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The best shape for a reflexed bow?
Badger:
I misspoke earlier. It is the Gary Davis form that I adapted as my regular.
Bob Barnes:
--- Quote from: Badger on December 15, 2025, 07:41:13 pm --- I misspoke earlier. It is the Gary Davis form that I adapted as my regular.
--- End quote ---
I copied Gary's for at MoJam many years ago and it's the only reflex for I have ever used. My D/R form is an adjustable model that I also copied from a MoJam form that was made by Patrick Bumgardner.
sleek:
Patrick has made probably the most powerful bow for its draw weight ive ever seen. He isnt on here much anymore, but his handle is Lebhuntfish.
Bob Barnes:
--- Quote from: sleek on December 15, 2025, 07:56:44 pm ---Patrick has made probably the most powerful bow for its draw weight ive ever seen. He isnt on here much anymore, but his handle is Lebhuntfish.
--- End quote ---
It was built using this (his original) form.
Tuomo:
--- Quote from: willie on December 15, 2025, 05:05:06 pm ---Isn't it the shallow angle at brace that gives the high early draw weight and increases stored energy?
whereas excessive angle at full draw leads to stacking or an increase in apparent draw force but not stored energy?
--- End quote ---
Yes, just like that! If you play with VirtualBow, you will find that the more string contact there is (especially with deflex–reflex designs), the more energy is stored. However, this requires that the string contact opens; in other words, there must be no string contact at full draw. See Model 4 with 90-degree recurves: because it does not open even at full draw, it is not a good design.
However, measuring the string angle at full draw is not very practical. As Simk said earlier, “It’s enough if we understand the concept and know the general guidelines to keep the angle low.” With the VirtualBow program, it is quite convenient to model different kinds of bows and gain a better understanding of bow behavior.
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