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Post by Donnie's Rocky Treasures on Jan 17, 2012 18:30:55 GMT -5
What's this part of the saw for? Thank you!..........................Donnie
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Post by FrogAndBearCreations on Jan 17, 2012 18:47:02 GMT -5
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Post by jakesrocks on Jan 17, 2012 18:52:16 GMT -5
Donnie, there would have been a flat plate about 1" high and 2" long attached to a rod which fits in the hole. A thumb screw would have been in the small hole on top. It would have been used for setting the thickness of your slabs. Just adjust the vice until your rock touches the small plate and cut.
For some reason, that piece is almost always missing from older saws. Either they were thrown away or lost.
Don
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Post by FrogAndBearCreations on Jan 17, 2012 18:58:14 GMT -5
that link to the thread also has the gravity feed your wanting to do
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Post by Donnie's Rocky Treasures on Jan 17, 2012 19:10:34 GMT -5
Thank you, will check it out!
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Post by jakesrocks on Jan 17, 2012 19:15:53 GMT -5
The power feed motor pictured in that link is off of a 10" Covington saw. I have the identical motor and cover on mine.
Don
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Post by jakesrocks on Jan 17, 2012 22:08:31 GMT -5
Here's a pic of that same power drive motor on my old 10" Covington. This saw is from around the 1970's. These motors are a lot more reliable than the ones in use now. Don
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Post by deb193redux on Jan 17, 2012 23:17:06 GMT -5
Donnie, a piece like this. Not really needed with the cross feed on the vise, but can be useful for lining up the 1st slab while clamping.
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Post by Donnie's Rocky Treasures on Jan 18, 2012 7:39:18 GMT -5
Thanks, Daniel, are you talking about that little piece there. It's kind of hard for me to get a perspective on it so close especially since these are things I am not that familiar with yet.
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Post by deb193redux on Jan 18, 2012 10:19:33 GMT -5
The sliding (or threaded) bar goes through the hole you showed. The plate (i.e., fence) allows the cut face of a rock to be squared up to the blade before the clamp is tightened so that the 1st slab is parallel. Also the distance of the plate from the blade controls the thickness of the 1st slab.
The cross feed on the vise can be used to move the clamped work over until it touches the plate.
Many saws do not have this kind of fence. You line the 1st cut up as best you can If the stone is rough, you get an end cut. IF the stone has a previously cut face, you might get a slight taper on the 1st slab. Once it is clamped, you can just turn the cross feed handle the same number of times before each cut and you can get uniform slabs w/o using a fence.
On saw vices that do not have a cross feed, where the clamp must be opened and the rock moved for each new slab, then some sort of fence can be very important - especially on thinner slabs. I don;t find it too hard to manually line up slabs for a pretty close and pretty uniform 1/4 inch when I hand feed without a vise or fence, but the thinner you are making the slab, the more any slight taper sticks out. If you think about it, the fence that comes on most tile saws could be used this way, but most folks just chuck the fence aside and start cutting. - Depends on the project and the level of precision needed.
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Post by Donnie's Rocky Treasures on Jan 18, 2012 11:32:28 GMT -5
Thank you, Daniel!
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