Hello, there are some "close to be" standards with played hurdy gurdies, which might be usefull also for selfmade ones...
standard measures: length of melody-string from sliding nut to bridge: - 345 mm (+/- 5 mm) crank length 65 - 70 mm For best playability, the keys of both rows should be positioned so that the divisions of neighbouring chromatic keys are positioned in the middle of the diatonic keys. Where semitones appear in the diatonic row, the divisions of the diatonic and chromatic keys should be aligned. Some traditional keyboard setups do not follow these guidelines which means that some key combinations are harder to play. the standard keyboard setup "in C" with the open string matching the "G" - equaling the piano keyboard. In other words, the diatonic row of keys has the following steps: open string, from there: second - second - semitone - second - second - semitone - second - second - second - semitone - etc. or, in steps of C major: open string is G, keys for: A - B - C - D - E - F - G - A - B - C - etc. If acctually tuned to G/C Such an instrument also should include a capo for the trompette. The keys of the chromatic row should not interfere with the opened lid of the key box. This would be a construction problem which is nasty when you try to tune the chromatic keys. the geometry of the pegholes, the pegs and their holes for holding the strings, the sliding nuts and the strings needs to provide that: the angle between peg shaft and string is slightly more than 90° - so that the string pulls the peg into place and never pulls it out of the peg hole. some more info mihgt be extracted from: http://simonwascher.info/HGbuy kind regards, Simon Am 03.11.2011 um 08:07 schrieb Norm Sohl: > Seems like a reasonable way to start. The string length for the Lasner in > the Germanisches Nationalmuseum is 345 (from the plan I mentioned earlier), > as is my Hubbart HG, so that seems like a good starting place. Another point > to think about is where the tonic falls on the keyboard. Seems like the > usual (French) keyboard has the tonic on the third key (which is C in G/C > tuning). > > I am curious about alto HGs – the few I’ve seen have a wider variety of > string lengths (most of which are at least slightly longer than 345), and I > assume the tonic falls in a different location on the keyboard. The > instrument that Gregory Jolivet plays (for example) appears to be > considerably longer. > --Norm > > > From: [email protected] [mailto:[email protected]] On > Behalf Of Kazimierz Verkmastare > Sent: Wednesday, November 02, 2011 6:45 PM > To: [email protected] > Subject: [HG-new] Specifications for proposed 'builder gurdy' - part 1, start > with one important dimension > > I kind of like the idea of developing the plans for such a creature around > the best practices as agreed upon by those who know, specifically keeping in > mind the limitations of most beginner luthier's shop setup. Designing for > the beginning builder without being condescending, if that is possible. If > we are to truly gain the kind of understanding of the instrument that makes > it really worthwhile to build it, then understanding the design issues is > important, and there is no better way to gain this than actually designing > one. > > Besides, a functional plan set can allow those with more experience and > resources to do things like changing the body shape and style, changing the > head type, changing some aspects of the keybox, while staying faithful to the > important dimensions, sizes and angles. > > So if there are some interested in pursuing this flight of fancy, I suggest > that we first decide on a scale length. In my early research, while I was > looking to design my sinphone, I was trying to make things easy on myself by > settling on a good 'normal' string length so that I could obtain strings > relatively easily. After getting a dozen answers, the most common I received > was 345 mm. > > I am not suggesting we use that particular number, but I think we need to set > one important dimension in order to start designing the rest. Any other > suggestions or comments, from builders or players, on what luck they have had > finding strings for certain scale length instruments, and if anyone has > experience with multiple instruments with different scale lengths, what seems > to be the most conducive to playing different styles of music? > > Just trying to keep up the momentum up. > -- > You received this message because you are subscribed to the Google > Groups "hurdygurdy" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/hurdygurdy > > The rules of posting, courtesy, and other list information may be found at > http://hurdygurdy.com/mailinglist/index.htm. To reduce spam, posts from new > subscribers are held pending approval by the webmaster. -- You received this message because you are subscribed to the Google Groups "hurdygurdy" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/hurdygurdy The rules of posting, courtesy, and other list information may be found at http://hurdygurdy.com/mailinglist/index.htm. To reduce spam, posts from new subscribers are held pending approval by the webmaster.
