Buddy

This repository includes source code and firmware releases for the Original Prusa 3D printers based on the 32-bit ARM microcontrollers.

The currently supported model is:

• Original Prusa MINI

Getting Started

Requirements

• Python 3.6 or newer

Building (on all platforms, without an IDE)

Run python utils/build.py. The binaries are then going to be stored under ./build/products.

• Without any arguments, it will build a release version of the firmware for all supported printers and bootloader settings.
• To generate .bbf versions of the firmware, use: ./utils/build.py --generate-bbf.
• Use --build-type to select build configurations to be built (debug, release).
• Use --printer to select for which printers the firmware should be built.
• By default, it will build the firmware in "prerelease mode" set to beta. You can change the prerelease using --prerelease alpha, or use --final to build a final version of the firmware.
• Use --host-tools to include host tools in the build (bin2cc, png2font, ...)
• Find more options using the --help flag!

Examples:

Build the firmware for MINI in debug mode:

python utils/build.py --printer mini --build-type debug

Build final version for all printers and create signed .bbf versions:

python utils/build.py --final --generate-bbf --signing-key <path-to-private-key>

Build the firmware for MINI using a custom version of gcc-arm-none-eabi (available in $PATH) and use Make instead of Ninja (not recommended):

python utils/build.py --printer mini --toolchain cmake/AnyGccArmNoneEabi.cmake --generator 'Unix Makefiles'

Development with LSP-based IDEs (Visual Studio [Code], Vim, Sublime Text, etc.)

1. Run python utils/bootstrap.py to download required dependencies.

2. Create a build directory and enter it (mkdir build, cd build).

3. Invoke CMake directly with your configuration, for example:

   cmake .. -G Ninja \
            -DCMAKE_TOOLCHAIN_FILE=../cmake/GccArmNoneEabi.cmake \
            -DCMAKE_EXPORT_COMPILE_COMMANDS=YES \
            -DBOOTLOADER=YES \
            -DPRINTER=MINI \
            -DCMAKE_BUILD_TYPE=Debug

   See the header of ./CMakeLists.txt for more command-line options (most of them are one-to-one mapped with build.py's options).

4. And invoke ninja. It will generate a compile_commands.json file, that an LSP server can pick up and use to provide autocompletion to your editor.

This assumes you have sufficient version of cmake and ninja available in your PATH.

Development using STM32CubeIDE (all platforms)

Installation:

1. Install latest STM32CubeIDE (link)
2. Install cmake4eclipse extension (Help > Eclipse Marketplace... > search for cmake4eclipse and install it)

Generate and open the project:

1. Generate a project file by running: python utils/build.py --generate-cproject
2. Open the project in the IDE (File > Import Projects from File System... > Select the root directory of this repository > Finish)

💡Changes to the generated project are not tracked by git. The build is still driven by CMake; therefore, if you want to add a file or change some compiler settings, change it in CMakeLists.txt directly.

Flashing Custom Firmware

To install custom firmware, you have to break the appendix on the board. Learn how to in the following article https://help.prusa3d.com/article/zoiw36imrs-flashing-custom-firmware.

License

The firmware source code is licensed under the GNU General Public License v3.0 and the graphics and design are licensed under Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0).