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Guide to Using USB Flash Drive Printing

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

Feature Overview​

The USB flash drive printing feature allows users to store G-code files on a USB flash drive, enabling the device to directly read and execute print tasks. This feature is especially useful in the following scenarios:

  • Unstable or unavailable network connections
  • Rapid deployment of print tasks
  • 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 a capacity of 8GB or more
  • File System: Must be formatted as FAT32
  • Formatting Methods:
    • Windows: Right-click USB drive → Format → Select FAT32
    • macOS: Disk Utility → Erase → MS-DOS (FAT)

2. File Preparation and Storage​

  • Supported Format: Standard G-code file (.gcode extension)
  • File Placement: Copy the G-code file directly to the root directory or any folder on the USB 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 USB port of the device
  2. The system will automatically recognize and mount the USB flash drive
  3. In the web interface, the files on the USB drive 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 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 task

Important Notes​

Important Note
  • The USB flash drive can be safely removed during the printing process, as the system copies the file locally when printing starts
  • It is recommended to verify file integrity before printing to avoid interruptions
  • For large G-code files, loading times may be longer; please be patient

Frequently Asked Questions​

❓ USB Flash Drive Not Recognized​

Issue: The system shows no response after inserting the USB drive, and the USB drive content is not displayed in the file manager

Solutions:

  1. Check if the USB flash drive is formatted as FAT32
  2. Try switching to a different USB port
  3. Test the USB flash drive's compatibility on another device
  4. Restart the device and reinsert the USB flash drive

❓ File Read Failure​

Issue: 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 reslicing it
  3. Ensure file permissions are normal and there are no read/write restrictions
  4. Avoid using Chinese characters or special characters in file names

❓ USB Flash Drive Removed During Printing​

Issue: Worried about the impact on printing if the USB drive is accidentally removed

Solutions:

  • No need to worry: The system copies the entire file locally before starting the print
  • The print task will continue normally, unaffected by the USB drive's connection status
  • After printing is complete, you can reinsert the USB drive for the next task

❓ Slow Transfer Speed​

Issue: File loading times are excessively long, affecting printing efficiency

Optimization Suggestions:

  • Use a USB flash drive with a USB 2.0 interface (best compatibility)
  • Avoid using USB 3.0 devices (blue interface) as there may be compatibility issues
  • Regularly clean the USB drive to keep sufficient free space
  • Consider file size; for very large G-code files, consider optimizing slicing settings

❓ File Format Compatibility​

Supported Formats:

  • ✅ Standard G-code files (.gcode)

Unsupported Formats:

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

Best Practice Recommendations​

File Management​

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

Device Maintenance​

  • Safely eject the USB flash drive before physically removing it
  • Regularly check if the USB port is loose or has accumulated dust
  • Keep the system firmware updated to the latest version
  • Preview the first layer before each print to ensure the file is correct
  • Confirm that material supply is sufficient and the bed is leveled
  • For important print tasks, it is recommended to test a small portion locally first

Technical Support​

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

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