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4est- That's exactly what I was thinking about, thanks so much for the pics! I had completely forgotten about that bow until you posted those pics, now I remember you posting those a few months ago. It looks like it has some osage in there as well? Absolutely georgous!
-------------------- ~Varitas Vos Liberabit~ John 8:32 ~Genesis 27:3~ Of all the things I've lost, I miss my mind the most. Posts: 2867 | From: Missouri | Registered: Aug 2010
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I have a bunch of slats and a torch. I'll set up outside and burn one before finish planing. I found that if you heat bamboo it cups towards the heat, so you have to plane it again anyway. I think I'll try 1/8" back and belly and taper both to 1/16" and add a tip wedge. Are two 1/8" slats enough to get a reasonable draw weight? Or should I add someting else. A bamboo power lam? My appologies to Semo-Hunter. I seem to have hijacked your thread. Dave.
Posts: 802 | From: Canada | Registered: Jul 2011
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Mike at Pine Hollow may have some good info, He had some like that at Kalamazoo in January
Posts: 199 | From: Michigan | Registered: Feb 2010
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Not at all Dave, I'm really starting to get my creative juices flowing again with all this talk about bamboo bows. I've been out to the garage no less than half dz. times staring up into the rafters at my boo backings to see which pair would yield the draw wt. that I'm looking for.
Also eyeballing my osage I have on hand and see if I could saw a nice piece out to plane down for a core lam. Sure wish I had the correct tools for the job, but poor men have poor ways and I always seem to find a way to get it whittled out.
-------------------- ~Varitas Vos Liberabit~ John 8:32 ~Genesis 27:3~ Of all the things I've lost, I miss my mind the most. Posts: 2867 | From: Missouri | Registered: Aug 2010
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You can build a fine shooter by using just two pieces of boo Chris. Stagger the nodes, and heat temper the belly (before glue-up). Add a tip wedge to beef that area up and plan on around 1/2" limb thickness at mid-limb. 1 1/4" to 1 1/2" limb width depending on length. Good luck..........Art
Posts: 1466 | From: Lansing, WVa | Registered: Jan 2006
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I'll have to check on the width of my boo, but after flattening out nice and flat on the bottom of the slats, those dimensions shouldn't be a problem. I kinda figured to keep it at least 1 1/4" wide at the fades out about 12" or so then straight taper to the tip from there, sound about right? Thanks for the tips Art.
-------------------- ~Varitas Vos Liberabit~ John 8:32 ~Genesis 27:3~ Of all the things I've lost, I miss my mind the most. Posts: 2867 | From: Missouri | Registered: Aug 2010
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What about the thickness of the two lams? I keep getting the feeling that two 1/8" lams might result in a low poundage bow. Dave.
Posts: 802 | From: Canada | Registered: Jul 2011
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Art said, "and plan on around 1/2" limb thickness at mid-limb"
So I'm guessing that 1/4" thickness on each slat without a belly core. I'm actually thinking about maybe an osage core if I can thin one down without it breaking and maybe going with about .040 on that? May have to plane it in 2 sections though?
Trying to taper the boo slats toward the tips is what's got me bumfuzzled. I don't have any way to do that yet.
-------------------- ~Varitas Vos Liberabit~ John 8:32 ~Genesis 27:3~ Of all the things I've lost, I miss my mind the most. Posts: 2867 | From: Missouri | Registered: Aug 2010
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It certainly would look nice with an accent up the middle. I have cherry, walnut and jatoba that I could use. I'm not sure if I can get it that thin though. I don't have a drum sander and My planer might eat the wood if I went below 1/8". So, how does a 3/16" back, 1/8" core of hardwood and a 1/8" belly lam sound? Maybe add a thin power lam to beef up the middle? And tip wedges. Dave.
Posts: 802 | From: Canada | Registered: Jul 2011
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Not all bamboo but i am just finishing an bamboo back and belly bow with 3 lams of osage in the middle. These are fast becoming my favorite bows.
-------------------- Ken Allen Posts: 60 | From: Ohio | Registered: Aug 2004
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quote:Originally posted by Ken Allen: Not all bamboo but i am just finishing an bamboo back and belly bow with 3 lams of osage in the middle. These are fast becoming my favorite bows.
Ken - would you mind sharing some particulars with us? Like width, length, and thickness of the lams including the back and belly thickness of the boo lams? I'm seriously going to persue this and I think Wood Carver is also very interested, so any help would be much appreciated and may save quite a bit of time on the trial and error. Not to mention material waste. Any pics would be great as well. Thank you in advance.
-------------------- ~Varitas Vos Liberabit~ John 8:32 ~Genesis 27:3~ Of all the things I've lost, I miss my mind the most. Posts: 2867 | From: Missouri | Registered: Aug 2010
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quote:Originally posted by wood carver 2: It certainly would look nice with an accent up the middle. I have cherry, walnut and jatoba that I could use. I'm not sure if I can get it that thin though. I don't have a drum sander and My planer might eat the wood if I went below 1/8". So, how does a 3/16" back, 1/8" core of hardwood and a 1/8" belly lam sound? Maybe add a thin power lam to beef up the middle? And tip wedges. Dave.
That would add up to nearly 1/2" total thickness depending on the core lam thickness, and based on what I've already built in BBO's most of mine were right at 50# and total thickness mid limb were right at 1/2" or just a tad bit more. I'd say that should be in the ball park of what your looking for. I like to keep mine between 50-55# tops, but then different woods and different combos of woods together will determine the poundage also even if the thickness is different. I'd say the first one would be an educated guess at best, then we'd have a good idea what was needed to hit target wt. on each build thereafter.
-------------------- ~Varitas Vos Liberabit~ John 8:32 ~Genesis 27:3~ Of all the things I've lost, I miss my mind the most. Posts: 2867 | From: Missouri | Registered: Aug 2010
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Don't know if this counts or not, but my Dad and I are building one this weekend using only boo. But no nodes on the belly. Will post pics when she's done.
-------------------- I learned "Semper Fi" as a Marine, and have lived it every day since. Posts: 114 | From: Minnesota | Registered: Jan 2012
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I just got done reading through that link VB and what an awesome build. That young guy used way less tools than I have for his BBB build and still made a great looking bow. I guess that I don't have anything to complain about do I? Maybe he's just short and skinny for his age, but Nick looked like he was about 14yrs. old back in 2009.
Just goes to show that you don't necessarily have to be an old dawg to know something, huh?
Thanks for the link it was a great help and I've got it saved in my favorites!
-------------------- ~Varitas Vos Liberabit~ John 8:32 ~Genesis 27:3~ Of all the things I've lost, I miss my mind the most. Posts: 2867 | From: Missouri | Registered: Aug 2010
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