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Lapidary / Gemstone Community Forum
March 24, 2019, 04:44:26 am
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New pencil air grinder

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Author Topic: New pencil air grinder  (Read 2070 times)
aness
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« Reply #45 on: August 21, 2013, 07:58:31 pm »

The thing that is really nice about a high speed tool like this is that it doesn't snag like a lower speed  flex shaft tool. I can imagine that when working on stone with a diamond bit it would be pretty much like working on bronze or like what your dentist experiences when drilling on your teeth. These things are just spinning so fast that it is in fact like drawing with a pencil. I know that when I was chasing bronzes that it was like that, just so easy to work the surface back down to what it should be, even restoring very fine detail with carbide burs without difficulty. I was using a 1-1/2 HP air compressor at the time and had more than enough air. I still have my old tool and it is a precision instrument but the Harbor Freight tool should be able to preform some of the same basic operations. I don't think it will work as hard nor as long but what  would you expect for under $10? It would give you a chance to try a high speed tool to see if it is something you want to invest a large chunk of change in before you go and spend $300 on a tool that will not serve your purposes.

Bentiron:  Wouldn't a dremel drill be good enough if a diamond drill bit was used?
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3rdRockFromTheFun
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« Reply #46 on: August 21, 2013, 11:05:19 pm »

I was very frowny on dremels for carving rock for some time but in recent months I've been seeing a lot of carvings over on facebook that when one takes the time to read the attachment - were made with dremels.

I think different tools yield different abilities according to technique and preference.

You can give somebody without an ounce of art in them the most expensive and technically able tool made and you will not get art.

You can give an artist a rock and a stick and bag of grit and they'll make the most artful carving you've ever seen.

I am constantly blaming my tools for my problems. Much of that is justified in one way or another, but never in the outcome - that's all me, for better or for worse.
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-frank-

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