this is the version of the MK4 bin that i remixed for the PrusaBox model 1 allowing for the feet to fit and extending the height of the walls to block debris from landing on the z motors.
it is not perfect, it is only rev 2 but if someone wants to download the cad model and make it better, go for it.
It is only the right side, you need to mirror it in your slicer to make the left one.
Known Problems:
The author remixed this model.
Added in the cutouts for the PrusaBox feet and rails.
Extended the rear walls to better block debris from landing on the z1 motors.