USB Drive Printing

This tutorial applies only to FLY host systems.

Important Notes

• Requires manual installation
• FAST systems do not require this step
• This tutorial will replace the klipper/klippy/extras/virtual_sdcard.py file in Klipper.
• Enables automatic copying of print files from a USB drive to the system's /tmp directory after selecting a file from the USB drive.
• After copying is complete, the web interface command line will display File selected.
• This script will detect sdaX folders and will not execute if none are found (where X in sda represents A-Z and 0-9).
• Currently only tested on FLY host systems; other host systems have not been tested.

Usage Instructions

• Connect to the host system using an SSH client and execute the command below.

• Note: This command will restart the host system!

• This step enables USB drive printing functionality.

  sudo rm -rf /etc/udev/rules.d/fly_devices.rules && sudo wget https://cnb.cool/3dmellow/public/static-files/-/git/raw/main/klipper/fly_devices.rules -O /etc/udev/rules.d/fly_devices.rules > /dev/null 2>&1 && sudo chmod +x /etc/udev/rules.d/fly_devices.rules && sudo service udev restart && sudo reboot

USB Drive Printing Operation

Backup and Download File

• Note: This command will stop Klipper.

• This step enables the automatic copying of selected USB drive files to the system's /tmp directory.

  sudo systemctl stop klipper && mv ~/klipper/klippy/extras/virtual_sdcard.py ~/virtual_sdcard.py && curl -kfsSL https://cnb.cool/3dmellow/public/static-files/-/git/raw/main/klipper/fly_devices.rules -o ~/klipper/klippy/extras/virtual_sdcard.py && sudo systemctl restart klipper

Restore Original File

• Note: This command restores the original Klipper file.

  sudo systemctl stop klipper && mv ~/virtual_sdcard.py ~/klipper/klippy/extras/virtual_sdcard.py && sudo systemctl restart klipper