Skip to main content

Introduction

Mellow Fly-D8 is a high-performance 3D printer motherboard launched by the Fly3D mainboard R&D team of Guangzhou Melun Electronic Technology Co., Ltd., supporting up to 8 stepper motors.

Product Features​

  • The motherboard's limit switch interfaces are powered with 5V and have isolation protection; if the POWER supply is not connected, no power will be output.
  • It uses a 32-bit ARM Cortex-M7 series STM32H723 main control chip with a frequency of 550 MHz.
  • It supports CAN bus and RS232 connections, providing more stable data transmission with lower latency and more stable connections.
  • The motherboard has BOOT and RESET buttons reserved for users to enter DFU mode via USB to update firmware.
  • The power interface has reverse polarity protection to prevent damage to the board during DIY when the power lines are reversed.
  • It provides two USB 2.0 ports, expanding connection possibilities; one USB port can be switched to an RS232 port using a switch to adapt to various device connection needs.

Product Specifications

  • Main Control Chip: 32-bit ARM Cortex-M7 series STM32H723 with a frequency of 550 MHz
  • Firmware: Marlin 2.0 / Klipper
  • Drive Mode Support: TMC: UART / SPI
  • Eight Driver Support: A4988, LV8729, DRV8225, TMC2208/2209/5160, etc.
  • Display: Serial Touch Screen, mini12864 LCD, 12864 LCD, 2004 LCD, FLY 4.3/7.0 V1
  • Supports Automatic Bed Leveling Sensors: BLTouch, PL08N, etc., Klicky, Voron Tap, etc.
  • Input Voltage: 12V / 24V supported
  • Six Limit Switch Interfaces, enabling precise range limitation and position control
  • Two RGB Interfaces, offering colorful visual effects
  • Three Heating Tube Interfaces, providing independent control for extruder and heated bed
  • Four Thermistor Interfaces, capable of monitoring up to four temperature groups simultaneously for precise temperature control
  • USB Interface: Supports two USB 2.0 ports, one of which can be switched to RS232 using a switch to adapt to various device connection needs