Michael.N.

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Everything posted by Michael.N.

  1. Just can't help himself. He's at it yet again, despite all the warnings. I'm finished with this forum.
  2. I don't think the denaturant is a poison as such, just foul tasting. The poison is the alcohol itself.
  3. Bio ethanol also contains a denaturant although it's a small amount. I'm surprised that denatured alcohol contains 50% methanol. I thought in the US it was around 20%. In the UK it used to be around 5%. I'm referring to the stuff with the purple dye. It no longer contains methanol. In the EU the 'recipe' was harmonised, perhaps 6 or 7 years ago, methanol was removed.
  4. It's the nature of French polishing that ensures a thin finish. I suppose you could end up with a thick finish if you kept at it for long enough. Most people become bored long before that happens though.
  5. You can use Bio ethanol. It's basically ethanol with an added denaturant but without the added purple dye i.e. it's water clear. It's commonly used for stoves and fires. The large DIY shops often sell it. Also available on the auction site. Cheap, well it is compared to Everclear. Methylated spirits (at least in Europe) does not contain methanol. It's ethanol with a touch of propanol, ethyl methyl ketone and the dye. It's now a standardised recipe throughout the EU. In the US it may still contain methanol but I'm not familiar with the current practice. The strong (97% +) isopropanol also works. It's slower to flash off than ethanol but in real life the difference is marginal, to say the least.
  6. Not sure it was strictly marketing. More likely a continuation of plane blade making practices such as Sorby and your Nurse. The Stanley and Record laminated blades are perfectly good blades. They are thinner than the type found in old wood planes but if everything is set up well, the blade made razor sharp, then these planes are extremely capable. The idea is also similar to that found on Japanese chisels i.e. a hard steel backed by a softer steel.
  7. Sorry fiddlecollector, that's not true: https://recordhandplanes.com/dating.html
  8. I seem to recall that there were some Stanley blades that were laminated too. I could be wrong about that. The lamination does end below the key hole slot, as Greg states. If you look very closely you might be able to see a line running across the blade.
  9. I have two Record planes. I think both are from the early 1950's, one is a stay set. You can date them (roughly) by the blade and the planes features. The stay set is definitely a laminated blade, the other not. Both state crucible tungsten steel. The steel in both is perfectly good. Never felt the need for an aftermarket blade (although I've had a few for other planes).
  10. I recently read that you should use the diluted bleach solution within 24 hours and it should remain on the surface for some 10 or 15 minutes before wiping it off. Presumably the bleach solution becomes weaker over time. I've absolutely no idea if that is true though. Not sure I'd want to dowse apples or carrots in bleach solution. Waiting weeks isn't really viable either.
  11. Let's face it. The world was very ill prepared for a pandemic of this nature. We can't even supply enough masks and personal protective equipment for our health workers. Such a basic and easily manufactured product.
  12. Yep. Think I'll stick with scratch stock. We can all scratch our stock.
  13. I wouldn't worry about the label. Strong or weak, either way someone will be along quite soon to swap it out.
  14. Or perhaps just leave alone and enjoy that sweet sound. It is what it is but perhaps here is a case where function is much more important than appearance.
  15. The Youtube/Maestronet/Delcamp school of instrument making is churning out hundreds of new makers every single week! Welcome to the world of competition folks!
  16. No methanol in EU methylated spirits, hasn't contained it for some years. US variety may well be different.
  17. Too many variables to come out with over simplified categories. Certainly the more mass produced instruments should vary in sound enormously. They are less likely to be selecting wood based on density/stiffness and just using the next piece that came off the pile. As such it's perfectly possible to come across one where 'all the stars align' and it sounds way above what one would expect.
  18. I've been told that it's pretty difficult to make identical violins. Perhaps if it was 'identical' violins x 10 and all the results still matched I might be a bit more convinced. Then again what spirit varnish are we referring to - soft, hard or somewhere between the two?
  19. I wouldn't rule out the tactile effects that Martin suggests. Not at all. The other factor that might be at work is that the strings are likely to have been subject to a big reduction in tension before being brought up to pitch again. I've no idea if that's a large enough change to do anything, just something else to put into the mix.
  20. Once you finger a note the nut is out of the equation.
  21. Do a search on shellac and sodium hydroxide. Doesn't seem to be a simple matter of just adding a scoopful of the stuff. Chemmy seemed to really know his stuff when it came to shellac.
  22. At some point you've got to stop digging that hole. I had a baroque cittern, circa 1780. Maple back and sides, no overhang, edge of back flush with the ribs, guitar like. I removed the back to repair a couple of loose braces. When it came to gluing the back on (a few days later) the back no longer fit the outline of the ribs. The ribs had grown in size, no matter how much I pulled and pushed the back was never going to sit flush all along it's perimeter. It fit before I removed the back and yet a few days later it didn't. Nothing to do with RH either. Sometimes wood is going to do what wood wants to do.