Trad Gang

Main Boards => The Bowyer's Bench => Topic started by: K. Mogensen on July 27, 2018, 09:29:09 PM

Title: How feasible is this?
Post by: K. Mogensen on July 27, 2018, 09:29:09 PM
Hi,

So I'm curious, if someone wanted to build a laminated glass bow, what are the chances that they'd have success on their first try?

It's something that I would like to try at some point, but I don't have unlimited rack space, and would want to build a bow that I actually want to shoot (using materials and a design that I pick, vs. what Bingham's picks). I have most of the equipment I'd need to get by, and I work daily with composites and have experience using epoxies.

FWIW, I'd be looking at something like a reflexed Hill style, which I'd imagine would be a bit easier to begin with than something like a recurve.
Title: Re: How feasible is this?
Post by: Pat B on July 27, 2018, 10:08:17 PM
I only built one glass bow and it failed. Getting the fade tapers perfectly straight and feathered into nothing is critical. I know this for a fact!  :knothead: Next is having a true form and correct clamping pressure. Other than that your chances are excellent.  ;)
Title: Re: How feasible is this?
Post by: Bvas on July 27, 2018, 10:30:45 PM
I’d say if you did lots of reading/research and are competent in a wood shop, your chances are pretty good.

If you hang out here and ask lots of questions, your chances are excellent.
Title: Re: How feasible is this?
Post by: Mark Smeltzer on July 27, 2018, 10:41:32 PM
Depends completely on you and the amount of patience you have and the amount of home work you're willing to do before you begin. As far as hitting your wight goes, you'll want to have some stack ht. information from someone for that design or you will miss your weight almost for sure.
Title: Re: How feasible is this?
Post by: monterey on July 27, 2018, 11:29:09 PM
I'm still shooting my first bow built in 1992.  Ugliest bow you ever saw. :) I started with a Bingham design and glad I did.  Bingham is adamant about the first timer avoiding also being a first time designer and it's good advice.
Title: Re: How feasible is this?
Post by: fujimo on July 28, 2018, 12:59:13 AM
my advice would be, DONT try and "design" your own bow- for starters. i know so many folk that want to be "bow designers" and that usually leads to failure>
get a tried and tested design, get the stack height, follow kennys advice on building a form. and you will be fine.
 ask lots of questions on here and you will be better than fine.
alternatively, get a pre made blank from kenny, do all the tips, overlays and riser shaping, that will give you a good taste for it.
problem with glass bows, is one gose to a lot of effort and expense to build a form, then to use it only once would be a crying shame .
 Kenny also sells  pre made forms.

or find someone close with forms etc, and go over and build a bow on their form, most bowyers are good like that.
Title: Re: How feasible is this?
Post by: Roy from Pa on July 28, 2018, 05:07:44 AM
Kennym will be along shortly.

Call and talk to him.

He will help you and can supply all the materials you need.

Kenny has top shelf material.

https://www.kennysarchery.com/
Title: Re: How feasible is this?
Post by: Forwardhandle on July 28, 2018, 05:42:19 AM
I came here from making natural material bows with no exsperience with glass , and made my first successful bow that turned out perfect weight & tiller , here was my recipe ,I called Kennym got a copy of his prints & templete , read every book on glass bow making I could , asked the guys here tons of questions , they where probably rolling there eyes great another newbie... Lol, but they all answered with enthusiasm , I meticulously precisely made my form (key in making a glass bow) called Kennym mornings & nights asking more dumb questions.... Lol & he graciously answered at this point he was probably sorry he sold me the materials  & probably still is  :laugh: when making your first it's hard enough to do with some body else's design there is a fair learning curve over natural material bows & having the guy that designed the bow answer your questions puts you light years a head of the curve , if you do the above suggestions I would say 99% chance of success ! But the best part of making your first here is I feel like I got a new family of friends too !
Title: Re: How feasible is this?
Post by: Crooked Stic on July 28, 2018, 07:07:43 AM
Yeah Kenny da' man.
Title: Re: How feasible is this?
Post by: K. Mogensen on July 28, 2018, 10:04:32 AM
Thank you all for the suggestions.

