This is a clock.
Here numbers become directry clock face, so font design of the numbers determines design of this clock.
Also the face is rounded as part of sphere.
Use jig to place numbers to correct position
I am using DaVinci 1.0 3D printer by XYZ printing.
Layer pitch is 0.3mm.
Normal speed and normal shell thickness.
No raft. No support.
With stick paste(Tombow, Shiwanashi PIT).
480 minutes to print. 60 minutes for shaping, constructing and sanding.
40m for ABS.
1 clock movement module (typically 3-4$)
1 AA battery