The IR Sensor of Prusa Mini works in the opposite way to MK3S. I modified the IR Sensor to operate in the opposite direction based on MK3S+ Extruder.
If you are interested in the Zaribo extruder mod, check out the link below
https://zaribo.com/blog/zaribo-geared-extruder-mod-no-firmware-needed/
When using Direct Extruder, it is recommended to change the length of Loading / Unloading.
Enter the following G code into the start G code of the slicer or create a separate G code and insert it into the USB to use.
M603 L50.00 U80.00
(M500 is meaningless because it cannot be stored in EEPROM.)
If you use Zaribo Gear Extruder like me, you can make G code as below.
M92 E500
M603 L50.00 U80.00
The author remixed this model.