Johnmasters Posted May 31, 2018 Report Share Posted May 31, 2018 Since I am controversial, I will say that I prefer this outline to many Strads. I don't like the squarish bouts of some Strads, and the curves of the Bergonzi are well ... more curvey. A circle gives only curvature. I believe a good outline has continuously changing curvatures. Of course, you can use a LOT of circle to do this. (It is like the many many cycloids used before Newton proved the elipse in planet orbits.) I made my own viola patterns after many repetitions. One can block out areas with circles or even rectangles to get the basic proportions right. Then it is free-hand to make the final shapes. I dare say that in finishing an arch, most people rub their hands over the surface to find discontinuities in curvature. The hand can feel these, and the idea is to eliminate sudden changes in curvature (analogous tor trying to mate up tangent circles.) Has anyone found evidence that any Cremona makers stricktly stuck to any kind of geometric drawing involving only circles? Quote Link to comment Share on other sites More sharing options...
J.DiLisio Posted July 15, 2018 Report Share Posted July 15, 2018 Does anyone have the actual length of the MS1060 Bergonzi form? The measurements in the Reuning book don't seem to correlate with the images. The scale next to the image isn't helpful at all and yields a much smaller form (340mm length). The system of expanding a 67% reduced image by 150% yields a longer form by 2.4mm It's possible that the image has been stretched in the printing process or that there was a mistake in measuring. Given measurements.. Upper bout- 157.2 Lower bout- 196.8 Length- 342.6 (corner of upper block opening to corner of lower block opening) 150% x image size Upper bout- 157.5 Lower bout- 196.5 Length- 345 The instruments made on this form are around 352 in length. If you subtract 1mm for ribs and 3mm overhang that leaves 344. Any insights? Quote Link to comment Share on other sites More sharing options...
Advocatus Diaboli Posted July 15, 2018 Report Share Posted July 15, 2018 The measurements given for the lengths are 342.6 for ms1060 and 343.6 for ms1065 Quote Link to comment Share on other sites More sharing options...
J.DiLisio Posted July 15, 2018 Report Share Posted July 15, 2018 Nevermind, it seems the images are stretched and need a bit of correcting to arrive at the correct proportions. Quote Link to comment Share on other sites More sharing options...
christian bayon Posted October 15, 2022 Report Share Posted October 15, 2022 Trying again. Quote Link to comment Share on other sites More sharing options...
Dave Slight Posted October 15, 2022 Report Share Posted October 15, 2022 2 hours ago, christian bayon said: Trying again. You have really nailed it there! Absolutely wonderful work Quote Link to comment Share on other sites More sharing options...
christian bayon Posted November 19, 2022 Report Share Posted November 19, 2022 I concluded my Bergonzi copy, what an inspiring author! Quote Link to comment Share on other sites More sharing options...
Dr. Mark Posted November 19, 2022 Report Share Posted November 19, 2022 2 hours ago, christian bayon said: I concluded my Bergonzi copy, Really gorgeous. The thought crossed my mind that real wear could mar that beautiful finish lol. I didn't realize I was so perverse until now - Quote Link to comment Share on other sites More sharing options...
Dr. Mark Posted November 20, 2022 Report Share Posted November 20, 2022 On 10/15/2022 at 7:35 AM, christian bayon said: Trying again Incredibly beautiful. Quote Link to comment Share on other sites More sharing options...
joerobson Posted November 20, 2022 Author Report Share Posted November 20, 2022 On 11/19/2022 at 10:13 AM, christian bayon said: I concluded my Bergonzi copy, what an inspiring author! So fine! Quote Link to comment Share on other sites More sharing options...
Urban Luthier Posted November 21, 2022 Report Share Posted November 21, 2022 On 11/19/2022 at 10:13 AM, christian bayon said: I concluded my Bergonzi copy, what an inspiring author! show off Quote Link to comment Share on other sites More sharing options...
christian bayon Posted November 21, 2022 Report Share Posted November 21, 2022 Quote Link to comment Share on other sites More sharing options...
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