Just print it, let it cool down and try to take out the middle part.

• Print-Settings:
• 2 Perimeters and minimum 5% Infill → If you want more, go higher.

If you like you can try out my other difficulties of Tolerance Tests here:

https://makerworld.com/en/u/3276628277

I bet you can't get them all to work !!!

1. 0.05mm → Difficulty: Ultra Hard
2. 0.1mm → Difficulty: Very Hard
3. 0.15mm → Difficulty: Hard
4. 0.2mm → Difficulty: Normal
5. 0.25mm → Difficulty: Easy
6. 0.3mm → Difficulty: Very Easy