Trad Gang
Main Boards => The Bowyer's Bench => Topic started by: John Malone on April 24, 2018, 10:08:42 PM
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All hickory trilam, 66 inches. 3/4 wide handle 4 inch flares 1 1/4 for 6 inches taper to half inch tips.
looks awful mean for some reason.
(https://i.imgur.com/RWEzJuJl.jpg)
(https://i.imgur.com/3G0bmnpl.jpg)
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That will be fun to tiller. :help:
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Pat I used Roy's specs for lam thickness, front profile lay out, and the form post height and placement.. It should almost tiller itself. The only difference between this one and the boo backed lemon wood I made is the center post is an inch higher, which is what it was supposed to be anyway. Again, specs from Ole Roy.
Should be pretty sweet, this or the maple I got will end up my swap bow, whichever come out better.
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Oh by the way, the core and belly wood lams are a couple inches longer than the back, ill cut them off later. Makes it look more extreme than it is I guess.
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Question fellows, would it do any good to toast the core and belly lams before I glue them up?
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The outer limbs look pretty straight with most of the reflex happening at the midlimb post. Are any of the lams tapered? If so, how much?
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John said:
Oh by the way, the core and belly wood lams are a couple inches longer than the back, ill cut them off later. Makes it look more extreme than it is I guess.
I don't see a darn thing wrong with it.
Same specs on these 3 pictures.
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Bowjunkie, I leave the core and belly lams long (73 inches) and cut them after glue up, use em for tip overlays.
The core is tapered.235 (15/64)to .95(3/33)
Back is parallel 1/8.
Belly is parallel .290 or 9/32nds. A tad over the recommended 1/4 inch.
End post on form are 5 inches, center post is 4 3/4, mid post are 2 3/4 and are place midway of limbs as measured from end of fade to tip.
I got all these ideas from Roy, if the darn thing was about to blow up he wouldn't say a thing. :thumbsup:
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Well I am north of the mason dixon line:)
:laughing:
:thumbsup:
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I knew it! That's why Roy gets more deflex than me....2" is a lot of deflex.
Your core is almost tapered 0.004"/inch. Not that that's a bad thing, just saying.
I think at that thickness or stack, 0.65" total, you will have some wood to remove unless you are going for a heavy bow. Be careful around that deflex spot midlimb. Like Bowjunkie is mentioning, most of your bend is happening right at that deflex post. It makes tillering in that area difficult. I like to add a clamp between the deflex post and the reflex post to even that bend out to the tips.
This one ended up making a bow, but it took a lot of set and was a nightmare to tiller....lesson learned.
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Yep Mr. Ben, your bow would be a nightmare, cause ya clamped it up wrong.
Johns will be a pleasure to tiller.
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I don't understand why yours looks that way BMorv?
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Roy, that's the Manson Nixon line not Mason Dixon.
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Because all of the bend is happening right at the deflex post....This is how I do it now. Makes the transition smoother and easier to tiller.
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Your deflex post isn't doing anything for deflex.
There is no deflex in that bow.
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Yeah, that was one of my 1st tri lams. After that on subsequent builds I kept inching my mid limb post closer to the center to get more deflex.
It would have helped me figure it out sooner if you had told me your mid limb and center post are 2" different! I guess I'm too far south of the mason dixon to get the inside scoop... :dunno:
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Edit: I thought you were talking about my second picture. That bow that I posted 1st was something I tried on my own before I ever started looking into tri lams. It was just an extreme example of what no bend after the deflex post looks like and the problems it can cause.
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No problem Mr. Ben.
I can't believe a North Carolina guy got it and a Louisiana guy didn't? :laughing:
Now ya know:)
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I gotcha Ben. I'm going for #45-50. I don't get the taper formulas. .004? per inch? I don't do decimals either, I speak fractions.
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Don't feel bad Ben, he gave me the wrong specs the first time. Ya know how old people get with their memory and stuff.
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I don't remember that..
LOL :laughing:
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Because all of the bend is happening right at the deflex post....This is how I do it now. Makes the transition smoother and easier to tiller.
I used to do that, and it works pretty well. then I wised up and made one of these after I decided I was done tinkering with the amount of reflex and deflex.
[ You are not allowed to view attachments ]
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Nice Jamie..
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I like that Miller, think ill borrow that idea.
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You kin start maken gwass bows then, Johnny...
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Silly bowyer, glass is for beer bottles.
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John, hickory lends itself well to heat treating but only the belly. If you have already glued it up it's probably too late though.
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Thanks Pat, I wasn't sure so I only heated the belly side, not on the glue up side though.
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John, with what you are building, I would not even worry about heat treating the belly.
I never have heat treated the belly on any of my trilam builds or any of my builds.
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Well guys she came out perfect, cant remember the measurements for the R/D. You have to look real close and in a couple spots you can see the belly/core and tell its a trilam. They were two slices from the same board.
I had a two foot piece from that board I steamed to fit as a 12 inch riser. Reason being I like the idea and feel of a pistol grip but didn't want that carved riser look. This will effect hand placement, if it don't work ill glue in a thin piece and make it a straight handle bow.
