Ratio of dust settling to eddy turnover time only within the first core rotationally supported disc formed during the fiducial 1 M_⊙ pre-stellar core collapse. The three plots highlight the behaviour of different dust sizes. Also overplotted is a single particle trajectory as a black dashed line for three different sizes of dust particles starting at the same initial grid cell location. The gas velocity streamlines indicate the material falling onto the disc and the deviation of gas and dust flow from a standard radial inward motion.