Sorry for the poor photos. This is a 27mm quick fill funnel. What makes it quick? Not just the size of the funnel but it provides a way to let the air escape while you pour liquid into the funnel. Because the walls are 1.6mm thick you could scale it down to 50% it's original size and still have a working funnel. Scaling it up shouldn't be a problem.
NOTE: PLA will warp when it gets too warm. Don't use a dishwasher or very hot water to clean it. 3D prints are not deemed food safe. I am not responsible for any health issues related to the use off this funnel for food preparation.
Gently push the raft off with your thumbs by applying pressure on it and pushing it away from the funnel. Put a sheet off sandpaper on a flat surface and drag the surface where the raft used to be over it to create a clean flat surface.
Designed in Autodesk Inventor Professional 2016.