Disposal of coarse
fraction: While rotating the inlet backwards, the
spring-loaded gate for the fines closes as the cam profile disengages. Then,
the other cam profile engages the second spring-loaded gate for the coarse
fraction and opens it as the port aligns with the chute on the arm. Once in
this position, the vibrating motor is activated, and the coarse particles fall
into the chute. Again, once no more mass increase in the storage container is
registered, the operation is considered completed and the mechanism is now
ready for an optional cleaning step 5, or the next regolith cut (extraction).