This mount is suited to fit a BigTreeTech adxl345 accelerometer to the Bondtech DDX extruder motor so you can use its capabilities.

The mount is secured directly to the 2 upmost bolts of the extruder motor (you will need 2 longer bolts so it can compensate the extra thickness of the mount, and then secure. 

Then, to fit the btt accelerometer you will just bolt it with 2 M3 screws directly to the PLA till it gets tight enough.