Mass Principle (Argument Not Related to Mass Principle Removed)
I have been reading quite a few posts on PP where great significance has been given to the proposition that the physical mass of a bow is directly related to its length, width and intended draw...
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Dennis,No doubt you are a real connoisseur in traditional archery. I have not read any of your quoted books, that's a shame, and so far I have to credit Tim about all I have understood about design...
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Dennis: First, thanks for making me drag out my old 1947 first edition Technical Side. It's been a while. 25 or so years ago I xeroxed every page and crudely bound them and gave copies to a few...
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Tail end of the above---I'm a bit rusty. . here, the limb overstrained, but only about 20% of the bow's energy is stored here, so energy lost to hysteresis is low. Outer 1/4: The front view of the...
View ArticleRe: Mass Principle (Argument Not Related to Mass Principle Removed)
You summed it up nicely Tim.
View ArticleRe: Mass Principle (Argument Not Related to Mass Principle Removed)
This is a very interesting discussion. However, I can't contribute anything. Tim, your friend with an engineering doctorate is a smart man. I wouldn't take you up on your offer either. None of this...
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Thank you to Joachim, Badger, Sumpitan and Tim Baker for making clear the latest thinking on hysteresis, mass distribution, and the other design issues here. I actually think this is a very compact...
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JoachimM wrote:Stiff woods (on the right of the graph) aren't worse bow woods, they just require a different design (as per Paul Comstock): make them longer or thinner for higher stiffness and lower...
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Frankly, I'm often confused when the subject rolls around to the technical side of making bows, etc. Lurking around the edges of the ocean of data is where I prefer to remain for safety. Been...
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I believe that fps hunters and game hunters are brothers.
View ArticleRe: Mass Principle (Argument Not Related to Mass Principle Removed)
French Crow wrote:Rod wrote:... has yet to be fully realised as a completely and precisely predictable method in every case.What it does provide is a very useful set of guidelines, which for me have...
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I have to agree with Ken on this one. Although the principle of his argument is fair, I don't think it applies in this case. Indeed mild compared to other discussions I've seen. As far as the mass...
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This is very interesting topic, especially when Tim Baker chimed in! Steve’s mass principle is very clever method for helping bow making. I think that the best thing is that the mass principle relates...
View ArticleRe: Mass Principle (Argument Not Related to Mass Principle Removed)
Tuomo, I may have misworded a sentence here and there as I was half asleep. What I meant to say was that I found I could optimize performance by using a slighty higher mass than I used to use. A year...
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Some questions that come to mind in this discussion: 1.) Is there any correlation between wood type (or specific wood properties.... like stiffness) and hysteresis, or is a bow's hysteresis only...
View ArticleRe: Mass Principle (Argument Not Related to Mass Principle Removed)
Plan B most all of your questions were answered in above posts. I feel hysterisis is the same as set that recovers gradually. In the case of hysterisis it is recovering slightly slower than the arrow...
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Steve - thanks for answers. I was thinking that were you "put" that extra mass? Would higher mass mean wider limbs, which means lower set and hysteresis, which means faster arrow. But how far we can...
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Yes there is a max width, you don't want any more or less width than you need. You don't want to stretch it at all, the mass principle helps to put you in line with the right amount. Using the no set...
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I remember when a black locust bow broke at full draw because I had thinned a portion towards the tips too much. I should have narrowed. Yes, badger, to reinforce, often times when I am making a bow I...
View ArticleRe: Mass Principle (Argument Not Related to Mass Principle Removed)
As I noted in an edit to the original post, an unfortunate argument developed that has nothing to do with the Mass Principal or bow making. Because other parts of the conversation were both...
View ArticleRe: Mass Principle (Argument Not Related to Mass Principle Removed)
Dennis, as far as I'm concerned, no harm was done. However, I don't see the point of arguing on whether or not the form was considered fair and by whom. There was some disagreement, some heated...
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