This is a custom lid for a coke bottle (tested with a 2 litre bottle). It has 2 siphon tubes at the top for your use.
I designed this thing as part of a drinks dispenser. One side of the siphon tube attaches to an air line. The other side has a tube that goes to the bottom of the bottle. Air goes in, liquid comes out (hopefully)
As im using a pressurised system to get the liquids out of the bottles, i needed this to be as air tight as possible. I've found the best settings as follows.
Shells: 2 (or 3 might be better)
Layer Height: 0.1mm (i've printed successfully at 0.2mm also)
Movement Speed: 80mm/s
Once i have the completed part i found using some plumbers tape around the thread of the bottle, helps it to become air tight. I'm pressurising bottles at around 5-7psi and this seems to be working fine.