This is a two part print, to aid in removing set bits of resin from the vat, when returning the unused resin to the bottle. Use of a normal shop bought large funnel, and helps with speed of filtering the resin. 

Print settings. 

FUNNEL TOP (sieve top)

 0.2mm/0.25mm layer height, 0 bottom layers, 0 top players, 6 perimeters, 15% infill on top no support required, in pla or petg

FUNNEL BOTTOM (sieve bottom)

0.2mm/0.25mm layer height, 0 bottom layers, 0 top players, 6 perimeters, 25% infill on top no support required, in pla or petg

Parts should fit together snugly, and come apart for cleaning.

Use of a normal resin filter at the base of the funnel ensures clean resin results, into the bottle.

Happy resin printing.