How does one go about protecting their new home built metalworking CNC milling machines from damaging themselves with swarf and coolant.

Does it matter if this gets into the ball screws and ways as long as its cleaned and lubricated each day or should they be covered up somehow to avoid anything comming into contact with them?

Also, while the motor drives and interface are well out of the way what is the best method to protect the servo motors, encoders and limit switches from getting covered in coolant .... or are they generally sealed enough for this not to matter ?