Kossel effector autoleveling with optical switch.

I had ordered this thing from AliExpress,
It's a very nice strong Nylon Extruded Effector with autoleveling, however, there were no instructions on how to make this autoleveling.

The holes on the effector where the with of that of an optical endwitch
So i designed a little part that let me use an Optical switch, and a 2mm allen key, or (as i did) an 2mm solid kopper wire that was bend in a 90 degree angle.

I turned it upside down to be able to use a spring from a ballpen to push the no