bendsum
starting to spend too much on rocks
Member since October 2008
Posts: 140
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Post by bendsum on Jul 12, 2009 15:25:40 GMT -5
I have seen plans for a 14" or 16" swing arm saw where the blade is stationary and the arm/vice swings down into it does anyone have any experience with these?
i was also thinkin of changing the swing arm part to a normal vice are there plans out there that show how to make a vice with cross feed?
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Post by texaswoodie on Jul 12, 2009 17:16:36 GMT -5
Can't help much with the vice. I have a Norton concrete block and brick saw with a 14" lapidary blade on it. Without a vise I would not suggest it for cutting slabs. I use mine to cut a bottom on pet wood specimens and it makes short work of cutting geodes.
Curt
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bendsum
starting to spend too much on rocks
Member since October 2008
Posts: 140
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Post by bendsum on Jul 12, 2009 20:07:15 GMT -5
the plans say to use stop collars and adjust it that way for slabs but i would like a reg cross feed set up
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Post by johnjsgems on Jul 14, 2009 10:46:55 GMT -5
All the "drop saws" I've seen have a fixed clamp and the blade/motor assy. moves. I have a possibly home made 14" unit that has a "step-off" gizmo that is supposed to move the saw over 1/4" each time. Either the gizmo or shaft is worn to the point it isn't dependable so getting uniform slabs is a trial. You could probably mount a conventional vise with cross feed depending on saw design. If you are building the saw you could make a vise modeled after a Barranca or Frantom trim saw vise fairly easily.
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bendsum
starting to spend too much on rocks
Member since October 2008
Posts: 140
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Post by bendsum on Jul 14, 2009 13:09:40 GMT -5
what i seen shows the blade stationary and the vice is on a shaft thats mounted to the back of the saw i cant think of a better way to describe it thanks you all who have helped out i need to take a break i am about to go crazy from tryin to figure out how to make a cross feed vice
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Post by johnjsgems on Jul 17, 2009 11:55:17 GMT -5
Covington uses something like that on their horizontal combo unit. Their vise slides up and down on a shaft with stop collars so cross feed would be manually done each slab. My saw has the motor/blade assy. mounted on a swivel so vise is stationary. A cross feed vise would be fairly easy to adapt. I've seen rotating vises on several for sphere preforming.
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bendsum
starting to spend too much on rocks
Member since October 2008
Posts: 140
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Post by bendsum on Jul 18, 2009 2:36:15 GMT -5
i think i have an idea for cross feed i will use allthread for the shaft leave a little sticking out side the box and when it comes time to make aother cut just crank it over a little
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Post by johnjsgems on Jul 18, 2009 9:06:18 GMT -5
That's the basic idea with the trim saw vises I mentioned except running outside will be a leak source. The Frantom vise had the jaws tigthen with allthread and the two jaws mounted to a bracket with elongated holes allowing the vise assy. to slide toward blade. It had an adjustable stop on other side of blade you set to 1/4" and manually slide vise over each cut. Barranca/Star Diamond vises are very similar but have a "cross indexing" knob that moves the vise over. The Barranca BD2014 10" tile saw has a very simple accessory rock vise that is very similar to the Frantom design. You can check out the pictures on line. The pictures probably make more sense than my description. Might give you some build ideas.
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bendsum
starting to spend too much on rocks
Member since October 2008
Posts: 140
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Post by bendsum on Jul 18, 2009 21:22:48 GMT -5
im goin with a slight variation of my original idea goin to use a allthread shaft fixe the swing arm in one spot and on each side of the ox where the shaft meets the outside i will epoxying a lock nut with the nylon insert that i hope will stop any possible leaks i dont see much oil gettin to the top corners when the blade is down in the bottom
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Post by johnjsgems on Jul 18, 2009 21:44:44 GMT -5
You might use a fiber, rubber or felt washer on inside of box. Oil finds the smallest openings in a saw.
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