The Fly-RRF-36 has an onboard accelerometer (LIS3DH) which is compatible with RRF.
Below is the orientation of accelerometer fitted to the Fly-RRF-36.
Important: The changes shown below that are to be made to config.g assume that the toolboard uses the default CAN address of 124. If you have changed the default CAN address, make sure you change the 124 to the correct address.
See M955 for how to setup and configure the accelerometer, including its orientation in relation to the printer XYZ axis.