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Author Topic: Is this typical?
monterey
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This is my first bow blank with any real curves to it and I noticed something that has never been evident in my ASL build.

I laid the blank back onto the form and noticed that the blank sprung back from the form an equal amount on each end. Do those of you who build this type of bow often ever notice this?

Here's a pic for clarity (finally got Imgur figgered out).

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Monterey

Posts: 2860 | From: Colorado | Registered: Feb 2008  |  IP: Logged | Report this post to a Moderator
Bvas
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Yep. The bows off my 56/58"form had about 1/4" springback.
The bow off my shorty form which had more curve had almost 1/2".
If you put in the oven, make sure you let the bow cool completely to room temp. I think smooth on recommends 6 hrs.

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Some hunt to survive; some survive to hunt

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Crooked Stic
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Yes there will be spring back. more lams less spring back. I guess a guy could take that into consideration when building the form and compensate with a bit more reflex built into the form.

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High on Archery.

Posts: 3099 | From: Princeton IN. | Registered: Dec 2003  |  IP: Logged | Report this post to a Moderator
kennym
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Yep, what they said^

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Stay sharp, Kenny.

https://www.kennysarchery.com/

Posts: 11838 | From: Linneus , Mo. | Registered: Jan 2004  |  IP: Logged | Report this post to a Moderator
monterey
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So, I'm thinking to take a lesson from this; I one is making a copy of an existing bow and builds the form to an exact fit of the limbs, it's not going to be a copy of the form that the copied bow came off of. Little convoluted, but do ya see what I mean?

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Monterey

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Bvas
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You are correct.
You would have a similar bend, but not an exact match.
Like stic said, you would have to add in a little more reflex to compensate for spring back.

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Some hunt to survive; some survive to hunt

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Krasus
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mine usually sit about a 1/8"high with the spring back. Totally normally for me
Posts: 363 | From: Canada - Vancouver | Registered: Jan 2015  |  IP: Logged | Report this post to a Moderator
Roy from Pa
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All my glass bows did that....
Posts: 11075 | From: PA | Registered: Oct 2006  |  IP: Logged | Report this post to a Moderator
Overspined
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Lesson: don't copy other people's designs... [Big Grin]
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Roy from Pa
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Montyboy, get the grand kids to help ya... [Smile]
Posts: 11075 | From: PA | Registered: Oct 2006  |  IP: Logged | Report this post to a Moderator
monterey
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Didn't copy on this one. Only noticed the spring back afterwards. It is my own design.

Yer right Roy. I need all the help I can get. I have one boy working on this with me but I haven't been posting much cause I'm just getting Imgur figgered out.

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Monterey

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kennym
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quote:
Originally posted by Overspined:
Lesson: don't copy other people's designs... [Big Grin]

All modern bows are copied, just tweaked out to someone else's theory!! [Big Grin]

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Stay sharp, Kenny.

https://www.kennysarchery.com/

Posts: 11838 | From: Linneus , Mo. | Registered: Jan 2004  |  IP: Logged | Report this post to a Moderator
Bvas
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quote:
Originally posted by kennym:
quote:
Originally posted by Overspined:
Lesson: don't copy other people's designs... [Big Grin]

All modern bows are copied, just tweaked out to someone else's theory!! [Big Grin]
Maybe there should be a bowyers creed.
This is my bow. There are many like it. But this one is mine. [Big Grin]

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Some hunt to survive; some survive to hunt

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kennym
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LOL

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Stay sharp, Kenny.

https://www.kennysarchery.com/

Posts: 11838 | From: Linneus , Mo. | Registered: Jan 2004  |  IP: Logged | Report this post to a Moderator
Stagmitis
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A little more head scratching [Smile]
After you finish the bow check your final backset at rest. Now string the bow and shoot it for a while. Unstring it and immediately check the backset. You should notice you have less than when you started. Let the bow rest for a while then check the backset again. It should have gained what it lost. It might be a good idea to account for this as well as springback.

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Stagmitis

Posts: 388 | From: maryland | Registered: Aug 2003  |  IP: Logged | Report this post to a Moderator
   

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