A model of a standard, easy-to-print SodaStream cap. I didn't use supports, but if you don't mind taking them off, print quality could be better with them. There are two ways to print this model. One is to print out the complete cap in one material, and the other is to print the outside cap in some hard material and the inner rubber seal with some flex filament. Cap with rubber piece seals better. The best way to fit the seal in is to just slightly get it in and screw the cap on the bottle. It should push the seal in. If it doesn't help, use a bit of force :)

If you have any questions or problems, please comment or message me. If you like this model, you can leave feedback :)