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Author Topic: Is this tiller ok?  (Read 2356 times)

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Offline LJB

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Is this tiller ok?
« on: June 25, 2012, 11:58:35 am »
Hi Guys,

i've been carving on a piece of spindlewood lately (Eonymus europeus).
Unfortunately i discovered a tiny crack in the back of the bow after about 100 shots. I tried fixing it with 3 layers of cloth (hope thats the right word..). Starting with a small piece, bigger piece, biggest piece then hemp windings over it. Before i sanded out the crack, in this place the upper anual ring ist totaly removed in an area of about 3x4mm. Only lots of shooting will tell if the fixing was succesfully.

The crack:



unstrung bow, tipps are to thick, its not finished yet:



42#@28" (before the crack was fixed):



Snaky baby, before fixing the crack:



If the tiller is ok i will finish this bow an spend her a handle wrap.... and always be afraid it explodes at full draw ;)


See you,

Leo
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Offline toomanyknots

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Re: Is this tiller ok?
« Reply #1 on: June 25, 2012, 12:15:09 pm »
A sinew, flax fiber, or linen cloth patch will hold that together paired with sinew or linen thread wrapped around in and soaked in a good glue. What is the draw weight?
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"The way of heaven is like the bending of a bow-
 the upper part is pressed down,
 the lower part is raised up,
 the part that has too much is reduced,
 the part that has too little is increased."

- Tao Te Ching, 77, A new translation by Victor H. Mair

Offline Pappy

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Re: Is this tiller ok?
« Reply #2 on: June 25, 2012, 12:21:34 pm »
What TMK said on the fix,tiller looks good to me. :) :)
   Pappy
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Offline LJB

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Re: Is this tiller ok?
« Reply #3 on: June 25, 2012, 01:46:56 pm »
I put 3 layers of linen cloth on it, wraped it with hemp, soaked with waterproof white glue (every layer).
Draw weight is 42#@28", propably drops a little after sanding/finishing.

Well if the tiller is ok, i am gonna finish this one the next days ;)
Still afraid it might explode....

Leo

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Offline Newindian

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Re: Is this tiller ok?
« Reply #4 on: June 25, 2012, 02:21:14 pm »
If it I explodes there are still a few million usable trees ;)
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I like free stuff.

mikekeswick

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Re: Is this tiller ok?
« Reply #5 on: June 25, 2012, 02:44:17 pm »
Spindle is such amazing bow wood but mighty hard to find around here.
I personally would have used rawhide but it should hold ok. Your patch is all that needed as long as it's well glued on well - wrapping as well is probably unnecessary.
The unstrung picture tells you all you need to know about your tiller. ;)
« Last Edit: June 25, 2012, 03:08:44 pm by mikekeswick »
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Offline rossfactor

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  • Humboldt County CA
Re: Is this tiller ok?
« Reply #6 on: June 25, 2012, 02:56:50 pm »
IMHO wrapping a tension crack, in addition to a patch, does help.  Wrapping wont' help compression fractures, but a sinew, or linen wrap soaked in hid glue will hold splinters down.

Gabe
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Humboldt County CA.

Offline LJB

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Re: Is this tiller ok?
« Reply #7 on: June 25, 2012, 03:19:42 pm »
New Indian, there is enough usable wood, thats right, but an exploding bow could hurt the archer... :o

Quote from: mikekeswick on June 25, 2012, 02:44:17 pm
Spindle is such amazing bow wood but mighty hard to find around here.
I personally would have used rawhide but it should hold ok. Your patch is all that needed as long as it's well glued on well - wrapping as well is probably unnecessary.
The unstrung picture tells you all you need to know about your tiller. ;)

Hi Mickeswick,

in my area I can find enough usable Spindle, lucky me, still hundrededs of plants produce oly one nice stave. I chose linen cloth because it doenst strech (much).
I am not jet experienced enough to judge the tiller with help of an unstrung picture  :-\ but in my eyes this tiller looks fine. I know you guys over there are way more experienced thats why I asked.

Gabe, i see it that way!
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