If You chose to replace the BOM Keybak in Your Voron SW with the aliexpress special counterweight (https://github.com/kanawati975/Voron_Switchwire/tree/main/Key-Bak) and dont want to just tie it to a screw - here is the replacement for the original anchor.
Position of the string is the same as in the original design, there is no need to move the top bearing stack.
Print with standard Voron settings (ABS/ASA, 4 perimeters, 40% infill). If You'r printer overextrudes small top surfaces a touch of sanding might be needed.
You'll need 2 M3x12 SHCS and 2 M3 heatset inserts, wich You should have left over from the SW build already.
The author remixed this model.