (Reprap Arduino Mega Pololu Shield) is a motherboard designed to support the controls and drivers for a RepRap printer. Combined with an Arduino Mega 2560 or 1280 and four drivers Pololu stepper motors (3 of them are used for the X, Y and Z and the other is used for the extruder). The other passive components (capacitors, resistors, LEDs, etc.) are already mounted on the board.
In RAMPS 1.4, the resistors and capacitors are now surface mount to fit more passive components. This does add another set of steps to assembly, but we stuck with larger sizes to make it fairly painless.
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Note: This board requieres external motor drivers. Please consider A4988