A remix of mgrupe82's Adafruit ADXL345 90 Mount for Micro-Swiss NG, with a solder cutout and widened slots for screws to fit more board designs using the ADXL345 accelerometer besides the larger Adafruit model.
Designed to be a permanent mount, so you can leave the accelerometer in place.
You will need to replace the stock fan screws with >20mm M3's, and the slots are sized for M3 screws as well. Printed well in PETG, and held firm during my resonance calibration testing!
The author hasn't provided the model origin yet.