Author Topic: High School Shop Class Longbow Build Along  (Read 4107 times)

Online wolfcoach

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Re: High School Shop Class Longbow Build Along
« Reply #40 on: December 10, 2018, 12:19:04 PM »

Online wolfcoach

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Re: High School Shop Class Longbow Build Along
« Reply #41 on: December 10, 2018, 12:19:27 PM »
Here is the picture of the void under the glass. 


Online Bvas

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Re: High School Shop Class Longbow Build Along
« Reply #42 on: December 10, 2018, 12:35:02 PM »
If I'm seeing correctly, the void is at the shelf?

I would finish shaping the riser first.  Then mix a little osage saw dust with the smooth on and fill.  This will help blend it in a little better.

On future builds.......Scarf joint the lams and super glue them together.  That way they wont separate during glue up.
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Online wolfcoach

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Re: High School Shop Class Longbow Build Along
« Reply #43 on: December 10, 2018, 12:48:50 PM »
Thank you for the advice on the scarf joint and super glue. 

Offline Flem

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Re: High School Shop Class Longbow Build Along
« Reply #44 on: December 11, 2018, 11:23:24 AM »
Can't tell from your picture exactly where the issue is? Looks like the lam that came up over the belly side of the riser, slipped down toward the tip? Can you describe, in detail where the void is, or better yet, post a close up picture.

Online wolfcoach

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Re: High School Shop Class Longbow Build Along
« Reply #45 on: December 11, 2018, 11:33:49 AM »
That is exactly what happened.  I think we will be able to fill it with sawdust and smooth on mixed into a paste. 

Online wolfcoach

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Re: High School Shop Class Longbow Build Along
« Reply #46 on: December 11, 2018, 12:07:53 PM »
First day shaping the limbs. 


Online wolfcoach

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Re: High School Shop Class Longbow Build Along
« Reply #47 on: December 11, 2018, 12:08:20 PM »

Online Roy from Pa

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Re: High School Shop Class Longbow Build Along
« Reply #48 on: December 11, 2018, 01:26:01 PM »
Love it..

 :thumbsup:

Offline canopyboy

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Re: High School Shop Class Longbow Build Along
« Reply #49 on: December 11, 2018, 02:44:20 PM »
This is too cool. Thanks for sharing the progress.

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Online wolfcoach

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Re: High School Shop Class Longbow Build Along
« Reply #50 on: December 11, 2018, 03:05:49 PM »
A few pictures of our progress from today.

Online wolfcoach

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Re: High School Shop Class Longbow Build Along
« Reply #51 on: December 11, 2018, 03:06:16 PM »

Online wolfcoach

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Re: High School Shop Class Longbow Build Along
« Reply #52 on: December 11, 2018, 03:06:37 PM »

Online fujimo

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Re: High School Shop Class Longbow Build Along
« Reply #53 on: December 11, 2018, 05:51:55 PM »
there are a couple of ways to stop the lams and glass from sliding.
1.one i learnt from kenny. glue about a 3/8" sacrificial strip ontop of the riser with a few dots of superglue- that helps the curvature of the  hose from pushing the top lam down past the riser, it may push down past the sacrificial piece,  but not down onto the riser.
2.you can put  endstops at the tip end of the form, when you do your dry run, you trim all the lams and glass to exactly the right length, when you glue up, the end stop will prevent things sliding- kenny also did a cool spring loaded metal dowel end stop, that would adjust to varying stack heights.
Heck- just call ol'Kenny hell set ya straight.... :thumbsup:

Online fujimo

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Re: High School Shop Class Longbow Build Along
« Reply #54 on: December 11, 2018, 05:54:13 PM »
what BVas is referring too- is scarf joining the back lams together to make two 36" lams into one 72" lam.
your original pic did look like the issue was on the back of the riser- but i think that was just a lump of glue or sumpin'

Online wolfcoach

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Re: High School Shop Class Longbow Build Along
« Reply #55 on: December 13, 2018, 12:10:29 PM »
Shaping the grip and riser today.

 

Online wolfcoach

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Re: High School Shop Class Longbow Build Along
« Reply #56 on: December 13, 2018, 12:11:06 PM »

Online Roy from Pa

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Re: High School Shop Class Longbow Build Along
« Reply #57 on: December 13, 2018, 03:51:04 PM »
 :thumbsup:

Offline SteveD

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Re: High School Shop Class Longbow Build Along
« Reply #58 on: December 14, 2018, 05:54:11 AM »
Awesome Looks great

Online Pat B

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Re: High School Shop Class Longbow Build Along
« Reply #59 on: December 14, 2018, 09:54:07 AM »
I'd love to see his face right after his first shot. It's a pretty cool feeling.   :thumbsup:
 I'm so happy to see schools using their heads and allowing bow to be built in Shop class. A bow is a tool. It's only a weapon if it is used as a weapon. A 10" cast iron skillet can be an effective weapon if it is used for one.
Make the most of all that comes and the least of all that goes!
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