Wanted to not have to take my bltouch off to take resonance measurements on my Sermoon D1 with Sonic Pad for Klipper.  Let me know if you have any trouble but mine seems to be working well but made a few adjustments based on that.

11/6/22, added a version 2 with some adjustments.  I noticed when you went all the way to the far right hand rear corner the adxl sensor side stucky out too far and collided right where the cable bundle is ran.  Moved it and shortened it which should fix that issue.

This is a remix of the below two designs.

sermoon d1 adxl 345 mount by PA3MA - Thingiverse

Sermoon D1 BL Touch Mount MrtsRemix by chusmelj93 - Thingiverse

If you need the CR Touch version its available here Sermoon D1 Sonic Pad accelerometer mount with BLTouch by Logan | Download free STL model | Printables.com