For as something as cheap as a water bottle, I'd have zero worries.
A guy at the local hackerspace successfully printed a beefy motor mount with ABS. He also helped me design a tripod mount for holding my Nikon D600 vertically (lens pointing down); I have no concerns about it failing, even though the mount is going to be subject to CNC movements.
A guy at the local hackerspace successfully printed a beefy motor mount with ABS. He also helped me design a tripod mount for holding my Nikon D600 vertically (lens pointing down); I have no concerns about it failing, even though the mount is going to be subject to CNC movements.