This is a solid aluminum spacer to replace springs under build plate. This was designed to use with strain relief. This can be used with or without abl sensor. Once it is level it should not change unless you have a mechanical issue on the v slot wheels. I have tested two months with no change. These spacers are only 2 ounces, so added weight to the build plate is minimal. They are cnc machined from aircraft aluminum.
Precision machined spacers for CR-10 3D printer build plate. Fine craftsmanship. Shipped promptly. Packaged with care. Excellent Etsy seller.