Ryobi P738 Inflator Nozzle Attachment System w. Storage / Trigger Guard

This design is a variation on my more 3D-printing-friendly custom nozzle attachment method for the Ryobi P738 inflator (FDM nozzles replicating Ryobi's design tend to split along layer lines over time). It adds storage for a spare nozzle that doubles as a partial trigger guard.

It is compatible with all the nozzles from the original system.

STEP versions are included for all models.

I had good luck printing this in PLA with two 0.9 mm walls from a 0.6 mm nozzle. No supports are required.
 

Assembly directions:

1) Place the locking ring over the inflator's output withe the ring's threads facing forward. You'll have to align the pegs on the inflator with the slots in the ring.


 

2) Place the nozzle adapter on the front of the inflator, placing it's notches over the pegs, and aligning it as shown (i.e. nozzle storage socket faces down).



3) Screw the locking ring onto the nozzle adapter until it's tight. A little back and forth play won't matter (when a nozzle is screwed in it'll lock it up), but if desired, you can sand the top of the locking ring a little to tighten up the fit.

4) Screw your spare nozzle into the storage socket on the bottom until it bottoms out. If using nozzles with fins, you may want to sand or file their bases to adjust the orientation of the fins in the locked-up position to clear the trigger area. Extra material is provided on those finned nozzles for this purpose.



5) Install your primary nozzle on the tool. When tightened, it will bear on the front of in inflator's output to give a seal. This will also take any play out of the nozzle adapter.