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Post by Pat on Oct 8, 2018 15:39:05 GMT -5
Interesting! I was wanting to buy some of your slabbed bricks!
How can I do that?
I think it is a wonderful idea!!
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Post by oregon on Oct 8, 2018 15:46:45 GMT -5
Why don't you start with the holes, come up with some way to have a bed of nails, kiln paper, kiln wash over stainless nails, etc such that the holes are cast into the brick?
other than that, why not some small/medium core drills to produce nice round beads,buttons, or modern day discoidals?
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jamesp
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Member since October 2012
Posts: 36,178
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Post by jamesp on Oct 8, 2018 18:03:40 GMT -5
Thanks for suggestions guys. Lets see how the holes fare in the tumbler first. Going to start off simply drilling holes at 20%/50%/80% shaping in coarse abrasive. Curious how holes will look at these 3 different stages. 3 different size holes, 4mm-5mm-6mm, drilled at each stage. Like 60 test pieces, tumbler holds about 400 pieces. Drilling 1/8" thick glass is tricky, easy to break... Might as well see how the different sized holes look at these 3 stages. Some very rough sawn pieces: These are 3/16" thick at 80% shaped. Right side pieces are about 50% shaped at 1/4" thick. Left side pieces about 15% shaped. If there are any pieces that need touching up on a flat lap it is done about here.
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goatgrinder
spending too much on rocks
Make mine a man cave
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Post by goatgrinder on Oct 8, 2018 18:22:13 GMT -5
A lot of good ideas to think about.
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jamesp
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Member since October 2012
Posts: 36,178
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Post by jamesp on Oct 8, 2018 18:53:06 GMT -5
Interesting! I was wanting to buy some of your slabbed bricks! How can I do that? I think it is a wonderful idea!! Yes Pat. I sell slabs. Feel free to PM me. Thanks
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jamesp
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Member since October 2012
Posts: 36,178
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Post by jamesp on Oct 8, 2018 19:02:43 GMT -5
Why don't you start with the holes, come up with some way to have a bed of nails, kiln paper, kiln wash over stainless nails, etc such that the holes are cast into the brick? other than that, why not some small/medium core drills to produce nice round beads,buttons, or modern day discoidals? I have had problems with the smallest of foreign objects causing fractures in bricks oregon. I even have to clean the glass with water and then alcohol very well. I had a small smear of concrete on a plate of glass in a melt and it propagated cracks in the brick from one end to the other. A small piece of kiln brick from the lid did one in too. It doesn't take much. Slab/small melts, no problem.
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jamesp
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Member since October 2012
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Post by jamesp on Oct 8, 2018 19:07:37 GMT -5
You need an ultrasonic drill, I have a friend who picked one up at an estate auction that is looking to sell his as he has never got around to using it if you are interested let me know and I can put you in touch with him. Tony Let's hope a high production machine is needed Tony. Anything with the word ultrasound sounds like a fun toy.
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jamesp
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Member since October 2012
Posts: 36,178
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Post by jamesp on Oct 8, 2018 19:09:42 GMT -5
The labor problem is always attaching cordage/chain to stone. Ship them separately. Make it the clients labor Can't tell you how many people have said "can you drill holes in them". It would get me in many more pockets if drilled. Many people are quite proficient at chain, cordage and pinch bails.
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Post by fernwood on Oct 8, 2018 19:21:18 GMT -5
So, I am one of those strange people who does beading, hand cabbing, wire wrapping and tumbling.
My biggest problem is getting the holes in cabs and glass that is already tumbled/cabbed. When I have a little time, want to try drilling the holes prior to tumbling a cab. I have the diamond bits for the Dremel. No drill press to attach it to, so have tried doing it by hand in the past. Both on glass and stone, ended up with a 20% success rate. Used the same water drip system that I use for cabbing with the Dremel. Feel fortunate that I only ruined 12 pieces, and most can be reshaped.
Really need to learn how to drill holes in items.
A friend of mine who made glass beads had a type of ceramic dowel on a base with spacers. When her glass slabs were the consistency of taffy, she would cut them into strips and then specific length. From there, place each length around the dowel, which was on a vertical position. Carefully join the hot edges. Then, put the dowels back in what she called a warm kiln. She used a type of kiln wash to prevent the glass beads from sticking to the dowel. Most of the time, her splices joined perfect. Granted, she was trying to sell these beads in around 2010 for $5.00 each.
