Bombatura della tavola - Appendice

Uso del profilometro per rilevare e disegnare le quinte e la sesta delle bombature.

ENGLISH TRANSLATION of the written notes in the video, in order of appearance :

0' 07" - Top arching - Appendix : use of the profilometer to detect and draw the fifths and the sixth

0' 17" - Use a profilometer with the tips of the blade rounded, so that it does not leave marks or engravings on the delicate wood surface

0' 45" - With this tool it is possible to make an immediate comparison with any of the reference curve in a simple and quick
way

1' 42" - It also offers the opportunity to draw the curves of the arching with sufficient precision, allowing comparison with those of future work

2' 22" - Mark the maximum height of the fifths and the thickness of the edges, still measurable accurately at this point of the working, to draw the baseline

2' 47" - Take in this way all the fifths at the predetermined positions (maximum widths of upper and lower bouts, minimum width of C bout, minimum widths at upper and lower corners)

3' 14" - Take in two stages also the sixth, drawing in advance the baseline, the maximum height at the center and the minimum thickness of the channel at the two ends to obtain a precise mating of the two half curves (or use two profilers coupled to do it in one go)

4' 09" - In addition to the position of fifths, measure the heights in points symmetrical in relation to center of the arching in order to assess the symmetry, marking them on the drawing of the sixth

5' 15" - Using a series of circles drawn on a sheet of transparent paper to detect the radius of curvature of the central portion of the curves of fifths, marking it on the drawing
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Видео Bombatura della tavola - Appendice канала Davide Sora