I agree - specs should be metric whenever possible. We end up using metric, fractional inches, and decimal inches in the shop, because our various tooling demands different things. I'd be happy to switch to all metric, but someone would need to buy us a new milling machine and a new metal lathe.
Alden On Nov 6, 1:45 pm, Arle Lommel <[email protected]> wrote: > I would suggest making all measurements in metric, and setting the default > wheel size at 178 mm, for the reasons listed below: > > Alden's size (7" = 177.8 mm) is normal for western instruments, which > generally have wheels larger than 160 mm (=6.3"). 170 mm (=6.7") is a pretty > typical minimum diameter in Europe, and, as you can see, Alden and Cali are > pretty darn close to that number. (Smaller than 170 mm for Western repertoire > as a smaller wheel imposes different rhythmic limitations on the dog. It cuts > both ways: playing Hungarian music on a large wheel is hard.) > > So unless you want to build a Central-/Eastern-European instrument or a > historic instrument, 178 mm is about a perfect size. > > Some makers will go larger than that for more complex instruments, but since > the goal is to create a reference instrument, there would be no reason to > have 12 strings or something like that and the 7"/178 mm wheel is good > choice, especially if you want to talk about measurements for other parts > where OMI instruments might be used as exemplars. > > Best, > > -Arle > > On Nov 5, 2011, at 23:01 , Alden and Cali wrote: > > > > > > > > > Our "standard" HG wheel is 7" diameter. > > > Alden -- 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.
