My wife's coffee cup is too large for my cars cup holder. This is an adapter so she won't spill here coffee

Creality

Ender 3 Pro

No

No

20%

I used ABS because it will be used in a car and PLA can get soft in the hot summers here

I bumped up line thickness to 2.0 for extra strength

This is designed to not need supports. Prints vertically without issue

With freecad the design can be customized for vehicle and coffee cup