MUST BE PRINTED IN ASA OR ABS!
I have tried PETG and it is simply not strong enough.
In order to mount this you need to use a M3 heatset insert (ex. from Ruthex), then it can be used in place of a normal nut.
The valve is held in place with headshrink tube, but a small zip tie would also work.
*Edit - Updated model, but the picture is still from the old version
The author marked this model as their own original creation.