The Pop-up Nose Flute : Major Improvement on the WINF!

The Wallet Instant Nose Flute (WINF) encountered a nice critical success, but some readers asked me OK, but why don't you glue the 2 parts together? Well, for sure I tried sereval ways to glue the small piece to the big one, for more comfort in the handling. The problem was kind of structural: when glued, the air exit bulged too much to create a very thin air flow. The two only obvious ways to act upon this problem would have been 1) either to make a much less broad air exit (bad solution: the flute wouldn't whistle anymore) or 2) not to bulge the nose flute itself so much (bad solution too: it has to be bent a lot in order to provide hermeticity)



But... I found a solution: make a double air exit, in order to flatten its two openings, and provide the required very thin air flow.

For that, I added a little flap on the small piece, folded it (the plastic quality has to stand with repeated foldings). This little flap is glued above the mouth hole: it keeps the airway cover at the right place and also saves the "flatability" of the nose flute.



For the rest, nothing hs changed, but it is easier now to show how this pop-up nose flute (2.5D!) works:



Here is the new template:



And the video!:



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