juzwuz
has rocks in the head
Member since April 2010
Posts: 526
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Post by juzwuz on Oct 14, 2016 23:36:19 GMT -5
It's been a while since I posted anything. Been busy with stuff. I recently picked up a used diamond drag saw blade from craigslist. I'm thinking about attaching it to the little power hacksaw. The power hacksaw only has a 6" stroke. Any idea if that will work?
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quartz
Cave Dweller
breakin' rocks in the hot sun
Member since February 2010
Posts: 3,352
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Post by quartz on Oct 14, 2016 23:52:58 GMT -5
Probably have to make an outer end guide for the blade, and slow the saw down a bunch. The saws like that one I've seen go pretty fast. Or cut the blade up to make better use of the 6" stroke.
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Post by woodman on Oct 17, 2016 10:41:59 GMT -5
I agree with quartz. an end guide a must. You could take the easy way out and sell me the blade. I would be also concerned about the speed of the hack saw. Only one way to find out. water as a coolant does not work, especially on the hard materials. Notice the stiffener on my blade, it keeps the blade from flopping around when you start the cut.
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Fossilman
Cave Dweller
Member since January 2009
Posts: 20,711
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Post by Fossilman on Oct 17, 2016 15:24:00 GMT -5
Seen drag saws for steel(Uncle had one),but not for rock! Nice setup Woodman.............
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Post by woodman on Oct 17, 2016 20:56:55 GMT -5
Seen drag saws for steel(Uncle had one),but not for rock! Nice setup Woodman............. We had one to saw wood with when I was a kid. Chain saws did away with them Camp 18 on highway 26 east of seaside has three or four of them.
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Deleted
Deleted Member
Member since January 1970
Posts: 0
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Drag Saw
Oct 18, 2016 0:56:59 GMT -5
via mobile
Post by Deleted on Oct 18, 2016 0:56:59 GMT -5
I agree with quartz. an end guide a must. You could take the easy way out and sell me the blade. I would be also concerned about the speed of the hack saw. Only one way to find out. water as a coolant does not work, especially on the hard materials. Notice the stiffener on my blade, it keeps the blade from flopping around when you start the cut. Does the stiffener come off to finish the cut?
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Post by Garage Rocker on Oct 18, 2016 1:15:12 GMT -5
I agree with quartz. an end guide a must. You could take the easy way out and sell me the blade. I would be also concerned about the speed of the hack saw. Only one way to find out. water as a coolant does not work, especially on the hard materials. Notice the stiffener on my blade, it keeps the blade from flopping around when you start the cut. Does the stiffener come off to finish the cut? Woodman said: When I take the stiffeners off, I install the box on the end and put a bit of weight in it. makes it cut a bit better. Can't put in on to soon or box will hit the guide. Read more: forum.rocktumblinghobby.com/thread/75050/real-petrified-wood-cut#ixzz4NPm8E2y7
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juzwuz
has rocks in the head
Member since April 2010
Posts: 526
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Post by juzwuz on Oct 20, 2016 14:20:59 GMT -5
Thanks for the link. I missed that thread when it first came out. I was only able to find one other example youtube video showing a lapidary drag saw so between them I'll work on a prototype. I'm planning on attaching the drag saw blade to the end of the powered hacksaw. I'll drive the hacksaw with a 1 HP DC motor with a speed controller so I shouldn't have to come up with a lot of different pulleys and gear reduction. I was also puzzling over how to keep the blade from wandering during the initial cutting and the end guide on Woodman's drag saw looks good.
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Post by woodman on Oct 21, 2016 9:58:33 GMT -5
Post some pictures of what you end up with.
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