This is a drain funnel stack for draining resin back into bottles. It is sized to be printable on the Elegoo Mars printer. It uses 1/4" all-thread rods for the vertical supports and nuts to position pieces. The funnel is https://www.thingiverse.com/thing:2984042 modified to fit the Elegoo Mars build volume and with a drain slot in the outer wall of the base to allow easier cleaning. Parts have been oriented for ease of slicing/printing.