Prusa i3 MK2.5/MK3 X Carriage Back Split Upgrade

**IMPORTANT: [Get the latest updates for this model here on PrusaPrinters](https://www.prusaprinters.org/prints/60870-prusa-i3-mk25s-mk3s-x-carriage-back-split-upgrade).
In 2021, all updates and uploads of new models were moved to PrusaPrinters, of course still free and under the same conditions... :)**

**New:** *Bottom part with open slot for wires! - can now be mounted without disconnecting wires from controller board.
It is a little weaker than the original part but a lot easier to assem