Primitive Archer

Main Discussion Area => Bows => Topic started by: ReconBowyer on July 21, 2012, 01:25:56 am

Title: Not sure if I have the correct sinew to apply to back of bow--please help.
Post by: ReconBowyer on July 21, 2012, 01:25:56 am
I bought this stuff, labeled "sinew" in a trading post not far from the little big horn battlefield.  I was originally interested because as you can see the pieces are very long, and I thought that might make it easier to glue on the back of my first attempt at an osage orange bow.  However, once I got back to Texas I started comparing pictures and videos of the tendon/sinew being applied to the backs of bows--to this stuff.  I don't believe I have the right thing here.  When I asked the lady working the counter at the trading post she said she thought it was Elk sinew--I thought she might be right because of the size.

Can anyone help me determine if what I have is the correct sinew to hide glue to the back of my stave?  I'm at the point where I'm ready to order some hide glue, but I'm wondering if I'll need to order some deer sinew as well.  Any input would be appreciated.

thanks.
Title: Re: Not sure if I have the correct sinew to apply to back of bow--please help.
Post by: osage outlaw on July 21, 2012, 02:05:22 am
That looks like a fine piece of back sinew.  I hope you bought more because it will take more than that to back a bow.  You will need to process it down into fibers to put it on a bow.
Title: Re: Not sure if I have the correct sinew to apply to back of bow--please help.
Post by: gstoneberg on July 21, 2012, 02:32:10 am
Where in Texas?  If you're near Dallas swing by my shop and I'll share some sinew with you.

George
Title: Re: Not sure if I have the correct sinew to apply to back of bow--please help.
Post by: dmikeyj on July 21, 2012, 08:35:31 am
Yeah, it doesn't look the same to you yet.  It needs processed, bang it out with a stone or hammer on a hardwood stump.  You will need more than that though.
If you are near George, I'd take him up on that offer.  Good luck.
Title: Re: Not sure if I have the correct sinew to apply to back of bow--please help.
Post by: SLIMBOB on July 21, 2012, 10:25:10 am
You have what appears to be elk "back" sinew.  Very good for making bow strings.  What you want for backing is the "leg" sinew (Achilles tendon).  Each tendon when pounded and separated will simply render more fibers than the back sinew will.  Figure 3 or 4 tendons for a backing.  TBBI has the info you need in it.  I have the leg sinew if you need it.  Let me know and I will send you some if you want it.  Backing a bow is a big task!
Title: Re: Not sure if I have the correct sinew to apply to back of bow--please help.
Post by: Eric Krewson on July 21, 2012, 10:30:32 am
Wrong info Slimbob, back sinew is great for backing a bow, nice long strands once you pound it out, just the same as leg sinew but easier to work with.
Title: Re: Not sure if I have the correct sinew to apply to back of bow--please help.
Post by: SLIMBOB on July 21, 2012, 10:40:13 am
I agree with that Eric.  Much easier to work with.  you just gotta get a lot of them.   It is the same once it is pounded and separated.  I've always used the leg sinew for backing and saved the back sinew for strings, or sewing thread etc. 

Anyway my point to him was, I think the reason he is questioning the sinew is because he has seen leg tendons and not back sinew maybe.
Title: Re: Not sure if I have the correct sinew to apply to back of bow--please help.
Post by: ReconBowyer on July 21, 2012, 11:02:25 am
Thank you very much to everyone who took the time to reply--extremely helpful and I appreciate it. 

You're right, I've only seen the leg tendons and didn't realize what I have.  I do have more of it--I'll process the fibers down and then make a determination on if I have enough.

This is my first time on the site and my first post.  Very cool, I plan on coming back often.

thanks again

--Paul
Title: Re: Not sure if I have the correct sinew to apply to back of bow--please help.
Post by: ReconBowyer on July 21, 2012, 11:05:43 am
George,

I'm in Temple.  Would love to visit your place.  I'm just getting started, but this has been something I've wanted to do for a long time.  Send me a link if you have a site or let me know where to find it.

thanks.


Paul
Title: Re: Not sure if I have the correct sinew to apply to back of bow--please help.
Post by: gstoneberg on July 21, 2012, 11:41:27 am
I'm in Temple.  Would love to visit your place.  I'm just getting started, but this has been something I've wanted to do for a long time.  Send me a link if you have a site or let me know where to find it.

LOL, I don't build bows for a living so I don't have a web site. I had a personal site when I had my web server available on the web, but Verizon wanted too much for the privilege. Just as well, I do enough web work at work.

I come down to Burlington hog hunting a couple times a year. If I get down your way before you get to Dallas I'll give you a shout. Be sure to come by if you get up this way.

