U Disk Printing Function User Guide

This document details how to use the U disk printing function in the FlyOS-Fast system and provides solutions for common issues.

Function Overview

The U disk printing function allows users to store G-code files on a U disk and execute print tasks by directly reading the files from the device. This function is particularly suitable for 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. U Disk Preparation and Formatting

• Capacity Requirement: An 8GB or larger capacity U disk is recommended
• File System: Must be formatted as FAT32
• Formatting Methods:
  • Windows: Right-click the U disk → Format → Select FAT32
  • macOS: Disk Utility → Erase → MS-DOS (FAT)

2. File Preparation and Storage

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

3. Connection and Recognition

1. Insert the prepared U disk into the device's USB port
2. The system will automatically recognize and mount the U disk
3. In the web interface, U disk files will appear in the file manager

4. File Selection and Printing

1. Browse the U disk files through the device's web interface
2. Click on the target G-code file for preview
3. Click "Start Printing" after confirming the print parameters
4. The system will automatically load the file and begin the print task

Important Notes

Important Reminder

• The U disk can be safely removed during printing, as the system copies the file locally before starting the print
• It is recommended to verify the file integrity before printing to avoid interruptions
• For large G-code files, loading time may be longer; please wait patiently

Frequently Asked Questions

❓ U Disk Not Recognized

Symptoms: No reaction after inserting the U disk, and the contents do not appear in the file manager

Solutions:

1. Check if the U disk is formatted as FAT32
2. Try using a different USB port
3. Test the U disk on other devices for compatibility
4. Restart the device and reinsert the U disk

❓ File Reading Failure

Symptoms: The U disk is recognized, but the G-code files cannot be read

Solutions:

1. Confirm that the file extension is .gcode
2. Check if the file is corrupted and try re-slicing
3. Ensure the file has no read or write restrictions
4. Avoid using Chinese or special characters in the file name

❓ U Disk Accidentally Removed During Printing

Symptoms: Concern about the impact of accidentally removing the U disk during printing

Solutions:

• No need to worry: The system has already copied the file locally before starting the print
• The print task will continue normally, unaffected by the U disk connection status
• The U disk can be reinserted after printing for the next task

❓ Slow Transfer Speed

Symptoms: Long file loading times affect printing efficiency

Optimization Suggestions:

• Use a U disk with a USB 2.0 interface (best compatibility)
• Avoid using USB 3.0 devices (blue interface), as they may have compatibility issues
• Regularly clean up the U disk to maintain sufficient free space
• Consider optimizing slicing settings if the G-code file is too large

❓ 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 Practices

File Management

• Create categorized folders on the U disk to manage multiple print files
• Regularly back up important G-code files
• Clean up completed files promptly after printing

Device Maintenance

• Safely eject the U disk before physically removing it
• Regularly check whether the USB port is loose or dusty
• Keep the system firmware updated to the latest version

Print Preparation

• Preview the first layer before each print to ensure the file is correct
• Confirm sufficient filament and completed bed leveling
• 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, please get help through the following methods:

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

---