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6th Dec 2012, 11:20 AM #1Senior Member
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- May 2010
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suitable surplus source for right angle worm drive gear box ?- power hacksaw
G'Day,
My Dad has a small power hacksaw which uses normal 10" hacksaw baldes - I was thinking about building one myself based on his unit, but using 12" blades.
I was looking at various designs around, and the gearing down requires a lot of realestate to cater for belts and pulleys - so I was toying with utilising a worm drive to reduce the speed and footprint.
Is anyone aware of a common source of right angle worm drive gearboxes which could handle up to 1 HP (or 800W)? I know I've seen them in bigger industrial applications, but was hoping maybe there is a more domestic use for them which I can then troll the tips, curbside collections, wreckers etc to find one. I was hoping maybe there is a car, washing machine, common device which uses such a gearbox as a component...
Thanks,
Des
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6th Dec 2012, 12:22 PM #2Philomath in training
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- Oct 2011
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- Norwood-ish, Adelaide
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Des,
If you look in this thread -
http://www.woodworkforums.com/f65/co...-build-158340/
Some enterprising souls have used truck brake adjusters.
Sadly, the OP of this thread is no longer with us, but there are some good ideas here.
Michael
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6th Dec 2012, 01:27 PM #3Most Valued Member
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- Jun 2012
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6th Dec 2012, 02:22 PM #4
You may be interested in this type,I'm in the middle of building it from only stuff I have lying around, including an .6HP motor off an old pump
I have the plans on my computer if needed, its said to be very accurate though I've yet to find that out.
Leroy.
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6th Dec 2012, 03:20 PM #5Senior Member
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- May 2010
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- Perth
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- 135
Thanks for the reminder on the truck slack adjuster - I recall reading that thread and I couldn't remember where - but I did recall seeing something "surplus" which could be turned into a gearbox.
If anyone else has suggestions please sing out, but in the meanwhile I've rang the truck brake places around the nearrest town, and lef tmy details in case a slack adjuster and S-cam become available. - I'll keep my eyes open for other options as well.
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6th Dec 2012, 03:44 PM #6Dave J Guest
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6th Dec 2012, 04:10 PM #7Distracted Member
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- Lower Lakes SA
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I have a washing machine gearbox I was going to use for mine - before I bought my Royco. It came from an older top loader and has a rotary input and a reciprocating output at a substantial reduction. Don't recall the numbers but will dig it out later and take a pic. Youtube has a few washing machine derived hacksaws.
Edit: That's not strictly true. The output is still rotary but oscillates back and forth.
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6th Dec 2012, 05:45 PM #8Distracted Member
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- May 2010
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- Lower Lakes SA
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- 2,607
There's always fleabay: Sonnerdale 10:1 worm drive gearbox | eBay
Also, look out for a busted rotary hoe. These have a beefy worm drive.
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