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 directly via the device. This function is particularly useful in the following scenarios:

• Unstable or unavailable network connections
• Rapid deployment of print tasks
• Offline printing environments
• File transfers between multiple devices

Detailed Usage Steps

1. U Disk Preparation and Formatting

• Capacity Requirements: It is recommended to use a U disk with a capacity of 8GB or more
• File System: Must be formatted as FAT32
• Formatting Methods:
  • Windows: Right-click the U disk → Format → Choose FAT32
  • macOS: Disk Utility → Erase → MS-DOS (FAT)

2. File Preparation and Storage

• Supported Format: Standard G-code files (.gcode extension)
• File Placement: Copy G-code files directly to the root directory or any folder on the U disk
• File Naming: Use English names, avoiding 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. The U disk files will appear in the file manager on the Web interface

4. File Selection and Printing

1. Browse the U disk files via the device's Web interface
2. Click the target G-code file to preview it
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

• It is safe to remove the U disk during printing as the system copies the file locally before starting the print
• Confirm the file integrity before printing to avoid interruptions
• Large G-code files may take longer to load; please be patient

Frequently Asked Questions

❓ U Disk Not Recognized

Symptoms: No response after inserting the U disk, and its contents are not displayed 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's compatibility on other devices
4. Restart the device and reinsert the U disk

❓ File Reading Failure

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

Solutions:

1. Confirm that the file extension is .gcode
2. Check if the file is damaged and attempt to re-slice it
3. Ensure the file has no read/write restrictions
4. Avoid using Chinese or special characters in filenames

❓ U Disk Removed During Printing

Symptoms: Concern about printing being affected after accidentally removing the U disk

Solutions:

• No need to worry: The system has already copied the file locally before printing began
• The print task will continue normally, unaffected by the U disk's connection status
• You can reinsert the U disk for the next task after printing completes

❓ 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), which may have compatibility issues
• Regularly clean the U disk to maintain sufficient free space
• Consider optimizing slicing settings for large G-code files based on their size

❓ 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 U disk to better manage multiple print files
• Regularly back up important G-code files
• Clean up completed print files promptly after printing

Device Maintenance

• Safely eject the U disk before physically removing it
• Regularly check whether the USB ports are 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 that the filament is sufficient and the bed is leveled
• For critical print tasks, it is recommended to test a small section locally first

Technical Support

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

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

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