Tupperware Eco 500ml 16oz cap for bottle

thingiverse

My son brought home some Tupperware Eco bottles for school, but they came with only a drinking cap that isn't suitable for water with carbonation because the pressure opens the cap and the liquid spills out of the bottle. So I decided to create a custom cap for the Tupperware Eco. I designed it specifically for the German version (500ml), although the bottle has a stamp indicating 16oz, I believe this design can also work in the US. Don't use PLA! It's too inflexible and becomes soft when exposed to dishwashers. Always choose materials that meet the Regulation on Plastic Food Contact Materials. I recommend using PETG from Extrudr. The design is optimized for FFF printing and provides a snug fit, making it easy to screw on securely.