I am new to 3D printing and design.
Decided to try Tinkercad and my first design is based on their basic tutorials.
I just eyeballed the location of the numbers so it might not be perfect.

Ender 3

Yes

No

0.1

100

I used a raft for the sample print but it might not be necessary.

The top and bottom required some sanding.
I also painted the numbers to help with reading them.