SBR Cone fitted for Tennis ball

thingiverse

This thing was crafted using Tinkercad, and you can edit it online at https://www.tinkercad.com/things/3yfbnhfVHxR. For launching Soda (Coke) Bottles by compressed air and water, this print provides a tennis ball to add weight when the water is depleted after launch. The fins keep it flying straight as it soars through the air. A ring at the bottom holds one end of the rubber bands, while the other end is attached to the fins. These bands also provide some flexibility. The raised areas inside the cone are designed to match up with the indentations in the bottom of the bottle. A ring prints inside the cone.