When you use an E3Dv6 with the Anycubic Kossel, the heat block is to big to fit the bedlevel sensor. With this mount, you can mount the sensor while using a bigger heat block.

You have to subtract around 12mm to the sensor z-offset in Marlin. (Mine was -16.44mm and now it is -28.36).

This design fits my E3Dv6 solution for the Anycubic Kossel: https://www.thingiverse.com/thing:3468553

Print this in ABS or some other plastic that can withstand higher temperatures. Mine is in ABS and works perfectly.