Soda Bottle Pump Cap

thingiverse

Revamp your flat soda experience with this innovative device! This prototype aims to increase pressure within a 2-liter soda bottle, preventing CO2 loss and maintaining effervescence. It can also function as a pressurization/depressurization chamber in scientific applications. To create it, you'll need a 3D printer, a soda bottle cap, a 3/4" drill, a smaller drill between 1/4" and 1/8", and superglue. Follow these steps: 1. Carefully drill the center of a soda bottle cap using a 3/4" drill, ensuring not to damage the outer rim's seal plate. 2. Drill a smaller hole in the center of the (Bottle_Cap_Chamber_with_out_hole.stl) model. 3. Cut a circular piece of balloon to fit over the new hole, gluing it on the outside surface only, ensuring a one-way valve for airflow. 4. Attach this balloon piece to the soda bottle cap using superglue, making sure it's air-tight. 5. Place (bottle_cappiston.stl) piston into your modified bottle cap and operate as follows: push down while covering the small hole, then release to allow air to enter the chamber. This single piston piece can be reused for multiple bottles. Enjoy a world with more bubbles!