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Type: Posts; User: Richard500

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    Re: how do you clean your files?

    Tusq is a proprietary item, no composition available, no msds, but probably a phenolic. Likely known under other names. As such, very limited solvent possibilities. Ashing it will convert it to...
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    Re: how do you clean your files?

    Pitch and resins on files and power saw blades can usually be dissolved with laundry detergent. Soak for an hour, brush or filecard clean, then oil for rust protection. If you have commercial blade...
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    Re: Antique frets and 12 string tailpiece

    Ok, all done. Three separate odd jobs: tuner braze, binding repro, and tailpiece.
    The 12 string tuner had one broken worm bushing - not pulled out, but sheared. The bushing is brass, the plate...
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    Re: Vibratone Venetian Style Mando

    Johnny, you said ‘help’ and didn’t get any answer, so...
    Buttons are available from either luthier supply houses or just on ebay. However, you need to know how yours are attached, how to take the...
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    Re: Unusual maple grain pattern

    Interesting. Have you played one of them? Looks like difficult bow access. Was Ashley seeing guitars in his dreams? Any reasons, or patent claims for the shape?
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    Antique frets and 12 string tailpiece

    Finishing up the restoration of an Oscar Schmidt 12 string bowl back. On this one, as on several others, the frets are not only narrow, but essentially flat-topped. Were they always crowned? Am I...
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    Re: Schaller Grand Tune Tuning Keys

    @Adrian. And you should, because that isn’t breaking in; it’s cleaning up an engine that has no oil filter, splash lube and aluminum cylinders. The expected lifetime of consumer grade engines is...
  8. Re: two frets sound the same/newbie restringing problems

    Two quick tests: First, lay a sharp-edged ruler or just a sheet of paper along the frets to see if one or more are high or low. Betting on this. Next, measure the string heights above the 12th...
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    Re: Schaller Grand Tune Tuning Keys

    @Adrian Thanks for that mention of plating after assembly, which is a bad idea both for cosmetics and durability. It’s difficult enough to plate anything with recesses or sharp edges, but the...
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    Re: Electric Mandolin Build Help?

    @Dave. The physics agrees with you about sustain. With a rigid body, virtually no energy from the strings is lost making the mandolin top vibrate, but the double strings are doing a much more...
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    Re: Replacement for Eastman Mandola Tailpiece

    These hooks, cast or stamped, can fail for a couple of reasons, but old mandos sometimes just have doubled up strings after a hook failure, and it’s proof that they mostly can take the strain of even...
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    Re: Pickguard Reset on Weymann Bowlback

    Nevin’s correct, the ignition point of even fresh celluloid is very low, and a 100 year old pickguard has curled because it has changed it’s composition over time. This is why it may not flatten...
  13. Re: Should I learn to make bridges while I'm at it?

    Rob Roy states that a bridge is very important to better sound. Hildreth says ‘parts are parts’. In my admittedly outsider view, other than good contact and intonation, I can’t see where there is...
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    Re: Adding or replacing binding?

    Count yourselves lucky, even if some customers are ‘unrealistic’ or just PITA. Mine have been universities, government agencies and large companies, where, if there’s one sensible, understanding...
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    Re: Hand tool point blocks

    Clever. Only comment is that 60 degrees is steep, more on the scraper angle than plane. My tiny planes, like big ones are mostly 40-45. And scraper cards are not hardened quite enough, and I don’t...
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    Re: Schaller Grand Tune Tuning Keys

    Looking at the online photos of these tuners, my guess is that tightness is not so much axial binding on the worm as the more usual lack of clearance to the spur gear. Unfortunately, they seal the...
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    Re: Adding or replacing binding?

    Acoustics, cracking, purfling, binding. On violins, it is likely that the purfling (which is pretty deep) prevents cracks that start at the cut end of the wood from propagating, and maybe also helps...
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    Re: Hand tool point blocks

    Dick, I don’t want to clutter up this forum with less-related stuff, but can’t resist. For the narrow widths you might need in a plane blade, the classic metal source is an old file. Even the most...
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    Re: Hand tool point blocks

    Planes are easier to make in two halves so you don’t have to excavate the interior cavity. Traditional molding planes are difficult for that one reason. They are also difficult to adjust and use...
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    Re: Deterioration due to closed case

    . All plastics deteriorate with time and usually sunlight makes it worse. But I understand museum creators have huge problems trying to preserve early plastics. In my youth I worked with PVC and the...
  21. Re: Lowering Insert (Saddle) on Non-Adjustable Bridge

    Mandrian, I’m rethinking this. As I’m not in the trade, I may be wrong, but here goes: It could be much easier to lower the slot in the wood part than to accurately deal with the bone saddle. The...
  22. Re: Lowering Insert (Saddle) on Non-Adjustable Bridge

    Yes, your geometry is correct. You don’t need to restring to test progress, using a long straightedge will allow you to see how much you’ve dropped (not what the actual string clearance is, because...
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    Re: Bowlback repair of missing back strip

    Well, if you did glue in a few, the tin hat crowd would claim it cures arthritis of the pick hand.
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    Re: First attempt at heat bending: questions

    Here are a few cartridge heaters on my bench. I use these for unrelated products. They are available from $20 on up, choice of diameter and wattage. Also called rod heaters. 2” diameter thinwall...
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    Re: First attempt at heat bending: questions

    I’ve read that dry bending (or at least slightly moist bending) is used because it works better than steam on figured/brittle woods, causes less color change, chemical change and breakage. OK. Is...
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