Buy the MK4 - https://www.prusa3d.com/product/original-prusa-mk4-2/ Read more about it - https://blog.prusa3d.com/announcing-original-prusa-mk4_76585/ The state of open-source- https://blog.prusa3d.com/the-state-of-open-source-in-3d-printing-in-2023_76659/