Make Sure it fits! The slicer that is!
It is important to remember that 3d printer slicers work in millimeters, specifically, the one we use here, the Chitubox slicer.
When you model in a 3d cad program, you need to make sure it is set up for the metric system. Also, adjusting the size and dimensions of the measurement details, such as centimeters, millimeters etc.
Blender, the program we use for modeling on this site, does not come set up standard in the metric environment. Check out the video below, and see how easy it is to change your Blender 3d settings to accommodate the use of millimeters for design work.