First of all thanks to Tripnutz for his design.
For all those who do not wish to wait for the "rubber bump-ons" (that Tripnutz mentions in his description) to be delivered, here the remix, which contains some simple "rubber" (well actually TPU) feet for the MY FAV PI case. They are 8 mm in diameter and should fit the holes in the bottom part.
Plate temp: 60C
Printing temp: 230C
You can print them all at the same time (as I did - who wants to wait 4 times for 8 mm things...) but they will turn out nicer if you do them one after the other.