JohnCockburn

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About JohnCockburn

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  • Birthday March 23

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    Sheffield, UK

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  1. Cracks in Bending Ribs

    just make del Gesu copies
  2. Conforming f-hole templates to arching between c-bouts

    I really do feel that changes in A0 have a surprisingly small influence on perceived tone.
  3. Conforming f-hole templates to arching between c-bouts

    fair point, although I did some basic measurements a while back and found the square root dependence held pretty well.
  4. Conforming f-hole templates to arching between c-bouts

    approximately proportional to the square root of the area, surely? Subjectively, the influence of f-hole size on high frequency performance seems to me to be more important than what goes on in the signature mode range.
  5. Peter KG's Bench

    I've never seen commercial madder fading to this. Has it been deliberately exposed to strong sunlight for long periods? I've a couple of instruments that I wouldn't mind fading!
  6. What does this tool do?

    why not? (the edges used are those parallel to the handle)
  7. What does this tool do?

    As you said originally, Carl, it's a scraper burnisher, the "palette knife sharpener" thing is just a mistranslation, as often seen for Chinese tools on eBay.
  8. Looks like rasp marks on the flat surface of the pegbox and possibly going into the first turn of the scroll, gouge marks elsewhere. Not at all inconsistent with producing a tidy outline.
  9. Buying fingerboards

    Problems with all these factors led me to giving up buying "pre-shaped" fingerboards a few years ago and start making them from scratch. Only about 50% of the blanks I get tick all the boxes, but the they are a lot cheaper than pre-made ones and I can usually sell on the rejects to "normal" woodworkers who seem to regard the things we don't like (flaming/gnarly grain, streaking) as positive assets.
  10. My first real label. Is it missing something?

    https://archive.org/details/diegeigenundlaut02lt P600-ish onwards
  11. My first real label. Is it missing something?

    i'm just an ignorant limey.
  12. My first real label. Is it missing something?

    second thoughts, keep "pittsburgh" get rid of "PA" in the interests of de-cluttering. The only time I ever heard "pittsburgh PA" was when Chuck Berry needed a geographical location to rhyme with "Frisco Bay"
  13. My first real label. Is it missing something?

    Looks fine to me. I'd be inclined to go even more minimalist and not have the "pittsburgh pa". And maybe not use an "all caps" font. Makes it look a bit like a tombstone. Nit picking though. I like it. Because I generally do antiqued instruments I couldn't resist the hilarious pun of having "fecit" on my label. Is it glued in that position? Wants to be a lot closer to the ribs to be easily visible through the f hole.