Roca Dama WC Toilet Seat Bar Hinge Middle Section and pad

After
understanding that my toilet problem was an International problem and
thanks user jojorahu
who designed these parts
https://www.thingiverse.com/thing:1265780,
I made a try with FreeCad to design the middle part which was broken.
For
solving the problem permanently, replace the seat front pads with the
autocentering ones I have designed, to stop seat from moving off the
center and stressing the hinge bar.
Scale
analog to your filament because the shrinkage from filament to
fil