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USB Flash Drive Printing Function Guide

This document details how to use a USB flash drive for printing operations in the FlyOS-Fast system and provides solutions for common issues.

Function Overview​

The USB flash drive printing function allows users to store G-code files on a USB flash drive and have the device read and execute the print job directly. This function is particularly suitable for the following scenarios:

  • Unstable or unavailable network connection
  • Rapid deployment of print jobs
  • Offline printing environments
  • File transfer between multiple devices

Detailed Usage Steps​

1. USB Flash Drive Preparation and Formatting​

  • Capacity Requirement: It is recommended to use a USB flash drive with 8GB or more capacity.
  • File System: Must be formatted to FAT32 format.
  • Formatting Method:
    • Windows: Right-click the USB drive → Format → Select FAT32.
    • macOS: Disk Utility → Erase → MS-DOS (FAT).

2. File Preparation and Storage​

  • Supported Formats: Standard G-code files (.gcode extension).
  • File Placement: Copy G-code files directly to the root directory or any folder on the USB flash drive.
  • File Naming: It is recommended to use English names and avoid special characters.

3. Connection and Recognition​

  1. Insert the prepared USB flash drive into the device's USB port.
  2. The system will automatically recognize and mount the USB flash drive.
  3. In the Web interface, USB flash drive files will be displayed in the file manager.

4. Selection and Printing​

  1. Browse the files on the USB flash drive through the device's Web interface.
  2. Click on the target G-code file to preview it.
  3. After confirming the print parameters, click "Start Print".
  4. The system will automatically load the file and begin the print job.

Precautions​

Important Note
  • The USB flash drive can be safely removed during printing; the system copies the file to local storage when printing starts.
  • It is recommended to verify file integrity before printing to avoid print interruptions.
  • For large G-code files, loading time may be slightly longer; please wait patiently.

Frequently Asked Questions (FAQ)​

❓ USB Flash Drive Not Recognized​

Problem Manifestation: No response from the system after inserting the USB flash drive; USB drive contents are not displayed in the file manager.

Solutions:

  1. Check if the USB flash drive format is FAT32.
  2. Try switching to a different USB port.
  3. Test the USB flash drive's compatibility with other devices.
  4. Restart the device and reinsert the USB flash drive.

❓ File Read Failure​

Problem Manifestation: The USB flash drive is recognized, but G-code files on it cannot be read.

Solutions:

  1. Confirm the file extension is .gcode.
  2. Check if the file is corrupted; try re-slicing.
  3. Ensure normal file permissions without read/write restrictions.
  4. Avoid using Chinese characters or special characters in file names.

❓ USB Flash Drive Removed During Printing​

Problem Manifestation: Concern about affecting the print job after accidentally removing the USB flash drive.

Solution:

  • No need to worry: The system has already copied the file completely to local storage when printing starts.
  • The print job will continue normally, unaffected by the USB flash drive's connection status.
  • After printing is complete, you can reinsert the USB flash drive for the next job.

❓ Slow Transfer Speed​

Problem Manifestation: File loading time is too long, affecting printing efficiency.

Optimization Suggestions:

  • Use a USB 2.0 interface flash drive (best compatibility).
  • Avoid using USB 3.0 devices (blue interface), as compatibility issues may exist.
  • Regularly clean the USB flash drive to maintain sufficient available space.
  • Consider file size; for overly large G-code files, consider optimizing slicer settings.

❓ File Format Compatibility​

Supported Formats:

  • ✅ Standard G-code files (.gcode)

Unsupported Formats:

  • ❌ 3D model files (.stl, .obj, etc.)
  • ❌ Slicer project files
  • ❌ Other binary files

Best Practice Recommendations​

File Management​

  • Create categorized folders on the USB flash drive for easy management of multiple print files.
  • Regularly back up important G-code files.
  • Clean up completed files promptly after printing.

Device Maintenance​

  • Safely eject the USB flash drive before physically removing it.
  • Regularly check USB ports for looseness or dust accumulation.
  • Keep the system firmware updated to the latest version.
  • Preview the first layer before each print to ensure the file is correct.
  • Confirm sufficient filament and that the bed is leveled.
  • For important print jobs, it is recommended to test a small portion locally first.

Technical Support​

If you encounter issues not covered in this document, please seek help through the following methods:

  1. Check the system logs for detailed error information.
  2. Contact technical support and provide a specific description of the problem.
  3. Visit the official forum to view related discussions and solutions.
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