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Introduction

Fly-D7 is a high-performance 3D printer mainboard developed by the Fly3D motherboard R&D team of Guangzhou Meilun Electronic Technology Co., Ltd., supporting up to 7 stepper motor channels.

1. Product Features​

  • Uses a 32-bit ARM Cortex-M0+ series STM32F072RBT6 main control chip with a main frequency of 48MHz
  • Supports CAN bus connection, providing more stable data transmission, lower latency, and more stable connections
  • Drive support: A4988, LV8729, DRV8225, TMC2208/2209/5160, etc.
  • Board-mounted DIAG function pins, enabling infinite endstop homing support with simple plug-and-play jumper caps

2. Product Specifications​

  • MCU: STM32F072RBT6
  • Firmware: Klipper/Marlin
  • Supports 12-24V DC power supply, providing more stable power supply without the need for a voltage reduction module
  • Drive operation mode support: SPI, UART, STEP/DIR
  • Supported drives: Supports external TMC5160Pro, TMC5160, TMC2209, TMC2225, TMC2226, TMC2208, TMC2130, A4988, etc.
  • Expansion interfaces: BLTouch (Servos, Probe), UART X1
  • Fans: Two-wire controllable fans X2, Parallel fans X2, Always-on fans X2
  • Temperature sensors: 3 channels NTC 100K
  • Heating interfaces: 3 channels supporting 10A control
  • Supported machine structures: Cartesian, Delta, Kossel, Ultimaker, CoreXY