MakerBot MightyBoard RevH 5 BotSteps attaché pour Replicator 2X

When a MakerBot Replicator 2X starts acting up mid-print, the culprit is often the main controller board. The MakerBot MightyBoard RevH with 5 BotSteps attached is the exact replacement part to get your dual-extruder 3D printer back to reliable operation. This genuine board is engineered specifically for the Replicator 2X, ensuring proper fit, firmware compatibility, and consistent performance in demanding print environments, from professional workshops to educational labs.

Key specifications

• Microcontroller: ATmega2560 running at 16 MHz
• Stepper motor drivers: 5 integrated BotSteps (X, Y, Z, Extruder 0, Extruder 1)
• Input voltage: 24V DC
• Heater outputs: 3 (2 extruders, 1 heated build platform)
• Thermistor inputs: 3 (2 extruders, 1 heated build platform)
• Motor outputs: 5 (X, Y, Z, Extruder 0, Extruder 1)
• Endstop inputs: 3 (X-min, Y-min, Z-min)
• Connectivity: USB-B port, SD card slot
• Firmware compatibility: MakerBot Firmware, Sailfish Firmware
• Board revision: RevH
• Flash memory: 256 KB, SRAM: 8 KB, EEPROM: 4 KB
• Fan outputs: Multiple (part cooling, hotend cooling)
• Power regulation: Onboard 5V and 3.3V regulators
• MOSFETs: Integrated high-power MOSFETs for heaters

Why choose it

This board is not a generic clone—it is the original MakerBot MightyBoard RevH, built to the exact specifications of the Replicator 2X. With all five BotStep stepper drivers pre-attached, installation is straightforward: remove the old board, mount this one, and reconnect the cables. The robust power regulation and high-power MOSFETs ensure stable heating and motion control, reducing the risk of print failures caused by electrical issues.

Ideal use cases

• Repairing a MakerBot Replicator 2X with a faulty or damaged mainboard
• Upgrading an older board revision to RevH for improved reliability
• Keeping a spare board on hand for rapid maintenance in print farms or educational settings
• Restoring dual-extruder functionality after a board failure

Good to know

The MightyBoard RevH is designed specifically for the MakerBot Replicator 2X and may not be compatible with other printer models. Always verify your printer model before ordering. Installation requires basic technical skills, including disconnecting and reconnecting wiring harnesses. No soldering is required if the BotSteps are already attached, as in this version. Firmware may need to be re-flashed after installation, depending on your setup.