Bottle rocket launch pad and nozzle

WARNING!! You use this at your own risk! Structural integrity of 3D printed parts is hard to predict so use this with caution and wear protective gear (especially safety glasses) to protect yourself from debris should any of the parts fail.

Update 30/06/2017 Added a thread-less version of the nozzle in STEP format so you can make your own threads if you have a different bottle type. The cavity is 30mm wide and 13mm deep at the outer edges (there is a 2mm chamfer in the bottom so at the nozze it is 15mm deep.

Update 28/6/2017 Forgot to add the base structure (called housing)! :D sorry, now it's added!

This is a really improvised experiment to create a fun water rocket launch pad and nozzle. I wanted to use the compressor or a bike wheel pump without gardena connectors.

The release mechanism uses a rotating "locking ring" where you can connect a line for remote triggering. The system only works with the attached nozzle.

To build the air pressure connector, cut of the