As a member of 3d.hcc.nl , a Dutch hobby club of members who are involved in 3d printing, 3d scanning, cad software (fusion 360).
I am involved in technical support and new developments in the 3d field.
In the context of this I have built a 5d printer
This can be done by turning and tilting the print head, or by turning and tilting the bed.
Because I couldn't choose the best method, I decoder to build both in the 3d printer, which results in a 5d printer with 7 axes.

Further information can be found at:

My 5D printer configuration Marlin
https://github.com/DerAndere1/Marlin/...

Wiki DerAndere1
https://github.com/DerAndere1/Marlin/...

Test reports 9 Axis configuration
https://github.com/DerAndere1/Marlin/...