I think finding a blank that is close to what I'm looking for is the way to go. It would be a bit of a waste to go through the trouble of building a form and hot box to only use once.

I like the idea of building lots of bows but just don't have the space right now.
Title: Re: How feasible is this?
Post by: Forwardhandle on July 28, 2018, 10:36:48 AM
The blank is a really good way to go I did one of Kennys blanks at the same time I was building my bow and I learned a lot doing it that way , but my guess is you will get hooked and be building more  :) [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]
Title: Re: How feasible is this?
Post by: Dazzad on July 28, 2018, 10:42:09 AM
You mention the idea of a reflexed HH, why not for a start, build a straight laid HH? The upside is that the 'form' need be no more sophisticated than a straight piece of timber 72"long by 1.5"wide. In terms of tools, you could manage with as little as a dozen or so clamps, a hacksaw, a couple of files and rasps, and a bunch of sandpaper.

What can't be scrimped on is research and preparation, but as we all have access to this forum and the internet as a whole - all the info and advice you need is at your fingertips.
The above is the list of the resources I had at hand for my first four laminate bow builds. Each and every one turned out beautifully, shot fantastic, and all are still in use today!

If you are thorough and methodical - a simple, beautiful and sweet shooting HH straight-laid longbow is entirely achievable!!!!!
Title: Re: How feasible is this?
Post by: KenH on July 28, 2018, 01:17:55 PM
I think Dazzad has your best solution -- build a straight HH.  Much simpler in terms of jig, tools, etc.  You DO NOT NEED a Hot Box, just a warm day above 72F.  Your jig can be a flat, straight, 2x4.  You can use a combination of clamps and innertube bands for clamping, and minimal hand tools to make a really nice, sweet shooting first bow.
Title: Re: How feasible is this?
Post by: Shredd on July 28, 2018, 05:18:50 PM
Don't listen to these guys...  What you want is to copy the Border hex 8 bow...  It should be a breeze to make...   :thumbsup:
Title: Re: How feasible is this?
Post by: Forwardhandle on July 28, 2018, 05:49:41 PM
I wouldnt let making the form detour you the last topless form I made cost me $60 and 6-7 hrs to make You can use clear dimensional lumber probably could have done it cheaper but used Maple !
Title: Re: How feasible is this?
Post by: C. Johnson on July 29, 2018, 10:48:03 AM
I'm still shooting my first bow built in 1992.  Ugliest bow you ever saw. :) I started with a Bingham design and glad I did.  Bingham is adamant about the first timer avoiding also being a first time designer and it's good advice.

You cannot go wrong with a kit bow from Bingham's.  I built my first one in 1996 and it still shoots today.  Start with a flat longbow.  Very easy to build.  My first two were built with mostly hand tools when I was a young guy living in an apartment!

Also, Kenny can get you squared away for sure with materials, forms, and how to information.

My advice is to not try to get too fancy on your first one.  Once you build one, the addiction takes hold and you'll want to build more.  As you gain experience you'll try more complex designs.
Title: Re: How feasible is this?
Post by: Forwardhandle on July 29, 2018, 12:46:32 PM
I don't think I would have enough years left to iron out a copy of the Hex 8 or High lander 6.5 but it is a wicked design ,I wish some body here would do the R&D on it then I would build it ! :goldtooth:
Title: Re: How feasible is this?
Post by: monterey on July 29, 2018, 01:08:53 PM
What Craig said!

The flat 68" Bingham design is a good bow.  You don't need to buy their kit.  Go to the Bingham website and download their bow weight chart.  Use it to settle on the stack and order the stuff from Kenny.  Bingham is happy to help you out but they are maybe a little too big to spend the time with you.

