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About MikeC

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    Take the red pill, see the matrix.
  • Birthday 08/23/1961

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    Violins, Varnish, forex trading & many other things.

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  1. Homemade graduation caliper and final back plate graduations.
  2. Why do you want to cook in a closed container? Are you trying to retain something that would otherwise evaporate away? Rereading your first post you say in the absence of oxygen. What would be the reason for wanting to cook in the absence of oxygen? If it's a corked vessel I would assume any pressure build up would just blow the cork off if it's not in too tight but I would be concerned that the contents would also come out along with the cork. You asked about safety and I think a large open vessel is safer to avoid any possible pressure build up. I wouldn't want to be a victim of ho
  3. Do not use a sealed container. The best type of container to use would have tall straight sides and a large opening.
  4. I suppose you could use either holes for the C bouts. The holes in Catnip's picture I use for the upper / lower bouts.
  5. That's a possibility certainly, we do it now so there's no reason someone back then didn't think of that idea. But they did add some lake pigments and maybe even some small amounts of opaque pigments like cinnabar... looking forward to more input from Roger...
  6. Roger Hargrave are you suggesting the old Cremona guys did not put any color in their varnish?
  7. It's kind of hard to tell from those pics if the outline is good or not except the corners look a bit long.
  8. Can you explain more about this? Do you mean his plate outline? Or the thickness pattern?
  9. You mean like most Strads with all the varnish worn off?
  10. I like that! What is it?
  11. How do you make yellow varnish? Sounds like an interesting idea, using layers of different shades of color, might make a more complex looking finish. I've thought about starting with a yellow layer then adding more red in each successive layer so it would have the 'color change' effect as it wears away but I don't know how to make a yellow varnish.
  12. The ground color looks good. Can you say what it is or is it a secret sauce?
  13. Can you show a picture of your ribs with the corner blocks? I was thinking the upper corners look too long also, maybe the points of the corner blocks extend out too far. When I made mine I copied the blocks from the CT scan of the Titian Strad to make sure they were right. It's possible using the mold to get the outline right and still have the corners too pointy.
  14. I agree on the unsawn plate, it got a little better after I sawed it out, second pic. As I finalized the finished plate it got a little better still. When I get a chance I'll post pics of the finished plate, it's became a bit more curvy.
  15. I went searching and found it. An oval made by a three bar linkage... actually four bar but anyway... It may not look like it in the picture but when I put the plate from an old German Strad copy on top of the drawing the curves of the oval exactly match the C bout curves. Not saying a German Strad copy is a good example of a violin but it's all I had. Amazingly one linkage makes both curves without changing it's position.