GL45 Screw Cap- 29mm Inlet Hole (with onshape file)
Wanted to post this remix, needed an inlet hole with a slightly smaller diameter to hold a rubber stopper in place but because I could only find STL files I had to remake the hole thing from scratch, which was easier then I thought actually, anyway I based it off of the original designs but thought I would include the onshape file here so others can edit the file how they see fit and make their own designs a little easier. I also uploaded pretty much every other common type of file as well that should allow people to use the file in whatever cad program they are using, I have not tested those files yet though, but they should work, let me know if they don't.
Link to onshape file (it's also public called "GL45 Screw Cap"): https://cad.onshape.com/documents/4535349d2c3626ba37324530/w/39243a9e9545258cf29b2ef0/e/28592f15cd650b8a7348319f?renderMode=0&uiState=666a8f934f8c5b01a61d4d1c