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violinoalto

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  1. Hi You can use 1. JOHA Water stain 428 old golden brown 2. JOHA figerboard oil + pumice 3. Shellac (+ pumice) When the flames are weak or missing, someone uses a weak solution of potassium permanganate, KMnO4. This allows you to make the flame artificially. You can weaken the permanganate solution with a small iron nail so that the oxidation is not so strong.
  2. I bought a few pieces of standard wood. It's nice. The origin of the wood may be Ukraine or Romania. Unfortunately, he is young, so I will wait a long time before I make some violins out of him. Mr. Šíma also has nice wood from a Slovak supplier - www.tonewood.sk
  3. it's authentic. There are many such violins. Luby u Chebu - Schonbach 1900 - 1940, as a colleague writes here. Rather younger after 1930. Older have a sign Antonius stradivarius cremonensis, faciebat 17 .. or similar, there are more variants, but without made in czechoslovakia When they are made of good material, it is good to work out the top plate. Then they play well. Old wood plays well. I repair several such tools every year. Now I have two in workshop.
  4. I think you have little oil there It will be a fragile varnish
  5. it is not planned it's a clot. oils and amber rosins at low temperature. No polymerization was performed. at 230 ° C, the amber rosin does not even dissolve
  6. Hi For combining linseed oil and amber kalufuna. Higher temperature. similar to sandarac Heat the rosin to more than 300 C, I think I did 320C Heat the oil to 280 - 300 C Slowly add the hot oil to the rosin and stir Then slowly lower the temperature to 250 C and you can add more resins if you want. Cook until fibers begin to form (beginning of polymerization) colored, dark, golden brown varnish
  7. Hi Now I have the same problem. I'm doing Mediceo 1716 The G mold has a stop length of 197 mm. It is in principle how Stradivari made the position of the F hole. Then the strad f hole will have the correct stradivari position. I want to have a stop length of 195 mm. Today it is a standard. I extended the f hole up and down. This location resembles strad approximately, but it is not according to the principle how Stradivari did the position of the F hole This is my personal solution I haven't f hole finished yet
  8. Musím upravit svůj příspěvek na rok 2014 Od té doby jsem provedl mnoho variant varnishis, které jsem vařil s nízkou teplotou a dlouhou dobou cca 120 C - světlé laky Vyšší teploty až 300 C-tmavší laky Nejraději mám vaření mezi 170 ° C - 250 ° C Také jsem vyzkoušela spoustu pryskyřic a jejich směsí borovice, modřín, jedle, jantarová kalafuna, sandarac, samotný nebo smíšený - obvykle dvě části a to vždy 1 tmel lněný olej v poměru 1,2-2,5 hmotnostních dílů na všechny pryskyřice - takže tvrdost - měkkost barvy Dnes si myslí, že čím tmavší lak, tím lépe. Aplikuje se
  9. I have my own warnish mainly thanks to the maestronet pegbox
  10. 1889 - 1942 czech violinmaker. Usually the model of the stradivari, oil warnish. Source Karel Jalovec He values him as excellent
  11. Hello from cz School violin. Factory production from the town of Luby near Cheb. Formerly Schonbach
  12. Hello I have tried borax-casein and claim to be the most water resistant than other protein grunts. I also happened. I used to color Rubia tinctorum in alcohol. An unexpected reaction came and the violin got the orange - red color. First I was afraid, but in the end I like it. Have you ever been such a thing? Reaction of boraxcasein to some wood staining? Maybe it could be used.
  13. ....i forgot translate sry
  14. violinoalto

    Violin ID

    Jiř Štoček worked in Nechanice (Jalovec) Violin I think the Czech manufactory and you were doing in the Schonbach area Similar headers for these, I've seen them a lot
  15. And I noticed that pine resin cooked with CaO is less moisture-proof. I deal so, As David Sora said, I'm doing Oil: all resins between 1.5 and 1.9: 1 weight (also because I think oil: resinous than 1.5: 1 is pretty fragile and hard. .... and also make a mix of more types of resins + ..... example Sandarac + coniferous resin (2-5% CaO) + Mastic Then I tried to cook with Fe2O3 - but it is stable only up to about 160 ° C Most of the solution is. Although the varnish in the glass is dark and the color then the thin layer on the violin is a little
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