This OS is a configured version of Raspbian (debian OS) that focuses on 3D printing, CNC controllers, and CAD/CAM applications. It includes many tweaks to get the GPU acceleration on webGL, VLC and Flash video for example. Since rc2, we now use F2FS for /home to improve sdcard performance. It was load tested on the pi2, pi3, and Pi3B+. It is based on a stripped down MATE desktop, and is intended to be shared along with the documented hardware projects. Please use the GPG key posted on the home website to verify the system image integrity upon new releases and patches. This distro will include the newest OpenSCAD, Slic3R, FreeCAD, KiCAD, pcb2gcode, k40 laser cutter tools, and ESP32 Arduino SDK. The support forums will be available for feature requests, and machine specific assistance.