Hi Malcolm,
I make my drills from silver steel. There is a cad program
called allycad which offers a free for home use program capable of reading
Mike Nelsons drawings. Its a pity that a few details are missing from Mikes
otherwise brilliant site. He mentions a modifed slot drill for cutting the
key seats but the description isnt there. I dont suppose anyone knows what
that might be? The C and B book shows artificial brass and cane(plastic now
I think) How good are those sizes for modern pipes? Most of my problems now
are key associated ie slot cutting, lining and key making. I believe that
CZ108 brass is best for keymaking as it has good cold working properties, I
got some 2mm sheet today. I am correct in thinking this before I waste time
cutting it into strips etc? I think thats quite enough for now.
Thank you
Bob
--------------------------------------------------
From: <[email protected]>
Sent: Saturday, January 30, 2010 10:18 PM
To: <[email protected]>
Subject: [NSP] Re: Pipemaking query
Dear Bob; I too am an ammateur maker although if you manage to flog a set
which I have in the past then I suppose it makes me a semi pro maker. You
seem to have been more successful that I have in gaining a response to a
request for information as past blogs indicate from the sublime to the
ridiculous in reply. Tone holes seem to be something which irritate every
maker when asked to supply their own tweaked measurements after many years
of manufacture. The low notes are the most difficult to obtain ie below
lowest D where the harmonics are spread farther leaving a large variable
between each note. A tweak can result in a shift of 12mm over 25c and
leave you with a soddin' great hole to fill and all that after 200 houres
work. After my request and you can look at the archive, I recieved 3
replies out of a what did you say membership and one of them was to ask
how to measure the bore and he never replied either bless him. If you are
realy serious about this subject then sharing of information is vital and
all of it not just the obvious. Nelson's site reqired Auto CAD to read it
Frances bailed me out on that one and even then after building a chanter
(long) I found at least 20% of the measyurements out by as much as 12mm.
Been there done that too and now into year 7. I make my own drills from a
2.5mm welding rod. Malcolm-- Bob Salter wrote :
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