# Introduction QIDI's 3D printers are based on open-source software such as Klipper and Moonraker, with some modifications to meet our specific requirements. We extend our gratitude to the developers and maintainers of these open-source projects and encourage users to explore or support these great projects. - **Klipper** - **Moonraker** **Note:** Please avoid using Kiauh or git to manually update Klipper, Moonraker, as this may cause the printer to malfunction. ## Report Issues and Make Suggestions You can contact [After-Sales Service](https://qidi3d.com/pages/warranty-policy-after-sales-support) to report issues and make suggestions. Alternatively, you can post an issue in this repository, our developers will reply to you directly.