This one didn’t print as cleanly I wanted. But it still works. 3 Part print in place. there are two small hinges that don’t seem to print loose enough. The center ring clip around the neck of the eye drop bottle. The sides are grips that have each have a lug that presses into the side of the bottle. the length of the grip create leverage so it take very little strength to get a drop.
here is the whole catalog. Here I found this file.
CreATe Together 3D Print Catalog