Computer hard drive mount for 19" rack system (4er)

DIY Computer hard drive mount (3,5" hard drives) for 19inch rack system. Usage ex: self-built server.
to use in combination with Flyht Pro Rack Tray 19" 1U short Mount: https://www.thomann.de/de/flyht_pro_rack_tray_19_1u_short_mount.htm
(no product placement, only because the mounting hole is design for this model:)
Driver mounting screw: https://www.amazon.de/dp/B09HBKC432?ref=ppx_yo2ov_dt_b_fed_asin_title
Screws for mounting the 3D prints to the tray are normal M3 screws with shims.

in the file there're 2 versions:
1. shorter mount, more tight, mounting the hard drive with 2 screws (example in picture)
2. higher mount, more space in between, more loose, vibration absorption possible. (rendered version)