PET Bottle launcher

Zip Tie Launcher for Pet Bottles inspired by various online sources.

https://youtu.be/Egix7ZXbOf4

This type of launcher make clever use of zip-ties to retain the PET-bottle on the launcher while you pressurize it. The zip ties grab around the flange on top of the bottle, and a ring makes sure the zip-ties can not move out of the way. When the ring slides down, it leaves room for the zip-ties to deflect and release the grip of the bottle, witch then leaves the launcher if pressurized.

My first attempt in PLA a few years ago was flawed and leaked all over the place. I now decided to do the pressurized part much smaller, in one piece and change material to PETG, witch now seams to work fine. I kept the majority of the design and just adapted to the new smaller pressurized part, witch might explain why some parts are designed like this.

The LaunchPipe is responsible for retaining the bottle using the Zip-Ties, locating the Pet-AP_Connector witch adapts the pet bottle to a stan