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jamesp
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Post by jamesp on Oct 8, 2018 19:24:23 GMT -5
I avoid drilling rocks at all cost. Just never been something I enjoyed doing. I am sure glass is like butter in comparison to agates and jaspers though. When you get into the 4mm-6mm range I think they start becoming core bits which means you need to flush out the core after every hole. Years ago I was making pandora beads that required a 5mm hole and there were times where it took as long to get the core out of the bit as it did to drill the hole. I think the larger cores in bits like 1" diameter are not bad to get out but the inner core of a 5MM drill bit is really small. For your volume ultrasonic seems like the logical choice. The largest I have seen ultrasonic bits is 2mm though. Maybe someone that uses one will know the limits. Another thing to think about when doing volume drilling/coring is a the swivel gizmo that allows water to flow through the bit right into the hole you are drilling. Not sure if they work on such small holes though. www.diamond-drill-bit-and-tool.com/Diamond-Drill/Drill-Water-Swivel.shtmlGood luck with your endeavor jamesp. No doubt you will come up with a way to make it work. Chuck The beauty of glass is sawing/drilling/grinding tumbling it Chuck. It is so fast. Like cutting hundreds of 6 x 2 slabs and not even wear a few thousandths off of a 10 inch saw blade. That never happens with rocks. I do go thru grinding wheels dressing the blade though, glass does require blade dressings. Might be the porcelain rated blades I use. I do deliver way more water to the saw blade than the saw pump puts out. Lots of water really increases sawing efficiency. Glass can be cut at 5 times faster diamond blade speed than agate. Telling how fast it saws. And I am in your camp about drilling. I hate drilling agates. But glass is easy if not too thin. High production rates make it less painful. Thanks for the well wishes.
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jamesp
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Member since October 2012
Posts: 36,178
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Post by jamesp on Oct 8, 2018 19:27:35 GMT -5
So, I am one of those strange people who does beading, hand cabbing, wire wrapping and tumbling. My biggest problem is getting the holes in cabs and glass that is already tumbled/cabbed. When I have a little time, want to try drilling the holes prior to tumbling a cab. I have the diamond bits for the Dremel. No drill press to attach it to, so have tried doing it by hand in the past. Both on glass and stone, ended up with a 20% success rate. Used the same water drip system that I use for cabbing with the Dremel. Feel fortunate that I only ruined 12 pieces, and most can be reshaped. Really need to learn how to drill holes in items. A friend of mine who made glass beads had a type of ceramic dowel on a base with spacers. When her glass slabs were the consistency of taffy, she would cut them into strips and then specific length. From there, place each length around the dowel, which was on a vertical position. Carefully join the hot edges. Then, put the dowels back in what she called a warm kiln. She used a type of kiln wash to prevent the glass beads from sticking to the dowel. Most of the time, her splices joined perfect. Granted, she was trying to sell these beads in around 2010 for $5.00 each. Never got around to drilling today. I will report back on drilling in near slabs tomorrow. I like the idea of the tumbler cleaning up the break out on the back side. And of course breaking the corner off, grrrr.
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Post by TheRock on Oct 8, 2018 20:04:56 GMT -5
MaryJane is the Glass Drilling Queen. We Etch Glass And Wine Bottles, She drills holes with a diamond hole saw and puts a string of X-Mas tree lights in them. We have a zillion of those dot things.
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Post by Pat on Oct 8, 2018 20:19:07 GMT -5
MaryJane is the Glass Drilling Queen. We Etch Glass And Wine Bottles, She drills holes with a diamond hole saw and puts a string of X-Mas tree lights in them. We have a zillion of those dot things. Pictures?
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Post by grumpybill on Oct 8, 2018 20:59:23 GMT -5
I do go thru grinding wheels dressing the blade though, glass does require blade dressings. Might be the porcelain rated blades I use. While it could be the blade you're using, my guess is that you're feeding the glass too fast. Glass is melting and clogging up the spaces between the diamond chips. If that's what's happening, dress it with sandstone or limestone rather than grinding wheels. Will clean things up without wearing the blade as much. I recently bought an Agate Kutter blade from johnjsgems . Haven't used it with glass, yet, but it cuts obsidian like butter with almost no chipping.
