RAMPS 1.4 is a modular 3D printer controller board designed to work with an Arduino Mega for RepRap, Cartesian and Prusa-style FDM 3D printers. BDTronics offers this RAMPS 1.4 motherboard for DIY 3D printer builders, repair projects and custom printer electronics requiring stepper motor control, heater outputs, fan control, thermistor inputs, LCD expansion and additional I2C/SPI interfaces.

BDTronics RAMPS 1.4 uses a modular architecture with five Pololu-compatible stepper driver sockets, allowing compatible driver modules to be installed, removed or replaced easily. The board provides dedicated MOSFET-controlled outputs for heaters and fans, three thermistor inputs, a heated bed output with an additional 11A fuse, and dual Z motor capability for suitable Prusa-style configurations.

Buy LCD Module: https://www.bdtronics.com/ramps-1-4-lcd-12864-control-panel-blue-screen.html

Features:

• RAMPS 1.4 3D printer controller board

• Designed as an Arduino Mega shield

• Suitable for RepRap and DIY FDM 3D printers

• Cartesian printer support

• Extruder control

• Supports up to 5 Pololu-style stepper driver modules

• Modular plug-in stepper driver architecture

• Three MOSFET outputs for heaters and fans

• Three thermistor circuits

• Heated bed control output

• Additional 11A fuse for heated bed protection

• Main 5A fuse for additional circuit protection

• PWM-controlled MOSFET outputs

• Dual Z motor connection for suitable Prusa Mendel configurations

• I2C expansion pins

• SPI expansion pins

• Servo-style connectors for endstops, motors and LEDs

• Gold-plated connectors

• Connector current rating: 3A

• Heater status LEDs

• Expandable architecture for additional accessories

• Replaceable stepper driver sockets

• Designed for easy servicing and component replacement

• Suitable for custom 3D printer electronics projects

Specifications:

• Model: RAMPS 1.4

• Product Type: 3D Printer Controller Board

• Architecture: Arduino Mega Shield

• Compatible Main Controller: Arduino Mega

• Application: RepRap / FDM / FFF 3D Printer

• Stepper Driver Sockets: 5

• Stepper Driver Type: Pololu-compatible plug-in modules

• Heater/Fan MOSFET Outputs: 3

• Thermistor Inputs: 3

• Heated Bed Output: Yes

• Heated Bed Fuse: 11A

• Additional Fuse Protection: 5A

• MOSFET Control: PWM

• Z Motor Outputs: Supports 2 Z motors

• I2C Interface: Available

• SPI Interface: Available

• Endstop Connections: Servo-style connectors

• Motor Connections: Servo-style connectors

• LED Connections: Servo-style connectors

• Connector Finish: Gold-plated

• Connector Rated Current: 3A

• Heater Status Indicator: LEDs

• Board Type: Modular controller shield

Arduino Mega Compatibility:

• RAMPS 1.4 is designed to be mounted directly onto a compatible Arduino Mega.

• The Arduino Mega provides the main microcontroller platform for the printer electronics.

• RAMPS adds motor drivers, heater control, thermistor connections, fan outputs and expansion interfaces.

• Suitable firmware and configuration are required to operate a complete 3D printer.

• The modular shield design leaves possibilities for additional Arduino expansion boards.

Stepper Motor Driver Support:

• Provides five sockets for Pololu-style stepper driver modules.

• Suitable for typical X, Y, Z, extruder and additional Z/extruder configurations.

• Driver modules can be removed for replacement or servicing.

• The modular driver architecture allows different compatible stepper driver modules to be used according to the printer configuration.

• Compatible driver selection and firmware configuration are required.

Dual Z Motor Support:

• Provides an option to connect two Z-axis motors.

• Useful for Prusa Mendel and other dual-Z printer configurations.

• Two Z motors can be used to drive separate sides of a large gantry where supported by the printer configuration.

• Correct motor wiring and firmware configuration are required.

Heater and Fan Control:

• Three MOSFET outputs are provided for controlling compatible heaters and fans.

• MOSFET outputs are connected to PWM-capable pins for flexible control.

• Suitable outputs can be used for hotend heating, heated bed control and cooling fans depending on the printer configuration.

• Onboard LEDs indicate when heater outputs are active.

• Power supply and wiring must be appropriately rated for the connected heaters and heated bed.

Thermistor Inputs:

• Three thermistor circuits are available.

• Suitable for monitoring hotend, heated bed and an additional temperature-controlled component.

• Thermistor type and temperature settings must be correctly configured in the printer firmware.

• Temperature feedback allows the controller to regulate compatible heating elements.

Heated Bed Protection:

• Heated bed output includes an additional 11A fuse.

• The board also incorporates 5A fuse protection for additional circuit and component protection.

• Fuse ratings should not be treated as a substitute for correctly sized external power wiring and power protection.

• High-current heated beds require a suitable power supply and properly rated wiring.

Expansion Interfaces:

• I2C pins are available for additional peripherals.

• SPI pins are available for future expansion.

• Additional compatible Arduino expansion boards can be used where the hardware and firmware support the required configuration.

• The RAMPS board is designed to remain at the top of the Arduino expansion stack.

Connectors:

• Servo-style connectors are used for several printer connections.

• Connector interfaces are provided for endstops, motors and LEDs.

• Gold-plated connectors provide compact connections.

• Connectors have a rated current of up to 3A according to the supplied specifications.

Applications:

• DIY 3D printer controller

• RepRap 3D printer

• Cartesian 3D printer

• Prusa Mendel 3D printer

• FDM 3D printer electronics

• Custom 3D printer

• Arduino Mega 3D printer

• 3D printer motherboard replacement

• 3D printer electronics repair

• Custom printer development

• 3D printer upgrade projects

• 3D printer prototyping

• Electronics experimentation

• Stepper motor control projects

How to Use:

• Install a compatible Arduino Mega as the main controller.

• Mount the RAMPS 1.4 board onto the Arduino Mega headers.

• Install compatible Pololu-style stepper driver modules.

• Connect X, Y and Z stepper motors to their corresponding outputs.

• Connect the extruder motor to the appropriate driver output.

• Connect a second Z motor when using a compatible dual-Z configuration.

• Connect hotend, heated bed and fan wiring to the appropriate outputs.

• Connect thermistors to the available temperature inputs.

• Connect endstop switches to the corresponding endstop connectors.

• Connect a compatible LCD or other supported expansion hardware if required.

• Configure the appropriate board, motor drivers, thermistors, steps/mm and other parameters in the selected firmware.

• Verify all wiring before applying power.

• Check stepper driver orientation before powering the controller.

• Adjust stepper driver current according to the selected driver and motor requirements.

Installation and Safety Notes:

• Always disconnect power before installing or removing stepper driver modules.

• Verify stepper driver orientation carefully before powering the board.

• Never connect or disconnect motors while the controller is powered.

• Use an appropriately rated power supply for motors, heaters and heated bed.

• Use properly sized wiring for high-current heated bed and heater connections.

• Do not exceed the rated current of board connectors.

• Verify thermistor wiring and firmware configuration before enabling heaters.

• Check fuse ratings and power requirements before connecting a heated bed.

• Incorrect wiring can damage the RAMPS board, Arduino Mega, stepper drivers or connected components.

• High-current heater and heated-bed circuits should be installed carefully to prevent overheating or electrical faults.

Package Includes:

• 1 × RAMPS 1.4 3D Printer Controller Board

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