Dan Caliper

I designed this simple caliper.
I don't have a 3D printer, so I would like to go to FabLab to print this.
The only problem is that I don't know if this caliper will work or if it will be printed in a good way.
Can you tell me if this is a good project or if there is something to changed?
The caliper is in CM (centimeters) from 0 cm to 14 cm.
The number or the centimeters are written in Roman numbers.
Thank you!
ENJOY!