Primitive Archer

Main Discussion Area => Bows => Topic started by: Del the cat on May 15, 2014, 10:13:32 am

Title: Horn Nock Cross Section
Post by: Del the cat on May 15, 2014, 10:13:32 am
I know it's not a bow, but I thought this pic might be of interest. I had this old ELB tip from a smashed bow lying around so I sliced it through the bandsaw to make a little demonstration/show piece. It shows a slight glue filled gap near the tip, but otherwise it's a pretty good fit, also shows how a curved taper fits in and how little horn is left.
Also shows how I cant it a little towards the back of the bow and the core of the horn runs pretty centrally.... great nock... shame the bow blew! >:D
Del
Title: Re: Horn Nock Cross Section
Post by: Hrothgar on May 15, 2014, 10:34:49 am
Half core wood, half sapwood; is that yew Del? (no pun intended)
Title: Re: Horn Nock Cross Section
Post by: Badger on May 15, 2014, 10:38:53 am
  Nice Del, is that about 1" of bow pushed into the nock?
Title: Re: Horn Nock Cross Section
Post by: Del the cat on May 15, 2014, 11:07:33 am
Yes it's me, I mean Yew. :laugh:
Just over 1" into the horn 1 1/16"
Del
Title: Re: Horn Nock Cross Section
Post by: leehongyi on May 15, 2014, 12:18:22 pm
what's the diameter?
Title: Re: Horn Nock Cross Section
Post by: bowtarist on May 15, 2014, 01:04:42 pm
Nice example Dell. Very Nice indeed! dp
Title: Re: Horn Nock Cross Section
Post by: Del the cat on May 15, 2014, 01:33:25 pm
what's the diameter?
0.47" Where the horn starts.
Del
Title: Re: Horn Nock Cross Section
Post by: half eye on May 15, 2014, 04:30:27 pm
I saved the pic....way cool Mr. Cat. 8)  Perhaps you could explain how the hell ya form a hole that shape?
rich
Title: Re: Horn Nock Cross Section
Post by: Del the cat on May 15, 2014, 07:08:49 pm
I use a wood bit ground down to a curved point. As shown here.
http://bowyersdiary.blogspot.co.uk/2013/02/horn-nock-instructional-part-1.html (http://bowyersdiary.blogspot.co.uk/2013/02/horn-nock-instructional-part-1.html)
Del
Title: Re: Horn Nock Cross Section
Post by: half eye on May 15, 2014, 07:33:47 pm
Thank you, sir.
rich
Title: Re: Horn Nock Cross Section
Post by: Marc St Louis on May 15, 2014, 07:43:53 pm
Very nice Dell but you do know you could have removed that nock from the bow right?  :)
Title: Re: Horn Nock Cross Section
Post by: Del the cat on May 16, 2014, 04:15:54 am
Very nice Dell but you do know you could have removed that nock from the bow right?  :)
I figured that being epoxied on it would be too much trouble, and if I got it hot enough it would probably deform or collapse. I'm pretty quick and slick at makin' them now anyway. I even enjoy it! When I did my first ones it was a real pain and I hated it!
If you have a way of popping them off I'd be interest to know tho'
Del
(I lied about being pretty >:D )
Title: Re: Horn Nock Cross Section
Post by: burn em up chuck on May 16, 2014, 12:23:11 pm
  do tell marc, i hope it wouldn't be inconvenient to show pictures?

                                                     chuck
Title: Re: Horn Nock Cross Section
Post by: Marc St Louis on May 16, 2014, 12:54:37 pm
All you need is heat Dell and they are serviceable after, you just have to be careful how you apply the heat.  If you get them too hot though they start to turn color and that's not so good.  I've always just used a heat-gun but I wonder if boiling them might not work.
Title: Re: Horn Nock Cross Section
Post by: PatM on May 16, 2014, 01:18:54 pm
Or you could just drill out the wood with the same bit....
Title: Re: Horn Nock Cross Section
Post by: Don Case on May 16, 2014, 09:48:15 pm
Ha!!! I'd hate to count how many engine parts I've ruined trying to drill out broken studs. :-[ :-[ Unless horn is a lot harder than yew I would mess that up big time.
Title: Re: Horn Nock Cross Section
Post by: PatM on May 16, 2014, 09:56:49 pm
Pilot hole with small drill bit and then progress to the actual shaped bore.
Title: Re: Horn Nock Cross Section
Post by: Don Case on May 16, 2014, 09:59:02 pm
It was getting the pilot hole in the center. I think I have two left eyes, and I'm right eye dominant ;)
Title: Re: Horn Nock Cross Section
Post by: toomanyknots on May 16, 2014, 10:47:11 pm
I've drilled on a horn that was filled with wood a couple times, worked out fine. The drill bit broke up the wood pretty easy. COOOLL pic Del! That's something you could use in a book or something. Very cool! I have gotten pretty crazy with my drill bit nowadays. I sharpen the edges like a knife, I go from wet stone, to leather strop with a bit of polish, back to the wet stone, then back to the strop, etc. After I am done, I take my carbide thingy I use to roll the edges of my scraper, and roll the sharpened edges just like a scraper. After that, it tears through the horn like crazy. :) It makes lots of shavings instead of the dust it used to before I used to roll the edges.