This print is intended to help you load wires into the RJ45 easy plugs. Just put it in, one by one and slide it a little and you are good to go. Loader should fit int the plug and is supposed to stay inside.
Using 1 line model is suggested.
! You have to adjust extrusion width to max 0,4mm. The smaller the more accurate the print will be.
It is ment for EZ-RJ45 connector with internal width of 9.6mm. This model is 9.4mm wide.
The author hasn't provided the model origin yet.