About this 3D model
Inspired by the citrus presses which can be screwqed on PET bottles, I designed a citrus press which fits the glass bottles which come with the Sodastream Crystal 2. I designed it around the GL36 thread of the glass bottles I have included in the package of a Sodastream Crytsal 2 in Germany. Should be printable without supports. Just place it bottom down on your print bed.