Another use for snow

Irish Flute
1

One way to make sure that the rings on a Delrin flute are firmly attached is to take advantage of the thermal expansion properties of Delrin. I machine the ring seating about a tenth of a millimeter over size for the ring, and then shrink the Delrin by cooling it. Tap the ring on, then the Delrin expands when it warms up, gripping the ring tightly from the inside. I usually do the cooling in the kitchen freezer, but since we had snow on the ground today, here is another way to do it.

2

Is that cold enough, Dave? Aren’t freezers set for something like -18 °C?

3

A good point, Peter. One of the rings was a little reluctant to go on, so I ended up chilling it down some more in the freezer.

4

Dave, your avatar… it’s a bit of a much larger picture that i know i’ve seen before… what is it?

thank you,

be well,

jim

5

That would be one of the iterations of Hogarth’s The Enraged Musician.

http://en.wikipedia.org/wiki/File:Enraged_musician.jpg

IIRC the one in the link above isn’t an original, but one of the many knock-offs that Hogarth’s work saw in its day.

6

Great idea, the engineer is still alive within the flute maker… :really:
Flute keys in the oven, delrin flute pop cycles in the freezer!

7

seems like only a couple o’years ago

Terry mentioned it here and ya need to get to the next page

8

Yeah, I’m trying to keep it brief this time around. :laughing:

9

you? brief? well!

ah, good luck then :smiley:

10

Is that stuff in the bucket snow? We’ve heard tales about the stuff, but right now in Vermont, only the machines are keeping the snowboarders happy…

11

I’ve checked with my suppliers, too, Dave. Definitely not available around here!

Terry

12

Terry.. I’ll make you a deal. One of your flutes and i’ll send you a box of that stuff! It is falling from the sky again and I am sick of keeping the porch and veranda free of the stuff..

Ketil, Norway

13

Heh heh, there’s a story, and I have no idea if there is any truth in it, that during the Ballarat gold rush, they brought ice from California for the miners’ drinks.

At around the same time, Siccama, Ward, Boehm, Pratten, Clinton and Carte were busily bringing out new flute models…

(Ballarat is about 70 miles northwest of Melbourne. I grew up there and did a bit of gold panning myself, with some success.)

Terry

14

Terry, if you send me the gold, I will find a way to send you the snow!