Upgrade Printing Speed and Quality: PAD 7 upgrade and pre installed Klipper firmware, using Klipper's input shaper and BTT ADXL345 module, can effectively improve printing speed while ensuring printing quality, printing speed can be increased by 2 to 5x compared to Marlin firmware; You can improve the printing quality and speed to new heights and achieve the best model quality possible Supports Open Source: Based on the DIY innovation needs of makers, PAD 7 allows users to freely change the PAD firmware system and other Klipper firmware, and can easily replace the PAD firmware system through SD card or USB. Meet the customized needs of users for Klipper Wide Application Range: If you use CoreXY 3D printers such as VORON 2.4 or VZ Bot, you can pair them with the PAD 7 + BTT Octopus series control board; If you use i3 3D printers such as Ender-3/BIQU B1 SE Plus, you can pair them with the PAD 7 + BTT SKR series control board; If you use Raspberry Pi Ecology, you can remove the