To print use 3 walls, and 4 solid top and 4 solid bottom layers and 15-20% infill. Te part was printed with azure petg, and this part have a fox for creality sensor, the litle pin from the top keep the roll form the switch in good position. And is need only 4 skrew, 2 to fix the adapter to the metal piece and 2 to the fix the sensor.
The author hasn't provided the model origin yet.