Print as is on the plates. The right side is 99% scall to fit into each other nicely.
Holds several rolls of toilet paper.
If you resize it smaller, it will only fit very small rolls of toilet paper. It is currently sized to fit most any double ply or mega rolls.
I would suggest leaving the infill at the set percentage or higher, do not reduce the infill or you run the risk of making the mounting points weaker.