| Subject: | Re: [RESOGUIT-L] questions | | Date: | Friday, January 6, 2006 01:45:19 (-0600) | | From: | kbrown <kbrown @...........edu>
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Quoting Lynn Oliver <chief06@verizon.net>:
"Spiders appear to be used without polishing, other than the bottoms of the
feet where they contact the cone. Does polishing the entire spider change the
sound in any way?"
=> Don't know. I once filed down a spider as much as I thought I could get away
with, trying to achieve maximum mass reduction without sacrificing strength.
The results were terrible, but I also changed out the bridge inserts and the
cone at the same time, so it was not a controlled experiment, and I don't know
which variables made it sound terrible.
"Why don't coverplates have more holes (more open area)?"
=> Good question. I think more open area would be a good thing, and I've thought
about modifying one to see what would happen. I think coverplates need more open
area. I bet Gary, er, I mean Dewy has already done it. One factor (for me, at
least) is that the oepnings have got to be smaller than the average fingerpick,
because I throw a fingerpick at least once in every gig, and can you imagine the
nightmare if it dropped down onto the cone? You'd have to get it out before you
could go on.
"Have any materials other than aluminum been used in cones?"
=> Didn't Tut try one once, or am I thinking of bridge inserts?
Quoting Keith Hunter <troutdog@rof.net>:
"I am going to add to Lynn's questions. Which coverplate pattern has the most
open area, the Lyre or the Fan?"
=> Another good question. If I had a couple of spare plates, I'd measure them.
I'd like to know myself. What I would do, if I had the plates and the time, is
take each coverplate into a darkroom, put it on a fresh piece of photographic
prining paper, expose the paper to a strong light positioned high overhead,
then develop the paper. That would give a two-dimensional image of the holes.
Then I'd put the paper on my digitizer, trace each hole in AutoCAD, and use
AutoCAD's area-measuring function to calculate the total area. A bit tedious,
but it would give a very accurate measurement of the aggregate hole area.
Or as we say round here, "the hole nine yards."
Ken Brown
Austin, Texas
WWDDD? (what would Dick Deneve do)
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