George
Title: Re: Not sure if I have the correct sinew to apply to back of bow--please help.
Post by: JW_Halverson on July 21, 2012, 04:11:18 pm
SlimBob, you will hate me!  I only use backstrap sinews for backing bows.  I chop the leg sinews in one inch bits, add distilled water, and make hide glue!!!  Or toss 'em to the dogs.   >:D
Title: Re: Not sure if I have the correct sinew to apply to back of bow--please help.
Post by: Oglala Bowyer on July 22, 2012, 11:49:03 am
Nice back sinew you got there Recon.  All my bows are backed with back sinew.  In fact, I prefer buffalo or elk.  Not knocking leg sinew by any means, its just a personal preference for me.  I use leg sinew for wrapping arrows and fletching.  Process it with your hands.  There is no need to use hammers.  If you had leg sinew than you can go berserk with a hammer, but since it's just back sinew you can twist, pull and process your sinew with your hands. 
Title: Re: Not sure if I have the correct sinew to apply to back of bow--please help.
Post by: ReconBowyer on July 22, 2012, 12:05:47 pm
Okay, after an entire day spent at the table I've got a shoebox full of long, processed fibers.  My fingers hate me.  Thanks again to everyone, if I'm successful I'll post a picture of the finished product.  Or the broken product--whatever gets the most laughs.

thanks again.

Title: Re: Not sure if I have the correct sinew to apply to back of bow--please help.
Post by: crooketarrow on July 22, 2012, 06:51:14 pm
 Thats elk back sinew for sure. Any sinew will work.
Title: Re: Not sure if I have the correct sinew to apply to back of bow--please help.
Post by: blackhawk on July 22, 2012, 08:31:28 pm
If you haven't made any bows yet,or are still learning how to tiller, I then wood save the sinew for backing a bow down the road untill you are efficient at making a bow bend proper.
Title: Re: Not sure if I have the correct sinew to apply to back of bow--please help.
Post by: tipi stuff on August 15, 2012, 06:29:40 pm
      I agree that ReconBowyer is holding back sinew in the photo. My guess is that he was confused by pictures or descriptions relating to the use of leg sinew.  I also agree that back sinew or leg sinew, either one, can be used to back a bow. I have a good friend in Kansas that backs all of his bows with back sinew. Back sinew is defiantly easier to prepare. It doesn’t have to be pounded; just pull it apart. I prefer the leg sinews. They do require a lot of prep, but I like the way they soak up the glue. I also think they lay down much more uniformly. Then I use the outside part, once stripped from the core, to make my glue.  I have heard of people using the back sinew without pulling it apart. I do not personally know anyone who has done this; I’ve just heard that it is done. Have any of you done this with any measure of success? I don’t intend to do it myself; just curious. All of my back sinew is saved for strings and for sewing.
                                                                                                                           CC
Title: Re: Not sure if I have the correct sinew to apply to back of bow--please help.
Post by: Cloudfeather on August 15, 2012, 07:42:33 pm
If anyone is looking for a good source for back or leg sinew at a good price. Check out nativewayonline. They have good prices and their shipping was pretty fast.
Title: Re: Not sure if I have the correct sinew to apply to back of bow--please help.
Post by: Pat B on August 15, 2012, 09:37:06 pm
My most recent bow(last winter) is a 53" sinew backed osage bow with 2 courses of deer back strap sinew. I prefer it over leg sinew because it is easier to lay down evenly and gives a nice relatively smooth surface.
  I just roll the sinew strip back and forth in my hands to break it up then pull it apart into fibers. I think I use 6 back strap sinews total for the bow. This bow is pretty small at only about 1" wide at the handle and 53" long. Pulls 56#@26" during the dry season.  ;)
Title: Re: Not sure if I have the correct sinew to apply to back of bow--please help.
Post by: tom sawyer on August 15, 2012, 10:32:59 pm
I personally like leg tendon sinew better.  I can't get the backstrap sinew to be as soft as the leg tendon stuff.  Its more wiry.  I'm probably just not working it enough.
Title: Re: Not sure if I have the correct sinew to apply to back of bow--please help.
Post by: SLIMBOB on August 15, 2012, 11:08:16 pm
I'm with you Tom.  This is in part what I was driving at when this first popped up.  I have never backed a bow with back sinew.  I know people who do.  There is really in my opinion, one good use for leg sinew, backing bows.  You can make strings but they're weaker than back sinew strings.  Tough to sew with it.  For wrapping feathers, I'd rather pull a few strands of back sinew.  For me, leg sinew is suited for backing bows.  Kinda took an informal pole on this topic among people I know, and it seems to me to be a 50/50 split.