drone reeds with adjustable internal volume

[pipemakermike]

Hi
I have now had a chance to make a prototype and test the result. I used a reversed design that I had tried much earlier in the efforts to fine a good reliable reed design but this time I used a solid machined version based on the design by Richard Evans. The results showed that although a small difference was measurable the effect of reducing the internal volume was minimal. reducing the volume by 6mm (changing the 6mm long screw for a 12mm long screw) raised the pitch by 20 cents which was the same as moving the sliding part 2.5mm.:-

[Francis Wood]

Interesting findings, Mike, and proof that investigation is always better than intuition.

There are many assertions made about the functioning of pipes and in particular, reeds, which are not consistent or backed up by evidence. So it's excellent to read about the progress of these continuing systematic investigations.

My guess put greater emphasis on the effect of internal volume and it's interesting to note that this is not such an important factor.

Francis

[pipemakermike]

Hi Francis

There are stil a few more things that I want to try. I want to try a reed with a significantly increased internal volume. I haven't quite worked out how to do it yet but I have a few ideas.

[Dave S]

Hi Mike,

Would it now be possible to 3d print drone bodies (and other stuff like keys, reeds, valves etc etc) using a 3d printing service or a hobby centre
I know Richard Heard mentioned something somewhere ages ago but in the meantime the range of "printable" materials has blossomed

Cheers

Dave ( ps did the photos help?)

[Perdix]

I know that this is an old thread, but just in case someone else chances on it....
There are facilities that are available online that can print 3D at good resolution (in other words, produce fine details) at relatively affordable prices.

You would struggle with reeds, but keys should present no problem.

BR,

Myles