Primitive Archer
Main Discussion Area => Bows => Topic started by: snag on October 03, 2011, 01:58:12 pm
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I have been tillering an osage bow and was starting to think that I'd like to flip the tips a bit. Is it too late for that (I'm just about done with tillering) ?
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You can flip the tips anytime. Be aware that when you do you add extra stress to the limbs so be sure everything else is good before you bend them.
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I agree with Pat. I have flipped tips on bows that had a 1000 shots through them. I flipped the tips on an oak board bow that was several years old. It will add some draw weight and early string tension.
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how long after flipping do you guys usually let the bow re-hydrate before string it up again? I usually wait 4-7 days depending on the amount of heat gun I have to put to it to get it to plasticize the wood and get it to bend. Thoughts??
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I usually flip the tips early in the process so I don't pay attention to the time line. Depending on the R/H at the time at least 3 or 4 days for rehydration.
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I've waited just until the limbs cool again. Heck maybe an hour or two? I thought, "Hey, when it's cool, its cool. Not gonna get any cooler." Never thought much about rehydrating. Food for thought....
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Matt, even if the surface is cool the core of the wood can still be warm enough to relax the bends when stressed.
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I usually do about like Matt,sometimes over night if I am not in a hurry. ;) :) :) I usually flip them when I am about finished tillering,It make them easier to get the
first brace if they aren't flipped and I have never really seen a difference from doing it early or later on. :) :)
Pappy
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I let osage cool a few hours max and I let whitewood cool over night.
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Ok, got a flipping question.
In the TBB (don't remember which volume) it says that flipping the tips might not be worth it as to performance and just might be a detriment. Yet most PA gurus do it on the majority of their bows or so it seems. So what is the straight skinny on this ? Looks, performance ? What ?
Lane
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Performance,smoother draw with less stack due to the change of string angle. :) :) :) That is the main reason I do it,especially on shorter bows. :)
Never seen it hurt one,unless of course you break it while trying to flip them. ;) ;) ??? I have had that happen and that kind of stinks. :)
Pappy
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Johnston they are referring to recurves in that chapter, not so much tip flipping. I agree with Pappy, never had a bad experince with it. I either flip or recurve every bow I build anymore. The early string tension is worth it to me.
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So how flip is going to be good for a 66" ntn bow? Do you just put enough in that the string contacts the limb a few inches?
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Flipped tips shouldnt touch the string in my opinion David, recurves do however. Trace a half 5 gallon bucket on a 1 x whatever you have laying around. Cut that half circle out and bore 1 1/4" holes through for c-clamps. That diameter will give a fine flip tippin size. You can adjust by starting the tip at different points on the circle.
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Thank you Pappy and PD. Pearlie you are correct they were referring to recurves.
snag I thank you for starting this thread.
Lane
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Performance,smoother draw with less stack due to the change of string angle. :) :) :) That is the main reason I do it,especially on shorter bows. :)
Never seen it hurt one,unless of course you break it while trying to flip them. ;) ;) ??? I have had that happen and that kind of stinks. :)
Pappy
Some great input here, Well said Pappy about the advantages of flipping. I tend to do more as Pat dose and will rough in to floor tiller then heat treat the hole limb to about 2inches of overall reflex then flip the tips. I shoot mostly shorter bows and it dose help with string angle and draw.
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I always flip tips after the bow is done. It is a neat trick to take away a bit of set and add some additional string tension/bit of draw weight.