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Fly-D8 Documentation Index

Quick Navigation​

1. Preparation​

Hardware Checklist:

  • Mainboard: Fly-D8-F407
  • Host:
    Host Compatibility Notice
    • Recommended Models: Fly-PI-V3, Raspberry Pi 4/5, and other standard hosts
    • Unsupported Models: Redmi phones, WiFi dongles & set-top boxes, various non-standard modified hosts
    • Important: Using non-standard hosts may cause system instability, functional abnormalities, or inability to operate normally
  • Data Cable: One Type-C data cable
  • Connection Method: Must use Type-C to connect to the host
  • Power Supply: 12V‑24V power adapter (ensure voltage is within range)
  • Computer: Windows PC (or other computer capable of using SSH tools)
Preparation Notes
  • It is recommended to use a reliable quality Type-C data cable; poor-quality cables may cause unstable connections.
  • The power adapter wattage must meet the printer's requirements; ≥300W is recommended.
  • Ensure the host has a Klipper-related system (e.g., MainsailOS) installed.

2. User Guide & Important Notes​

Core Principle: Most issues are caused by configuration, connection, or power supply inconsistencies. Below are important notes for the Fly-D8-F407:

3. Firmware Flashing & Device Identification​

1. Firmware Overview & Mode Selection​

2. Flashing USB or CAN Firmware​

Choose the corresponding firmware based on the connection method:

Notes for This Step
  • Device Identification: After flashing, be sure to record the Device ID/UUID, as it is required for Klipper configuration.
  • Fallback Plan: If flashing fails, try flashing the BL firmware first.

4. Hardware Connection & Klipper Configuration​

Includes:

  • Mainboard interface function descriptions
  • Wiring methods for motors, heaters, sensors, etc.
  • Klipper reference configuration files

Related Documents:

Connection Safety Tips
  • Ensure the power is completely disconnected before performing any wiring operations.
  • Double-check the power polarity; reversing it may damage the mainboard.
  • Refer to your printer frame diagram for motor wiring sequence.
  • Check thermocouple connections before heating the heated bed and hotend.

5. Advanced Features & Configuration (Optional)​

Optional Features:

  • Camera: Connect a camera via USB for monitoring.
  • Marlin Firmware: Use Marlin firmware as an alternative to Klipper.
  • External Toolboard: Supports multi-toolhead systems.

Related Documents:

Extended Feature Notes
  • It is recommended to configure and test extended features one by one to avoid changing too many parameters simultaneously.
  • Camera configuration requires an additional USB camera device.
  • Toolboard connection is suitable for multi-toolhead 3D printers.

6. Technical Documentation & Resources​

Includes:

  • Schematic downloads
  • PCB layout diagrams
  • 3D model files

Related Documents:

Usage Suggestions​

For Beginners:​

  1. Start with Preparation to ensure all hardware is compatible.
  2. Carefully read the Important Notes section to avoid common mistakes.
  3. Follow the sequence: Firmware Flashing → Hardware Connection → Basic Testing.
  4. If encountering issues, first check the Troubleshooting related documents.

For Experienced Users:​

  1. Go directly to the specific functional documentation you need.
  2. Refer to Technical Documentation for detailed technical parameters.
  3. Configure Advanced Features as needed to enhance printing performance.
  4. You may try Marlin Firmware or other extended features.
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