Hi everybody,

This was inspired by the following YouTube video by Stand up Maths (Matt Parker):

https://www.youtube.com/watch?v=ga9Qk38FaHM

Make sure that you use a axisymmetric infill, and that you clean up the edges and also the tips after printing.

I added small spheres between the numbers, because imperfect printing lead to slightly raised areas around the embossed numbers, that skew the results. The spheres should neutralize this.

Have fun!