(https://i.imgur.com/VTmfvVdl.jpg)
(https://i.imgur.com/pMV2jKKl.jpg)
(https://i.imgur.com/kVRLl0ll.jpg)
(https://i.imgur.com/CbIUbjal.jpg)
(https://i.imgur.com/WH8v30Gl.jpg)
(https://i.imgur.com/FW7Wh91l.jpg)
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Go for it dude...
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Roy, I can picture you telling a kid that when he ask if its safe to piss on that electric fence.
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Been there done that..
:laughing:
Sent grandson home with night crawlers in his pocket too:)
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Little better pic.
(https://i.imgur.com/eU9L1Kol.jpg)
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You gotta be joking me...
That is disgusting.
That is gonna blow up on dah tree....
Can't you follow a Yankees instructions?
LOL..............
Johnny, that looks Perfect brother.....
Just awesome dude...
And it is balanced perfect on the center post...
^5
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Don't say the B word Roy!
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B WORD.....
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B@%W UP
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Send it to me.
Ya got my address..
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Blow Up, don't say it ya gonna jinx me. You talking to jack again?
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Morning Johnny.
:wavey:
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Good morning Roy.
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Well got the handle on and cleaned her up good. Need to put a better ski slope on the riser, its not as abrupt as it appears in the pic. I think she's beautiful, but that don't matter if she wont hunt. Start tillering tomorrow.
BMorv you were right, its stiff, probably a hundred pounds hell I don't know.
That handle doesn't look like I thought it would but it feels good, my hand naturally goes to just the right spot, middle finger dead center of the bow.
(https://i.imgur.com/aUwwkftl.jpg)
(https://i.imgur.com/JJZ9B0zl.jpg)
(https://i.imgur.com/1pbG5TLl.jpg)
(https://i.imgur.com/leTVNdil.jpg)
(https://i.imgur.com/vlccxDHl.jpg)
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Yeah it looks good. Just take it slow and try your best to remove wood evenly from the entire limb until you start to get some movement. You don’t want to mess up your taper that you worked so hard to get pre glue up.
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That's what I was thinking. :banghead:
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I'm assuming I should treat this like any piece of hickory. Had a lot of t-storms lately, humidity is high. I bring it in at night but I should probably make sure its good and dry before I seal it and start tillering, that sound right.
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I wouldn't seal it.
I would keep it some place that is dry when not working on it.
If you have a heat box, store it in there with a low watt light bulb.
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I got a heat tent that I put it in when the unibond is drying, in this weather stays about 90 degrees.
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That works.
Or maybe a tad lower temp.
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Aggressive and curvy, what more could you ask for? Except not to blow up on ya!! :laughing:
You guys have skills and patience!! :thumbsup:
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Aggressive and curvy, what more could you ask for? Except not to blow up on ya!! :laughing:
You guys have skills and patience!! :thumbsup:
Aggressive, curvy, doesn't blow up, easy on the wallet and can cook. :thumbsup:
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What kinda critter is that John? :biglaugh:
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I think it's called a dream.
:laughing:
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Let's go John...
I'm looking forward to the tiller pictures and your full draw picture...
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Yer across the road in the hen houses, hain't ya boy?
In seen them on google map.
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Yea I was chasing chickens, and cutting grass. Been tillering today. I've put live coons in a sack with less trouble than this. But its getting there. Maybe some pics tonight.
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I knew you'd have fun tillering that beast. :biglaugh:
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Pat, ha ha. I tillered it to death. Gave it to my 2nd cousin whos 8. Our fore fathers didn't make trilams cause their worthless pieces of crap, the ones Roy makes must be photo shopped. I will never make another one!
With that being said gonna make a new post on the proper taper for this thing, I must have screwed it up some how.
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The aggressive reflex is what always screwed me up.
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Yea it was to stiff to start, so I scraped nice and even to not mess up the taper but I must have had the taper wrong some how. By the time I got the outer to bend right it was to light.
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Getting the limbs past the reflex takes a lot of stress and misjudging the tiller on these bows can be maddening at best.
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You don't want the outer 3rd to bend like a 1/4 moon.
They can stay a little bit flat.
Must be your lack of tillering experience.
That and hickory hickory and hickory makes for a heavy bow.
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Roy, ya gonna wear that pic out. :laughing: It is a good one though.
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Lack of experience? Do you know how many weeks I've been doing this! Hell I've got half a dozen successful bows and one of em is a R/D.
Guess not enough huh.
As stiff as it was should've gotten what I wanted out of it, I screwed the pooch basically.
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I screwed the pooch basically
LOL
All these bows are just like I told you to make them.
(http://i.imgur.com/fRtzvwi.jpg) (https://imgur.com/fRtzvwi)
(http://i.imgur.com/gLS9bXI.jpg) (https://imgur.com/gLS9bXI)
(http://i.imgur.com/asR9giH.jpg) (https://imgur.com/asR9giH)
(http://i.imgur.com/dCiHBFM.jpg) (https://imgur.com/dCiHBFM)
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I got one of those on my desk top.