This design is purpose built to fit this faucet with a 52mm inner diameter on the part. There is plenty of room to resize the ring to ensure a snug fit if your faucet size differs. I would suggest making the inner diameter (I.D.) the exact diameter of the largest outer diameter (O.D.) measurement on your faucet.
This design could use some reinforcements. It was printed in Wood PLA. It is my first design/idea. Let me know what you think!