This magnetic mount will allow you to measure any axis from any point without a printer specific mounting solution. This is designed specifically for the KUSBA adxl345 accelerometer.
You will need to pause your print before the hollow cavity is closed so you can insert the magnets. For me, this was layer 55, but may change depending on your slicer settings.
You will need:
Remix of Sw3d.prints's Kusba magnet mount
The author remixed this model.
The only change was to resize the hollow cavity to better accommodate magnets I could easily find at the big box hardware store. 3x of the 12x3mm neodymium disc magnets fit perfectly.