Need help with sizing

Guys I’m having big problems with figuring out the sizing of what is printing on luban

Is there an easier way to know that dimensions of your 3-D object, And/or the size of your print before printing

You should design everything in metric units.
The units of snapmaker cura and most other slicers are also in metric units.

If you select your object the size should show up in the bottom right.
That is if you have the latest update: 3_11_1. It disappeared for a while.