Treadle driven band saw ... insanity? - Woodworking Talk - Woodworkers Forum
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post #1 of 12 Old 01-21-2020, 02:34 PM Thread Starter
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Treadle driven band saw ... insanity?

Thing 1: I'd like something that can resaw reasonably sized logs (8-10").
I've been watching CL for a while, and good band saws don't appear in my area. I can't afford to drop $1k for a machine. Kids and household suck me dry.

Thing 2: I thought it could be cool to build a treadle band saw. I've found info on treadle lathes, and treadle scroll saws. I don't find much in the way of band saws.

Would it be asking too much of a treadle saw to cut 8-10" logs? Work would be slower. There wouldn't be much power behind the blade, but I assume smoothness could be somewhat remedied by adding a flywheel.
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post #2 of 12 Old 01-21-2020, 02:48 PM Thread Starter
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Concept ... something like this one.
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post #3 of 12 Old 01-21-2020, 06:48 PM
where's my table saw?
 
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Once you build a frame ......

If you can build a stout enough frame for 8" to 10" logs, you may just as well add a motor or gas engine .... steam maybe?

Old snow blowers are often repurposed to build other devices. They have 6 HP or 8 HP engines. My neighbor built a wire pulling capstan using snow blower's speed reduction system. A garden tractor would offer 4 or 6 speeds at the rear drive wheels.

As to a treadle drive, you would loose momentum almost immediately under the feed rate that would be practical. Even the largest flywheel wouldn't be able to keep up because the feeding is constant with no time to rebuild momentum. I don't think it's possible/practical, but I'd love to be proven wrong on this one.


The answer to your question will only be as detailed and specific as the question is detailed and specific. Good questions also include a sketch or a photo that illustrates your issue. (:< D)

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post #4 of 12 Old 01-22-2020, 03:03 AM
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Here is a homemade one in use:


Wise men speak because they have something to say; fools because they have to say something -Plato

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post #5 of 12 Old 01-22-2020, 06:28 AM
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The Dutch navy was built using windmill driven saws. The UK used hand saws and pits.
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post #6 of 12 Old 01-22-2020, 06:43 AM
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Quote:
Originally Posted by johnep View Post
The Dutch navy was built using windmill driven saws. The UK used hand saws and pits.
johnep

One word: Camperdown
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post #7 of 12 Old 01-22-2020, 09:43 AM Thread Starter
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Quote:
Originally Posted by FrankC View Post
Here is a homemade one in use:
...
That's basically what I was thinking about. The fact that machine is built for two people (for bigger cutting operations), suggests maybe a one man saw for big jobs would not be feasible.

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post #8 of 12 Old 01-22-2020, 09:51 AM
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For a long time I've wanted to come up with a human powered garden mulcher for leaves and twigs and small branches. Maybe it's possible after all.
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post #9 of 12 Old 01-22-2020, 02:43 PM
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I would think a hand saw made to rip timbers would be much more efficient than any foot powered band saw.
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post #10 of 12 Old 01-23-2020, 06:08 AM
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Thanks for the reference to the British victory. Problem in the navy at the time is that officers were appointed on their position in society rather than merit. By the time of Trafalgar, reforms resulted in officers who knew what they wer doing and respected their men rather than regard them as disposable canon fodder. It was a pity that Lord Haig (Of whisky fame) still believed that policy of attrition would win the war.
Further research has shown me that windmill sawing by the Dutch nearly 200 years earlier. In the 1600s Van Tromp had a broom at his masthead to "sweep the British off the seas".
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post #11 of 12 Old 01-27-2020, 11:50 PM
where's my table saw?
 
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K, how about a metal lathe?

Maybe even more challenging a metal lathe:

The answer to your question will only be as detailed and specific as the question is detailed and specific. Good questions also include a sketch or a photo that illustrates your issue. (:< D)
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post #12 of 12 Old 02-03-2020, 09:49 PM
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I'm sure it's possible. I'd probably look into building an extremely heavy flywheel, and using that to drive the wheels. That would probably help keep the blade speed consistent, and up the odds of being able to complete a cut.
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