Please, please address all the issues with the vtkCubeAxesActor! This class simply isn’t cutting it if trying to make publication-quality plots. See:
- Label format broken and displays incorrect values
 - Fontsize control broken
 - Scaling issues
 - Padding issues
 - No way to set the number of labels/ticks
 
This has become issue enough that I’m thinking of creating an entirely new pure-Python implementation of an axes labeler: https://github.com/vtkiorg/vtki/issues/147