Everyone here will be happy to guide you along the way.
Title: Re: How feasible is this?
Post by: Shredd on July 29, 2018, 02:07:18 PM
I don't think I would have enough years left to iron out a copy of the Hex 8 or High lander 6.5 but it is a wicked design ,I wish some body here would do the R&D on it then I would build it ! :goldtooth:

Right now I have my hands full with a simple R/D design... Lol...  At the rate that I am going it may be a while before I even consider to build a recurve...
Title: Re: How feasible is this?
Post by: EwokArcher on July 29, 2018, 02:37:15 PM
I like yello wood got started with self bows. But the swap to glass was pretty easy with a binghams recurves kit. If you want to go simple with minimal investment go with a straight long bow. Use a 2x4 for the form and rubber band that bad boy. Skip the air hoses and hot box you'll have a good bow pretty simply with minimal investment. If you dig the process then try rounding off the ends of your 2x4 to give yourself some reflex. When I try a new design I plan on the first one being a proto type to help me figure out the exact thickness needed to get draw weight and work out kinks using cheap black glass. After you know what you are doing you can get fancy with less risk.
Title: Re: How feasible is this?
Post by: kennym on July 29, 2018, 05:35:29 PM
Give a shout if I can help! I'm seeing a lot more guys doing the topless form.  Using dowels with the air hose strapped down with rope or mule tape then inflating.

This would simplify the form deal and I'm going to try it (again) .

That said, the easiest glass bow to lay up the first time would be a straight hill style bow.

Good luck and above all, keep it fun!!
Title: Re: How feasible is this?
Post by: K. Mogensen on July 29, 2018, 08:34:16 PM
Hey thanks everybody for the advice.

I think maybe I will give this a go, although it'll be a long process. I'm going to start with some reading and see what I come up with. I have a lot of projects on the burner right now, and I mostly wanted to know whether I was wasting my time even thinking about trying this.

I will definitely go with a topless mold and innertubes. I can definitely forego the reflex too in order to simplify the build.

Now the real root of why I wanted to try this in the first place, is that I'd like to try phenolic in the riser of a hill style bow. Is that asking for trouble in a first build? I know it's hard in tools.

Thanks again.
Title: Re: How feasible is this?
Post by: pditto613 on July 29, 2018, 09:38:39 PM
Do yourself a favor and get Binghams 68” longbow plans.  There are a lot things that a first timer will question that the plans will answer.  Shelf placement, handle design limb taper and so forth.   They spell it out pretty good.  I have one from 8 years ago I am still shooting.  Nothing is quieter
Title: Re: How feasible is this?
Post by: Mark Smeltzer on July 29, 2018, 11:28:30 PM
Phenolic or many other similar materials will work great! There is more than one type of phenolic too I think.

Title: Re: How feasible is this?
Post by: Mark Smeltzer on July 29, 2018, 11:33:54 PM
I know Elmont from Bingams Supply. I live right down the road so I just go in and get what I need. I think he would be happy to help you in any way he can.  If you ever go in there and walk into the shop and touch a freshly ground laminiate with your bare hands......he will jump your $&$!  :dunno: dont ask how I know this.. :)
Title: Re: How feasible is this?
Post by: Forwardhandle on July 30, 2018, 04:51:14 AM
Time wise these bows go pretty quick I only have about 1 hour at a time here & there on my summer builds I would bet you could build a real nice strait form dead square in under 2 hrs , the devil is in the details , ask a lot of questions and you will be fine ,Kenny is a early riser so if your up say 3:00 am give him a call  :coffee: :scared:
Title: Re: How feasible is this?
Post by: kennym on July 30, 2018, 07:48:08 AM
3  AM is my busy time , usually sawing logs then...   :biglaugh:
Title: Re: How feasible is this?
Post by: fujimo on July 30, 2018, 09:12:33 AM
 :laughing: :laughing:
Title: Re: How feasible is this?
Post by: Roy from Pa on July 30, 2018, 12:25:56 PM
I called Kenny very early one morning.

We had our phones on video conference..

Y'all otta see his sweet little donald duck jammies...

 :laughing: :laughing:
Title: Re: How feasible is this?
Post by: Forwardhandle on July 30, 2018, 12:49:34 PM
I can't go there can't even let my mind wonder on that one  :dunno: :laughing: