I was eager tp print the original voronoi style piggy bank by makerbot.
Unfortunately, I couldn't get it to print, because of the breaking center uprights.
Adding a z-hop prevented the printhead from breaking the uprights, but also lead to a poor overall quality.
Therefore, I've modded the original uprights in Tinkercad. Now they are stronger and print like a charm.
Will come out nicer, if you don't rush on this - I've printed at 50mm/s infill and 30mm/s walls.