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Matthias Lange

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    Rottenburg, Germany

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  1. Very nice ground, Davide and Michael S. ! Reminds me a lot of Koen Paddings Linea Cremonese, which I liked a lot. Still looking for a replacement...
  2. Matthias Lange


    Nice self-destruction by RobertL... I'd like to add two points to the discussion: 1. Radiation from the f-holes is mainly a low-frequency phenomenom. At higher frequencies, air movement through the f-holes might not be necessary at all. When you continue to learn about violins, you will soon realize that your current picture is much too simple. 2. The violin is not a 2 -dimensional object. Try to sketch a side view of your violin and f-holes. My guess is that your f-hole design will look very strange from the side, at least if you are planning to use a somewhat regular arching.
  3. It seems that whatever caused it to break, also moved the bridge several millimeters towards the bass side. It must have been a quite strong impact. Please put the bridge back into the correct position and check your violin for cracks and other damage.
  4. What do you think about this post from Guy Harrison's bench thread? It seems that some wear around the edges/corners does happen.
  5. It is no wonder that, of the presented models, the cycloid showed the best match. 1. A circle has one degree of freedom. The radius. There are no inflection points. 2. A sinusodial curve essentially (if you neglect amplitude, which will not change the inflection point) has also one degree of freedom. The period. The inflection point will be at multiples of pi. 3. Curtate cycloids have an additional degree of freedom: The relation between radius of the rolling wheel and the position of the tracing point. This leads to a variable position of the inflection point. Or as one of my teachers used to put it: You can fit an elephant with 11 degrees of freedom.
  6. It should translate to something like: To Luis Manfio, with many congratulations for wonderful instruments! Rich sound, good sonority, and flexible colors! It would seem he liked your violas a lot...
  7. Thanks for your suggestions! However, I will only stay for a few hours because I am traveling with my one-year old son and we have to get back to lago d'idro in the evening. So no opera this time... I'll probably visit museo del violino, walk around a bit, maybe visit a violin workshop and perhaps cremona tools...
  8. That's perfect. Both threads are very helpful! Thank you.
  9. Hi everyone, it's been a while since I last posted here. I'm currently spending my summer vacation in northern italy at lago d'idro, which is quite close to Cremona. I'm planning to spend a day in Cremona and I am looking for advice on what is considered as the most important things to visit? I know that there have been several threads on this topic over the past years. However, I failed to find them using the search function... (I only found two old threads, dating back to 2009) Any advice or link to these previous threads is greatly appreciated. All the best, Matthias
  10. The Brandmair/Greiner "Stradivari Varnish" Book contains excellent photos of the Hellier. Matthias
  11. I've always had the impression, that the arching templates are just cycloids fitted to the length and height of the arches, which don't need to have much in common with the original... However there are photos of the arches, taken at a low angle with a laser along the arch. These are useful. You can make pretty good templates from these photos, if you know the measurements for the length and height of the arches and guess the angle the photograph was taken at. The slight distortion due to the angle can easily be corrected in photoshop. Matthias
  12. Here is an scroll template I made some time ago. It is the Titian Strad. Matthias
  13. I hadn't even realized that the Sarasate has an oppio back. Thanks for pointing it out. That's a pretty good explanation for the scribe lines. I've got some oppio and will try if scribelines swell back less than on sycamore maple (acer pseudoplatanus). Matthias
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