Automatic Speed for Marlin 3D Print

This is a Marlin automatic speed control plug-in. It uses arduino nano and MPU9250 (gyroscope) production, installed in the top of the printer.

1. Without vibration, the printing speed will be faster and faster;
2. When the vibration occurs, the print speed will be automatically reduced;

Through this simple principle, to achieve dynamic adjustment speed. Enhance the printing effect.

Originally inspired by https://news.engin.umich.edu/2017/10/3d-printing-gets-a-turbo-boost-from-u-m-tech