Description: The modular design includes plug in stepper drivers and extruder control electronics on an compatible MEGA shield for easy service, part replacement, upgrade-ability and expansion A number of expansion boards can be added to the system as long as the main RAMPS board is kept to the top of the stack Version 1.4 uses surface mount capacitors and resistors to further cover edge issue cases The smart controller supplies power for your SD card. All actions like calibration, axes movements can be done by just using the rotary encoder on the smart controller Specification: (1) USB type B receptacle. (2) SD Card add on available. (3) Fits 5 Pololu stepper driver board. (4) LEDs indicate when heater outputs on. (5) Expandable to control other accessories. (6) Heated bed control with additional 11A fuse. (7) Option to connect 2 motors to Z for Prusa Mendel. (8) I2C and SPI pins left available for future expansion. (9) It has provisions for the cartesian robot and extruder. (10) All the Mosfets are hooked into PWM pins for versatility. (11) 3 mosfets for heater / fan outputs and 3 thermistor circuits. (12) Fused at 5A for additional safety and component protection. (13) Pololu boards are on pin header sockets so they can be replaced easily or removed for use in future designs. (14) Servo style connectors are used to connect to the endstops, motors, and LEDs. These connectors are gold plated, rated for 3A, very compact, and globally available. Size Chart: Size: Approx. 10.5 x 6cm/ 4.13'' x 2.36'' Package Includes: 1 Piece RAMPS 1.4 Controller Board
