joejansal
noticing nice landscape pebbles
Member since August 2009
Posts: 98
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Post by joejansal on Dec 1, 2014 7:54:44 GMT -5
hi all, been making sea shell cabs for 5 years now, just purchased a genie, going to try to make some rock cabs, have a box of slabs coming from wampidy today, have a question on grinding on my 80 grit wheel. do the rocks show some sparking, my shells don't is it normal or am I not getting enough water splashing on the wheel. any other tips will be helpful.
ps also is my diamond speedster band saw good enough to cut the slabs to shape. thanks guys joejan
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Deleted
Deleted Member
Member since January 1970
Posts: 0
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Post by Deleted on Dec 1, 2014 9:34:04 GMT -5
I am pretty sure you are going to find the stone work to be much slower because of the hardness.
Occasional sparking is normal even if there is enough water. Just enough water to prevent making mud works for me.
Anything diamond is going to cut stone you are just going to find more wear and slower going. There are several on here that use wet band and ring saws to cut their slabs for both cabbing and carving.
Good luck with your new material. I think you will find that the thin slabs will cut fairly easy. Especially the nephrite jade which is tougher (harder to break) but a little softer which will make it easier to work. Jim
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Post by deb193redux on Dec 1, 2014 9:49:44 GMT -5
some sparking is OK, but more water might also be useful. Some rocks craze with heat.
Most diamond band saws are for specialty cuts requiring detail or inside curves. They are generally beefed up glass saws, and are very slow on all but the thinnest slabs. My G-40 tries my patience on 1/4" agate and jasper.
You can cut the preform more exact, and some time is made up in that regard. Many cabbers only rough out preforms, and grind down to the line. IMO, this reflects less versatility in older blades and the high costs of mis-cuts. Today a stiffer sintered diamond blade can act a bit the part of a grinder, and preforms may be cut to almost final shape - possibly even beginning the bevel.
You will need to find you own balance of where to put your time and where to maxamize your control. A cheap trim (or even tile) saw could save time and spare band saw blades and guide path parts.
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Post by roy on Dec 1, 2014 10:10:30 GMT -5
the hard stuff will spark a little remember dont use to much pressure or you will ware out the wheel real fast
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Post by fantastic5 on Dec 2, 2014 12:42:33 GMT -5
I see sparks from time to time while cabbing on my genie too. When I first started using my genie I was told that you cannot have too much water and water = longer lasting wheels. So I use both giesers under whatever wheel I am working on.
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joejansal
noticing nice landscape pebbles
Member since August 2009
Posts: 98
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Post by joejansal on Dec 2, 2014 15:20:57 GMT -5
thanks fantastic5, i'll try both giesers under same wheel joejan
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joejansal
noticing nice landscape pebbles
Member since August 2009
Posts: 98
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Post by joejansal on Dec 2, 2014 15:21:10 GMT -5
thanks fantastic5, i'll try both giesers under same wheel joejan
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