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NRG
fully equipped rock polisher
Member since February 2018
Posts: 1,630
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Post by NRG on Oct 8, 2018 23:25:00 GMT -5
+1 for agate kutter blade. Rock star on water saws
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NRG
fully equipped rock polisher
Member since February 2018
Posts: 1,630
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Post by NRG on Oct 8, 2018 23:27:27 GMT -5
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NRG
fully equipped rock polisher
Member since February 2018
Posts: 1,630
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Post by NRG on Oct 8, 2018 23:28:45 GMT -5
That is how China drills brazillians of stone beads. Ultrasonic. The have hundred head drills.
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Post by TheRock on Oct 9, 2018 0:14:41 GMT -5
MaryJane is the Glass Drilling Queen. We Etch Glass And Wine Bottles, She drills holes with a diamond hole saw and puts a string of X-Mas tree lights in them. We have a zillion of those dot things. Pictures? Pat I will take Pictures of drilled wine bottles tomorrow. Equipment she uses is a 1/2 Ryobi Drill and 5/8" Diamond Hole Saw. She Submerses the Whole Bottle In a Utility Wagon Full Of Water Sits on a Plastic Lawn Chair and Drills Away. The Key Is Water, To Keep The Object You are Drilling Cool And Lubricated with the water. Just thinking I should Polish the Center holes and make necklaces out of them as she uses green, blue, brn, clear all sorts of colored bottles. A couple samples of te etching.
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jamesp
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Member since October 2012
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Post by jamesp on Oct 9, 2018 6:31:50 GMT -5
I do go thru grinding wheels dressing the blade though, glass does require blade dressings. Might be the porcelain rated blades I use. While it could be the blade you're using, my guess is that you're feeding the glass too fast. Glass is melting and clogging up the spaces between the diamond chips. If that's what's happening, dress it with sandstone or limestone rather than grinding wheels. Will clean things up without wearing the blade as much. I recently bought an Agate Kutter blade from johnjsgems . Haven't used it with glass, yet, but it cuts obsidian like butter with almost no chipping. Must have sawn 5 - 8 inch grinding wheels to shreds Bill. The blade looks brand new. Figured they would have worn way more diamonds off but not. I get alum ox used 8 inch grinding wheels for $10 for a 5 gallon bucket at the junkyard so they don't cost much. System working fine. Thanks though. A note of interest. I purchased all their Silicon Carbide used grinding wheels. Maybe 200 pounds. I break them with a hammer and coarse grind with them tumbling. So I tried sawing them to sharpen my tile blade and they do NOT do a good job dressing like alum ox does - go figure. No answers for that one ? I am using DeWalt and Kobalt from Lowes/Home Depot. Both porcelain blades. Both ~ $50-60. The Dewalt wobbles cutting a wider kerf. The Kobalt does not wobble but cuts slower. Still looking for the best blade. Cutting 6 inches of solid glass is a heck of a cut. It takes all 2.5 HP. Motor spins blade at 4000 RPM so it is singing. Blade speed at diamonds is 5 times faster than 18 inch rock saw blade. Blade is thinner. Must cut 8 to 10 times faster than rock saw. I could put a wider concrete diamond blade and cut yet much faster. Chips mean nothing for my applications. Other than speeding up coarse grind in tumbler.
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jamesp
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Post by jamesp on Oct 9, 2018 6:42:53 GMT -5
Pat I will take Pictures of drilled wine bottles tomorrow. Equipment she uses is a 1/2 Ryobi Drill and 5/8" Diamond Hole Saw. She Submerses the Whole Bottle In a Utility Wagon Full Of Water Sits on a Plastic Lawn Chair and Drills Away. The Key Is Water, To Keep The Object You are Drilling Cool And Lubricated with the water. Just thinking I should Polish the Center holes and make necklaces out of them as she uses green, blue, brn, clear all sorts of colored bottles. A couple samples of te etching. I am going to guess speed kills in the diamond bit drilling arena. As does adding as much water as possible. Preferably drilling underwater. I would venture to say that the 30,000 RPM setting on the Dremel is your best setting for production if all is lined up well and no wobbles. I would take it a notch further and guess that 80,000-100,000 RPM would even get the job done faster if all is straight and no wobble present. An old dentist drill may be available used for cheap ? I believe they are pneumatically driven, he he. I believe this is faster than ultrasonic: "There are two main types of dental drills: the high-speed and the slow-speed. The high-speed drill rotates around 250,000 RPM. That means it spins around more than 4,000 times each second!" catmandewe NRG grumpybill ?
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