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Main Boards => The Bowyer's Bench => Topic started by: monterey on August 11, 2017, 02:24:00 PM
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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).
(http://i.imgur.com/dNbd9Mo.jpg)
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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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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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Yep, what they said^
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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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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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mine usually sit about a 1/8"high with the spring back. Totally normally for me
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All my glass bows did that....
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Lesson: don't copy other people's designs... :D
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Montyboy, get the grand kids to help ya... :)
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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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Originally posted by Overspined:
Lesson: don't copy other people's designs... :D
All modern bows are copied, just tweaked out to someone else's theory!! :D
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Originally posted by kennym:
Originally posted by Overspined:
Lesson: don't copy other people's designs... :D
All modern bows are copied, just tweaked out to someone else's theory!! :D [/b]
Maybe there should be a bowyers creed.
This is my bow. There are many like it. But this one is mine. :D
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LOL
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A little more head scratching :)
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.