« previous next »
Pages: [1]

Author Topic: Limb crack help needed - Pics added  (Read 2120 times)

0 Members and 1 Guest are viewing this topic.

Offline kavogt

  • Member
  • Posts: 13
Limb crack help needed - Pics added
« on: April 15, 2010, 04:32:10 pm »
I'm trying to salvage my second attempt at a linen-backed red oak board bow. After about 50 shots, it's developed a crack along the back just under the linen backing. Following advice I found looking through old posts here, I've filled it with CYA glue, but don't know if i should wrap it or not. If so, can I use the same wally world hemp twine I used for the handle, or is that too thick? Would my nylon no. 4 serving string work?

Thanks for any and all help. If it weren't for this board I'd have never gotten even this far!

Ken
« Last Edit: April 20, 2010, 12:43:02 pm by kavogt »
Logged

Offline El Destructo

  • Member
  • Posts: 8,078
  • Longhaired Crippled Hippie Biker And Proud Of It!!
    • Desert Sportz Primitive Archery
Re: Limb crack help needed
« Reply #1 on: April 15, 2010, 06:54:34 pm »
The Twine would be too thick...JMO...I would use the Serving String....put it on tight...and then soak it good with Super Glue and let it set till dry...make sure to go past the Crack in both directions a half inch or so....just for good measures
Logged
As a species we're fundamentally insane. Put more than two of us in a room, we pick sides and start dreaming up ways to kill one another.Why do you think we invented politics and religion.
Think HEALTHCARE Is Expensive Now,Wait Till It's FREE
Do Or Do Not,There Is No TRY
2024...We Will Overcome

Offline Eric Krewson

  • Member
  • Posts: 5,432
Re: Limb crack help needed
« Reply #2 on: April 15, 2010, 06:56:21 pm »
I like serving thread for wraps. Soak the thread with superglue after you finish the wrap.

Logged

Offline El Destructo

  • Member
  • Posts: 8,078
  • Longhaired Crippled Hippie Biker And Proud Of It!!
    • Desert Sportz Primitive Archery
Re: Limb crack help needed
« Reply #3 on: April 15, 2010, 06:58:19 pm »
                               Are We in the Alps...thought I just heard an Echo............ :P........ ;D.............. >:D
Logged
As a species we're fundamentally insane. Put more than two of us in a room, we pick sides and start dreaming up ways to kill one another.Why do you think we invented politics and religion.
Think HEALTHCARE Is Expensive Now,Wait Till It's FREE
Do Or Do Not,There Is No TRY
2024...We Will Overcome

Offline kavogt

  • Member
  • Posts: 13
Re: Limb crack help needed
« Reply #4 on: April 16, 2010, 05:38:21 pm »
Thanks for the help. I have it soaking in superglue now!
Logged

Offline Mike_A

  • Member
  • Posts: 211
  • Mike Ailstock Gatesville, TX
Re: Limb crack help needed
« Reply #5 on: April 16, 2010, 05:54:51 pm »
I learned on here when I first started attemping to build bows that rounding off the corners really helps prevent cracks like that. Have a good one. Mike
Logged
Proud member of PETA ( People for the Eating of Tasty Animals)

Offline kavogt

  • Member
  • Posts: 13
Re: Limb crack help needed
« Reply #6 on: April 18, 2010, 06:02:32 pm »
Thanks Mike - just how much rounding? I sanded the edges down a bit, but apparently, not enough. Also, anyone have any preference for the number of layers of linen fabric? I'm using just one, but it's not thick fabric (think appropriate weight for a shirt or pants) and I'm wondering  if that's enough to have much benefit.
Logged

Offline AncientArcher76

  • Member
  • Posts: 1,113
Re: Limb crack help needed
« Reply #7 on: April 18, 2010, 09:01:02 pm »
Also depending on position of crack a rawhide patch sometime will do the trick!

Ru$$ell
Logged
Time, dedication, cuts, tons of broken rock, a wife, and perhaps a few girlfriends are some of what it takes in becoming a skilled flint knapper!!!
 
"Ancient Art"  by R. Hill

Offline Orkraider

  • Member
  • Posts: 159
Re: Limb crack help needed
« Reply #8 on: April 18, 2010, 09:43:03 pm »
everything I've seen says one layer is sufficient, but I used 2 layers of linen on the bow that Didn't break. For me, that's what I'm doing from now on. =)  Also, I've seen anywhere from 1/8 to 1/4 inch of rounding. I didn't do that on "the bow that lived", but I will on my next.

Best of luck; any chance of seeing pics of more of your bow?
Logged
Riley, Saint Paul, MN

Offline mullet

  • Global Moderator
  • Member
  • Posts: 22,911
  • Eddie Parker
Re: Limb crack help needed
« Reply #9 on: April 18, 2010, 10:26:59 pm »
 It should be fine if you wrap it like Eric and ElD suggested.

 ElD, You and Eric posted 2 minutes apart ::)
Logged
Lakeland, Florida
 If you have to pull the trigger, is it really archery?

Offline sailordad

  • Member
  • Posts: 5,045
Re: Limb crack help needed
« Reply #10 on: April 19, 2010, 12:18:49 am »
i would wrap it with serving thread if it was mine  ;) :D ;D
yodalayehoo

Mike,that was for you  lol
Logged
i always wanted a harley,untill it became the "thing to ride"
i ride because i love to,not to be part of the crowd

Offline kavogt

  • Member
  • Posts: 13
Re: Limb crack help needed
« Reply #11 on: April 20, 2010, 12:42:30 pm »
Thanks, the serving bandage seems to be working! I may give the next bow a double layer of linen, just to see.

Here are some pics of the finished product.



Tiller is far from perfect, but, as I was at 37# at 28" I figured I'd stop before I really screwed it up.
Logged
Pages: [1]
« previous next »