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» Trad Gang.com » Main Forums » The Bowyer's Bench » WOBI blow explosion by yours truly. (Page 2)

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Author Topic: WOBI blow explosion by yours truly.
John Malone
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Thanks Mike, The grain looked ok in this ipe best I can tell, I did notice some swirls as you said, possibly a knot? Another reason I didn't try for lots of flex. But what I did put in was fairly easy.
I don't even know what stack details are, but I got a good idea. After this bow I hope to have a better feel for it. That way I can intentionally get in over my head. lol

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Life is to short to pass up anything that could potentially be bow wood!

Posts: 459 | From: Richmond County North Carolina | Registered: May 2017  |  IP: Logged | Report this post to a Moderator
Roy from Pa
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It will make a bow. Good practice, Johnny.
Posts: 11845 | From: PA | Registered: Oct 2006  |  IP: Logged | Report this post to a Moderator
John Malone
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Its gonna make a kick ass bow, trust me. Or its gonna blow up like bad boob job, well shall see.

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Life is to short to pass up anything that could potentially be bow wood!

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John Malone
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How long to leve that clamped up, used tb2?

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Life is to short to pass up anything that could potentially be bow wood!

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Roy from Pa
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I leave them dry 24 hours. Especially when clamped with reflex.
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John Malone
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That's what I figured. Sounds safe anyhow.

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Life is to short to pass up anything that could potentially be bow wood!

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John Malone
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When you guys say two inches of reflex, is that two inches measured up from the back of bow? Meaning if ya had two inches of reflex the tips would extend two inches higher than the back at the handle.
I went with an inch and a half, but i didnt take the handle into consideration. I did end up with a nice smooth 3/4 though. Live break and learn i guess.

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Life is to short to pass up anything that could potentially be bow wood!

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Pat B
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John, I use a 2x4 block which gives the bow 3 1/2" of reflex at glue up. That usually settles to just over 2" off the form and 1" to flat after shot in.

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Make the most of all that comes and the least of all that goes!
TGMM Family of the Bow

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John Malone
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Gotcha Pat, I was trying to go easy. I was surprised it kept over half. I didn't want to stress it tonight, it just came out of the clamps after 24 hours. Its nice and symmetrical to. I done some scraping, its stiff. 3/4 at the handle, 5/8 mid limb and half an inch at the tips including the backing, she don't bend much.
I run a line 1/8 from edge down the back and 3/16 down the side and rounded the corners.
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Life is to short to pass up anything that could potentially be bow wood!

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mikkekeswick
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At those numbers it will be stiff! Keep checking tiller at full draw weight as you progress.
Use the faceting technique to get the belly round.
ipe can be a pain if you find a pin knot as if it is strained it will chysal there. hopefully you haven't got any hidden pins. Swirly grain is the same because the fibers are hitting the surface at an angle and can't take the compression that straight grain can. Anyway don't stress about it, if you get anymore ipe in the future be super careful about getting straight grained boards.

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John Malone
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Mike, Yea shes stiff all right. Haven't seen any pin knots, there is a swirl or something in one limb. I can feel it when I'm scraping. I don't know, we will se what happens.

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Life is to short to pass up anything that could potentially be bow wood!

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BMorv
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Took a long weekend off for Mardi Gras. Not really my thing but I'll take the 2 days off of work.

Yeah John, looks like you have a lot of ipe to remove. Other than that, looks good.

Once you start bending nicely on floor tiller take a measurement on thickness so you'll be closer on #2. Ipe that thick hates to bend, and hates tension. I've had 3 or so break on me at glue up when trying to r/d it too thick.

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Life is too short to use marginal bow wood

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John Malone
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Brenton, I've been measuring thickness a lot on all my builds for that reason. That way I have a better idea of many bows I can get from a particular piece of wood. Had I know what I was doing could have got two from that stave Pat sent me I believe.

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Life is to short to pass up anything that could potentially be bow wood!

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John Malone
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Well fellows I'm cooking with gas now. #55 @ 3 inches of tip movement, nice even bend. Maybe ill just exercise it up to full draw and have a 130 pound turkey bow.

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Life is to short to pass up anything that could potentially be bow wood!

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BMorv
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I think you are cooking with potassium nitrate, the main ingredient in fireworks, if you keep pulling on that thick ipe.

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Life is too short to use marginal bow wood

Posts: 353 | From: Louisiana | Registered: Apr 2016  |  IP: Logged | Report this post to a Moderator
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