After “upgrading” the KP3S PRO printer with Y axis with linear rails, I found that the previous screw was short and the screw delivered did not work with the spring.
This print will enable the original screw to function.
There is a 0,2 mm thick face for bridging in the middle of the Spring loader. Simply push the leveling screw through after print.
I have no idea what actual tolerances are on the Kingroon screw and spring guide. The dimensions here fit mine with loose fit on spring loader and light press fit on the screw cap.
The author hasn't provided the model origin yet.