joanne
off to a rocking start
Member since February 2012
Posts: 19
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Holes
Apr 26, 2012 20:50:40 GMT -5
Post by joanne on Apr 26, 2012 20:50:40 GMT -5
I have started to cut holes in my cabs and have found that the diamond drill will make about 5 to 8 cuts and then it is fryed, is this right or am I doing something wrong , I do this with the stone submerged in water , running drill at prox full speed of a Foredom flex tool.
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Minnesota Daniel
freely admits to licking rocks
A COUPLE LAKERS
Member since August 2011
Posts: 891
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Holes
Apr 26, 2012 22:03:46 GMT -5
Post by Minnesota Daniel on Apr 26, 2012 22:03:46 GMT -5
Are you sure it's shot? Try dressing it with a SiC dressing stick. Are you pumping it in and out of the hole while you're drilling?
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Roger
fully equipped rock polisher
Member since August 2005
Posts: 1,775
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Holes
Apr 27, 2012 9:25:46 GMT -5
Post by Roger on Apr 27, 2012 9:25:46 GMT -5
I have the same problem I try less presure and a little slower speed.
Roger
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Deleted
Deleted Member
Member since January 1970
Posts: 0
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Holes
Apr 27, 2012 10:12:10 GMT -5
Post by Deleted on Apr 27, 2012 10:12:10 GMT -5
If you do not move the bit up and down you will fry the bit even if you are drilling under water. The water can not get to the bottom of the hole without pulling the bit out every two or three seconds then dropping back in. It is an acquired talent (it took me a while to get it right) getting the pressure and up and down timing right but you will figure it out with a little practice. Sometimes it can take 20 or 30 minutes depending on the stone and the thickness so you have to be very patient. Jim
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Holes
Apr 27, 2012 12:20:06 GMT -5
Post by Rockoonz on Apr 27, 2012 12:20:06 GMT -5
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riverrock
fully equipped rock polisher
Member since April 2010
Posts: 1,395
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Holes
Apr 27, 2012 20:22:05 GMT -5
Post by riverrock on Apr 27, 2012 20:22:05 GMT -5
thanks for the answers i was having the same problem.
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Holes
Apr 27, 2012 20:39:21 GMT -5
Post by Tonyterner on Apr 27, 2012 20:39:21 GMT -5
I tried drilling a few times, I hated it. Top speed of a Fordom tool seems pretty fast to me.
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Holes
Apr 28, 2012 7:56:53 GMT -5
Post by MrP on Apr 28, 2012 7:56:53 GMT -5
I mark the spot I want to drill with this. www.amazon.com/Pentel-Permanent-M....31772052&sr=8-1I drill with these. www.kingsleynorth.com/skshop/product.php?id=46570&catID=1030I use this in the water. They used to sell it by the quart. Looks like it is by the Gal now. www.kingsleynorth.com/skshop/product.php?id=87802&catID=112I use a handheld Dermal to drill with. I have a 4" X 6" 1" deep dish. I have a thick piece of Obsidian on the bottom that I lay the cab on, this helps for blowouts. Not all cabs are flat so it isn't perfect but does work well on most of them. I have drilled thousands of holes and found that the Lubri - Kool is a must. Also using the Obsidian helps with sharpening the drill bit. A lot of times when the bit doesn't want to drill just put it on the Obsidian, with a light touch, and it will drill again......sometimes. As far as how many cabs can be drilled with a bit, it depends on the material, but even some that usually drill easy most of the time may give you a problem the next time and visa a versa. I have drilled as many as 50 cabs, of all different types, with 1 bit and have also used 4 bits for 1 hole. Most of the time it is 10 - 20 cabs with a bit. Sure wish the holes could be drilled in seconds instead of minutes..............MrP
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Holes
Apr 28, 2012 12:11:49 GMT -5
Post by Hard Rock Cafe on Apr 28, 2012 12:11:49 GMT -5
Yorkshire Jack recommends drilling at a slower speed. And yes, raising and lowering the bit repeatedly is a must.
Chuck
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