Turning Bow Saw Build - Page 3 - Woodworking Talk - Woodworkers Forum
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post #41 of 60 Old 04-02-2012, 11:14 AM
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Originally Posted by firemedic View Post
Well, still not finished but it works quite well! I'm surprised to see that it is easier to control cutting on the push stroke that may be a familiarity thing for me though.

I'm going to make a nice toggle that will pop into a shallow mortice on the stretcher. That will be Mahogany like the knobs.

One of my pin holes isn't straight, you can see that the knob looks slanted down. I didn't bore my pin holes prior to shaping because I see that as backwards on a mock-up. I'll be able to do that on the next though.

Also you'll notice I lightened up the stretcher a good bit.

I think it's a successful mock-up.

...build n burn - live n learn...
Now that's a piece o' art right there Tom
I can't wait to see the final product.

"Only two defining forces have ever offered to die for me; JESUS CHRIST and the AMERICAN SOLDIER. One died for my soul,the other for my freedom."

At birth, God bestowed each & everyone of us with the most important responsibility there is..................FREE WILL.

Last edited by Jim West Pa; 04-02-2012 at 12:58 PM.
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post #42 of 60 Old 04-02-2012, 12:05 PM
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It does, doesn't it. You buying that?

...build n burn - live n learn...
No, I haven't bid on it.
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post #43 of 60 Old 04-03-2012, 10:49 AM Thread Starter
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Did a lil more R&D yesterday. Tried a 24" 1/2" 4 tpi skip blade (the previous was 21" 12 tpi 3/8") and discovered something I should have figured before hand. Flex back blades in that larger size are all but useless for a bow saw!

The blade had so much flop to it that it was very difficult to control. I had a go at a 4" wide piece of poplar and got frustrated after spending 10 min ripping only 2.5" down with nothing even close to straight. Picked up a D-8 and ripped 5" along side of it no time just to make sure I wasn't crazy.

So that brings me to TRYING to have a tech rep from Simonds Int to call me back about hard back wood ripping blade stock...

Stay tuned!

...build n burn - live n learn...
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post #44 of 60 Old 04-03-2012, 05:56 PM Thread Starter
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Just got off the phone with Olaa in the manufacturing dept at Simonds Int. Nice guy.

Anyway, they are sending me a sample box of hard back blade stock to try out all 1 1/2" to 2" wide and 4-8 pitch some variables pitch as well... Once again, stay tuned!
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post #45 of 60 Old 04-03-2012, 06:18 PM
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Can you explain the flop around part a little more?
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post #46 of 60 Old 04-03-2012, 11:23 PM Thread Starter
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Can you explain the flop around part a little more?
My best explanation of what's going on is the front of the blade is hardened and the back is untempored. My understanding is that most bandsaw stock is made soft back so that it holds up to the abuse of the small turning radius of smaller band saws.

What's happening is the hard front of the blade holds tension while the back of the blade is not under enough tension - relatively speaking. The the back of the blade flops around... With a hard back blade the front and back will both be tempored the same so that this doesn't happen... Hopefully!
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post #47 of 60 Old 04-04-2012, 01:44 AM
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this could be a valuable little piece of info......glued to it

lawrence

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post #48 of 60 Old 04-04-2012, 04:54 AM
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Quote:
Originally Posted by firemedic

My best explanation of what's going on is the front of the blade is hardened and the back is untempored. My understanding is that most bandsaw stock is made soft back so that it holds up to the abuse of the small turning radius of smaller band saws.

What's happening is the hard front of the blade holds tension while the back of the blade is not under enough tension - relatively speaking. The the back of the blade flops around... With a hard back blade the front and back will both be tempored the same so that this doesn't happen... Hopefully!
Did you try turning the blade end for end, and cut on the pull stroke?
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post #49 of 60 Old 04-04-2012, 05:23 AM Thread Starter
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Originally Posted by Brink

Did you try turning the blade end for end, and cut on the pull stroke?
Yes... Sure did! Slight improvement but almost unremarkable...
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post #50 of 60 Old 04-06-2012, 06:43 PM
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Just watched an episode of the Woodwrights Shop where he had a guest making one of these. Makes me want to attempt one ;-)

That bowl was perfect right up until that last cut...
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post #51 of 60 Old 04-06-2012, 07:33 PM
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Originally Posted by sawdustfactory
Just watched an episode of the Woodwrights Shop where he had a guest making one of these. Makes me want to attempt one ;-)
Yup, that's a good one. "as the saw turns". http://video.pbs.org/video/2172468731/
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post #52 of 60 Old 04-06-2012, 07:35 PM
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I think Tom should be a guest on Roy's show.
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post #53 of 60 Old 04-06-2012, 07:55 PM Thread Starter
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Quote:
Originally Posted by sawdustfactory
Just watched an episode of the Woodwrights Shop where he had a guest making one of these. Makes me want to attempt one ;-)
Quote:
Originally Posted by Brink

Yup, that's a good one. "as the saw turns". http://video.pbs.org/video/2172468731/
Yeah, it is a good episode!


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I think Tom should be a guest on Roy's show.
HAAA!!! Yeah, ok...
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post #54 of 60 Old 04-06-2012, 08:35 PM
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Originally Posted by firemedic

Yeah, it is a good episode!
...
I had to watch it this morning to find out the widget on top of the toggle is called a whirl. Maybe spelled wurl.
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post #55 of 60 Old 04-07-2012, 12:25 PM Thread Starter
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Originally Posted by Brink

I had to watch it this morning to find out the widget on top of the toggle is called a whirl. Maybe spelled wurl.
Ahh! That's what you txt me the other day... I forgot to go back to it later...

THANKS!
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post #56 of 60 Old 04-07-2012, 12:29 PM
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Kinda young for senility?
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post #57 of 60 Old 04-07-2012, 02:21 PM Thread Starter
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Kinda young for senility?
Never too young to lose your mind :)

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post #58 of 60 Old 04-10-2012, 10:27 AM
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How's that saw comin along Tom ?

"Only two defining forces have ever offered to die for me; JESUS CHRIST and the AMERICAN SOLDIER. One died for my soul,the other for my freedom."

At birth, God bestowed each & everyone of us with the most important responsibility there is..................FREE WILL.
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post #59 of 60 Old 04-10-2012, 11:07 AM
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post #60 of 60 Old 04-10-2012, 11:46 AM Thread Starter
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waiting for that band stock to come in...

In the mean time I'm trying to catch up on jobs that I've been neglecting due to all these random personal projects... Still have three saws to finish for the 'other' thread
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