Primitive Archer

Main Discussion Area => Bows => Topic started by: willie on December 19, 2016, 01:03:18 pm

Title: thinning vs narrowing vs piking
Post by: willie on December 19, 2016, 01:03:18 pm
In a nearby thread, a forum member advocated piking (as well as side narrowing, and of course thickness thinning) as a way to bring a bow to its desired finished tiller.

Just curious how many here use piking as a working method on a regular basis, as I have read pros and cons, and sometimes see piking mentioned as "less than optimum fix"
Title: Re: thinning vs narrowing vs piking
Post by: Pat B on December 19, 2016, 01:15:38 pm
I've only piked a few bows over the years. I don't consider it regular tillering method. I do reduce the thickness as my prefered tillering method and narrow on some occasions when I think a limb is getting too thin.
Title: Re: thinning vs narrowing vs piking
Post by: Del the cat on December 19, 2016, 01:18:48 pm
Nothing wrong with taking an inch (2 max) of each tip occasionally, as long as you allowed an inch extra in the first place!
Del
Title: Re: thinning vs narrowing vs piking
Post by: bradsmith2010 on December 19, 2016, 02:11:04 pm
it really depends on the situation, but if it is called for then I use it,,
Title: Re: thinning vs narrowing vs piking
Post by: PEARL DRUMS on December 19, 2016, 03:00:28 pm
I'll take a thicker/narrow limb over a wide/thin limb anytime I can. 
Title: Re: thinning vs narrowing vs piking
Post by: wizardgoat on December 19, 2016, 03:06:27 pm
I do my best to read a piece of wood to determine width and length based on what design I'm after.
I pretty much never touch the width or length after that. Carefully and slowly tillering bows on a pulley system with a scale ensures that I hardly ever come in under weight. If I do, I'm more prone to grabbing a new piece of wood.
Title: Re: thinning vs narrowing vs piking
Post by: George Tsoukalas on December 19, 2016, 03:12:32 pm
I don't pike and do thin if the limb is not responding to thickness taper. Jawge
Title: Re: thinning vs narrowing vs piking
Post by: Dictionary on December 19, 2016, 03:38:35 pm
Piking is a last resort means of achieving weight if the bow came out too light. However, I tend to leave my bows a few inches longer than my desired bow length in case I come out too light.
Title: Re: thinning vs narrowing vs piking
Post by: bradsmith2010 on December 19, 2016, 05:23:15 pm
its not just about coming in to light,, if the bow is shocky or slow,, maybe the design is a bit off, or the mass too much,,
reducing the length can sometimes make is shoot alot better,, increase performance to draw weight and make it shoot a bit smoother,,,, example one time I wanted to make a really long long bow,, so I did, wow it was a dog,, I cut the tips off and re tillered,, it shot much better,, when I weighed the tips I had cut off is was obvios why that length had not worked,, :)
Title: Re: thinning vs narrowing vs piking
Post by: Selfbowman on December 19, 2016, 09:26:16 pm
I'm with Pearl on this one. Also like Bradsmith comment .   
Arvin
Title: Re: thinning vs narrowing vs piking
Post by: mikekeswick on December 20, 2016, 04:23:25 am
its not just about coming in to light,, if the bow is shocky or slow,, maybe the design is a bit off, or the mass too much,,
reducing the length can sometimes make is shoot alot better,, increase performance to draw weight and make it shoot a bit smoother,,,, example one time I wanted to make a really long long bow,, so I did, wow it was a dog,, I cut the tips off and re tillered,, it shot much better,, when I weighed the tips I had cut off is was obvios why that length had not worked,, :)

Long, long bow or not if it shot like a dog the tiller was incorrect. Making it shorter worked this time probably because your new tiller was correct for the shorter bow. A long, long, long bow (eg longer than it needs to be)  needs to be tillered elliptically.
Title: Re: thinning vs narrowing vs piking
Post by: Pappy on December 20, 2016, 05:58:15 am
I pike in pinch  ;) :) but usually do like Wizard said, start out with what I think the wood needs and most time don't stray from that much, if I happen to miss weight I will take a little off if the length if it will handle the draw length I am going for , if not ,turn it into a kids or ladies bow ,maybe a little narrowing  the with at the very end of the tillering ,but mostly thickness tapper. :)
 Pappy
Title: Re: thinning vs narrowing vs piking
Post by: BowEd on December 20, 2016, 07:30:25 am
To me it's about being familiar with your woods' strengths and weaknesses for design and length as far as stress goes and part of the never ending adventure of bow making.Over all mostly thickness taper is done.Some narrowing too but mostly on the outer thirds of the limbs.All this done monitoring as you tiller seeing what the wood responds to.
Piking is done in most cases I see as a last resort provided the design and width can handle it.If not it's a woman's or kids bow.
Title: Re: thinning vs narrowing vs piking
Post by: willie on December 20, 2016, 12:06:27 pm
Lots of good input here, thanks guys. I actually thought that I would hear more "shouldn'ts", but it seems that most are willing to "pike in a pinch".
Beadman brings up a good point, about being familiar with your woods' strengths and weaknesses, that was along the lines of my reasons for asking the question. I will soon be working with a wood that I am not familiar with, and had a thought to build the first bow somewhat long and underweight/overbuilt. Piking might be a way bring the bow to its finish set/strain, after full draw has been reached.

Of course, once the material is worked into  a few bows, "I do my best to read a piece of wood to determine width and length based on what design I'm after." seems to be the easier approach.

MikeKeswick --  It was your comment in the hackberry thread that got me wondering about this approach for "new wood"

 
Quote
You can use any design but the key is starting width enough/long enough then side tiller,reduce length as you go. Watching the set is key. A Pyramid is normally where I start with a new wood because they are easy to keep strained evenly.

 

Title: Re: thinning vs narrowing vs piking
Post by: bradsmith2010 on December 20, 2016, 01:20:29 pm
you are right, it was not tillered correctly for length,, cutting it shorter let me tiller more correctly with out loosing too much weight,, :)
Title: Re: thinning vs narrowing vs piking
Post by: George Tsoukalas on December 20, 2016, 02:10:01 pm
I think the important thing is to let the stave determine the design.

For example, I'm working on a character hickory stave.I wanted to make a bend in the handle type bow where the handle was the widest point. I wanted the bow to be about 1 1/8" wide.

However, to track the string better, I figured I had to make a handle bow and leave the handle wide until I strung it and so it is.

Jawge