Author Topic: tiller changing over time?  (Read 2053 times)

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Offline Frode

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tiller changing over time?
« on: July 02, 2010, 10:56:11 pm »
Hi all,
A while back I finished up a hickory sapwood pyramid (http://www.primitivearcher.com/smf/index.php/topic,19566.0.html), and while it still shoots smooth and fast, I've just noticed that one limb is bending a little bit more (an inch or so) than the other.  Evenly, no hinging or anything like that, just a bit more bend.  It also seems to have picked up about an inch more set over all than when it was new, still not bad though.  It gets shot about two hours at a time, once or twice a week, kept inside in the AC at about 72 F.
It seems as if I've read somewhere here that bows can change tiller with time and environment, but so far I can't locate the thread... is this true, and what, if anything, should be done about it?
Thanks,
Frode
If it doesn't rap the lintel, it might not be a longbow.

Offline ken75

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Re: tiller changing over time?
« Reply #1 on: July 02, 2010, 11:05:25 pm »
frode i've seen a few bows change a little bit usually will be the bottom limb, in that case i flip the bow moving the stronger limb to the bottom , most of the time touch up tiller can be done with a knife scraper and sandpaper. just curious wich limb seems to be the weaker

Offline Frode

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Re: tiller changing over time?
« Reply #2 on: July 03, 2010, 12:04:10 am »
Heh!  Had to think about that one, Ken.  The bow is symmetrical, I never got around to putting an arrow rest on it, and I do occasionally flip it over, but the weaker limb, in this case, is the bottom one.
Frode

[attachment deleted by admin]
If it doesn't rap the lintel, it might not be a longbow.

Offline ken75

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Re: tiller changing over time?
« Reply #3 on: July 03, 2010, 11:23:19 am »
if it was me i would keep strong on bottom

Offline El Destructo

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Re: tiller changing over time?
« Reply #4 on: July 03, 2010, 11:28:32 am »
Frode....lets see a full draw of it again....so We can see if anything Major is Happening here....otherwise I would be right there with Ken...and just don't put an Arrow Rest...and Flip it from time to time...
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Offline Frode

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Re: tiller changing over time?
« Reply #5 on: July 03, 2010, 04:02:59 pm »
OK, had to get a couple of pics... here it is full draw both sides up.
Frode

[attachment deleted by admin]
If it doesn't rap the lintel, it might not be a longbow.

Offline George Tsoukalas

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Re: tiller changing over time?
« Reply #6 on: July 04, 2010, 12:11:21 am »
Don't worry about it. I do tiller the bottom limb a little stiffer to start. Jawge
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Offline Eric Krewson

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Re: tiller changing over time?
« Reply #7 on: July 04, 2010, 10:17:44 am »
When this happends to one of my bows I cut an inch off the weak limb(always the bottom) and I have the tiller back to where it needs to be.

Offline Frode

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Re: tiller changing over time?
« Reply #8 on: July 04, 2010, 03:44:26 pm »
Thanks everyone!
Frode
If it doesn't rap the lintel, it might not be a longbow.