Note: this is an implementation of the Triitent Pneumatic Launcher.
|Adding Screw Thread to build an Adapter|
While looking at a soft drink bottle, it appears the threaded area already has a place for an o-ring, so all that is needed is a thread and an o-ring landing.
The results may provide a stealthy leak proof adapter, note this has not been tested yet. Details will follow.
|Original and as Modified|
Most documented builds use existing plumbing fittings as they are purchased, and there is no reason not. But for my build I decided to change the shape of the main fitting to be more pleasing to the eye.
|Parts As Purchased|
For my build, I modified the fittings as shown.
Not much was done to the Coupler
|As will be used|
The preliminary dry fit shows how it all should look when (almost) completed.
The Trigger, Third Bottle and Barrel to be Added
The Trigger method has not be solidified yet, most documented Launchers use a standard electric underground sprinkler valves, modified for direct Pneumatic action.
This should be a very light Launcher, and maybe used over the shoulder for best aiming. This will be fun to shoot and use. Tess (my Dog) retrieval will make it just that much more enjoyable.