Hi, Guys; As I get close to finishing the Vulcan harp, I have this bit of a problem: the plans call for harp to be 1-1/2" thick and the bridge (it supports the...
A free String Analysis Spreadsheet is now available at MusicMakers, www.musikit.com, menu "Library", "String Analysis". The formulas used in the Microsoft...
Hi, All; I came across an article recently that said that woods like spruce come apart from the stress when used in harps-- or more precisely, when used in...
Hummmm,... I am going to guess that this article was written by one of the folks who sell harp kits with ply sound boards ? Or assembled harps with same ?? ...
That brings up a question I've been pondering about soundboards. A few years ago, I saw one of the most gorgeous lever harps I've ever seen. The soundboard was...
Ron, About 70% of the soundboards I have had to replace were plywood boards, but I think that says more about cheaply built harps than it does about the...
Acctually it might have been the quality of th ply chosen. Baltic birch delaminates under tension. One should use Aviation Grade Baltic Birch to assure a safe...
Hi Just as a matter of interest (or paranoia), how long after stringing does ply typically fail? My Regency harp has been strung for 2 years and seems to be...
Greetings All Nearly 20 years ago I built a version of the Robinson's Gypsy harp. Mark Boles helped me "soup it up" by going up one string gauge and four (4!) ...
Chris Spurrell
falcons@...
Nov 28, 2007 4:08 am
3698
Well, that's encouraging Chris. Thanks. I actually contacted the ply supplier who assured me that it was Aircraft grade, it is just our market here in New...
6-ply 1/8" thick, extremely dense panel of Aircraft Birch Laminate is available at MusicMakers, www.musikit.com, in three size sheets, Small - 36" x 20",...
I just found out that two of the frames I had made using Titebond was likely to come apart with little more than a sneeze or a hard look so my faith in...
You might check out the August issue of "Fine Wood Working" The feature article is "How strong is your glue" They evaluated different glues on Oak Maple and...
Chris Spurrell
falcons@...
Nov 29, 2007 2:41 am
3703
Hi, Chris; I had read that article; would have laughed if my frame wasn't falling apart. To say that Titebond is superior is a lot like like saying Scotch tape...
Hi Ron If it really is the glue, then it maybe worth contacting Titebond. I had a similar experience with some aliphatic glue, and contacted the manufacturer....
Hi Ron It sound like your Titebond was old?? It does best if you can keep it un-exposed to the air, and do not keep it too long, as it will die of old age. In...
Dear Ron I've used titebond since 1975, and have built harps with it since 1981. It is a good useful product. Please describe the "frames" that have fallen...
Hi, Glenn; I have two bottles of Titebond (Titebond an Titebond III) that I have gotten from Home Depot. On one bottle there's no expiration date-- no date of...
Arsalaan; Oh, by the way there's also a photo of an early template of the frame in my photo album so you can roughly see how the harp will fit together. I had...
Some places that sell hardwood lumber will do that for a very reasonable price. Roger Day Hi,very good or practical way to find out is it? :-) But I hope to...
I also forgot to mention that those 45" msple or walnut boards are very *heavy.* I may need to make a stand so that when I get those two pieces satisfactorly...
Hi, Guys; As I was zipping along, actually beginning to think that after buying a ton of new tools to finish my harp, I began to get cocky and came close to...
Lao Tsu may have dreamed: A bond will be as strong as its weakest element. But he did almost actually say, łThe grandest forms of active force from Tightbond...
Dan Cady
dcady@...
Dec 2, 2007 5:59 pm
3713
Lao Tzu also said that those heaven helps we call the sons of heaven-- but what the frell does that have to do with gluing a painted surface? :-) Ron ... ...
The paint is not glue. The glue adheres to the paint, and not the wood. So, relying on the strength of paint might be a toss up when it comes to the strength...
Dan Cady
dcady@...
Dec 3, 2007 4:54 am
3715
Thanks, Dan; Hmmm, the bottom/back panel only has to be screwed on so that presents no problem, leaving only the question of how to glue the top panel down......
Hi All, The Holy Grail of harp design is a step closer, Gibson guitars - http://www.gibson.com/robotguitar/story.html - have announced the first practical...
A self tuning mechanism looks like it operates by turning the tuning peg and altering the tension of the string. There being little new under the sun, Erard...
Greetings: I do not know if Gibson is using the same system or not, but I knew the inventor of a self tuning guitar. About 15 years ago I saw his invention....
