Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:3892118.
Needed to raise the silicon bed mounts I purchased from Amazon to replace the springs. On my Ender 3, the strain relief mount caused the left corner to have more tension than the other corners. I used 3 of the 2mm spacers to level all of the corners. This provided the necessary relief on the back left corner and the bed is now easier to level. On the CR-10S S5, the silicon mounts were too short and needed to raise the bed up. I originally used the 5mm spacers for the glass bed but changed to the 8mm spacers when I switched to a magnetic build plate. Using mutiple metal washers resulted in a clicking and cracking noise on the heavier bed and just made this a better option for my use cases.
The spacers have a space to insert the siicon bed mounts that will better stabilize the mounts. The 2mm spacers can also be used with the Ender 3 bed springs to equalize the tension in the corners of the print bed.