Tunnel polishing

This category has outgrown its origins and is now the best place to discuss cutting opal. There is also a comprehensive cutting opal guide for newbies!

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Re: Tunnel polishing

Postby Iceopals » Mon Jan 14, 2008 3:03 pm

Robin- thanks! These were really fun, different. At first it was more frustration, trying to figure out how to get the polish. Now I want to play some more. :)
Mick!!-- heheehee... THANKS!! :twisted: Now, everytime I see that grey stone I'm gonna see an alien head!!!!!!!!! And I HAD thought it looked like a big wing for a butterfly!!!!!! :lol: Well, I think I will just have to ignore the alien visions... But the cat now, that is a vast improvement!! All I could see was a pelvis...........................................
As for how they looked before I started, they changed very little, mostly just the polish and a bit of sand removal. The wet ones early in the thread was how they looked when I first got them. Someone previous to my ownership had removed whatever was on there as far as big muckety-muck.
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Re: Tunnel polishing

Postby mick » Wed Jan 16, 2008 9:10 am

Hmm methinks that person couldnt work out how to polish them, unlike you!
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Re: Tunnel polishing

Postby Iceopals » Wed Jan 16, 2008 6:05 pm

You know, I thought about that too. This person, I don't remember their business or personal name, cut opals also, so I wondered why they would sell these for the lower prices rather than doing the work and making the profit. Don't get me wrong, they weren't cheap and I am sure they made their profit! Someone had questioned about what their retail value might be. I have absolutely no clue!!! They will appeal to a more limited "crowd" than would a cabochon, and they will be considerably more difficult to design around and fabricate a piece for. But they will be so cool! And whoever wears it will certainly not be competing with someone else for the "rare piece of the evening". But figuring out how to price these should be very, very interesting. Any thoughts and ideas are certainly welcome!
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Re: Tunnel polishing

Postby bolsa » Sun Mar 02, 2008 6:03 am

hey how about back to the small taperd wooden dowl if you can split the end enough then you can wrap it with loose cotton like a q-tip but only to the size that you want and then ad whatever abrasive or polish that you want you could even ad it to your rotary tool if you have a chuck keyto tighten it just don't use much pressure let the abrasives do the work not your elbow greese it 's also pretty inexpensive
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Re: Tunnel polishing

Postby Yankee42 » Sun Mar 02, 2008 7:59 am

Alright here comes my general two cents worth, When I worked in fiber-optics, we had q-tips that were firm and solid and pointy, They would be perfect, unfortuneately I have not discovered a source for them in the retail market. These q-tips were used for cleaning our elastomer pads which were basically a treated rubber surface. My suggestion would be to visit the nearest cable/internet provider that has fiber-optics deployed, Chances are good they will be in possession of those I described. Because they have field splicers to maintain. Ours came from a japanese company and all of their writing on the package was japanese, so to this day I haven't found them yet either.
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Re: Tunnel polishing

Postby Iceopals » Sun Mar 02, 2008 5:23 pm

Aha!!! I want, I NEED those q-tips!!!!!!!!!!!!!! Fiber optics, huh? Anybody here know anyone currently in the business? Come on Mauibuck, you know everyone!!! :) Well, that sounds really perfect though, because the main problem that I have with the tapered felt bullets is that they are too large, and they are too rounded, and they break so easily with any pressure. The regular q-tips is a wonderful idea, thanks! But if I can get the specialty ones that sounds like one step even better. That is fabulous! Thank you both, I have a couple I'm playing with right now that need that smaller point. Actually, most of what I have worked with would have worked better if I had used something smaller like a q-tip.
I am really having fun with these irregular opals. Sometimes that opal just won't cut into a cabochon, but it's such a shame to cut off so much beautiful material to make it fit into a mold like a cabochon cut. I have quite a few pieces that the sand or inclusions is extensive and there really is no way to handle that and cut for a more traditional look. I am still experimenting with the best shapes and tools to use to get into all of the grooves and tunnels, but I am narrowing down what will work for me in a reasonable amount of time. The best single piece of advice I have found so far came from Mike4bears on using the tumbling to get a preliminary look to the stones, and what grits to use to accomplish this without losing too much of the opal to course tumbling. Otherwise it is impossible to see what areas of the opals still need extensive work. The initial tumble polish allows me to know where I need to work longer by hand.
I really appreciate any and all advice, and please keep adding on more advice! I would still also love thoughts on pricing, if anyone has any. I have sold one piece, the one with the most complete tunneling system. I don't think I got even near what it's value should be, but it's so hard to tell! The carved pieces I have followed pricing on were so outlandishly much more than I could ever get in my market area in Virginia!! And most pieces that I have seen carved are huge and justifiably worth a fortune. Anyway, thanks, and I'll show you more as I get them done. 8)
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Re: Tunnel polishing

Postby mauibuck » Sun Mar 02, 2008 10:04 pm

Waooo Ice. I'm not QUITE that good, I just happen to be a decent investigator. However, a mind reader I'm not so I'm not really sure what Yankee is talking about.

Here is a site with a bunch of industrial swabs but short on photos. It sounds like their arrow swab my be the item of discussion but there is no picture.
http://joscoproducts.thomasnet.com/keyw ... &SchType=2

Here is another source of industrial cotton swabs
http://www.dynalabcorp.com/wc1/productl ... ant+Swabs+

However, it might be easiest for Yankee to contact somebody still working where he worked and ask for info on the manufacturer of that particular item.

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Re: Tunnel polishing

Postby Yankee42 » Sun Mar 02, 2008 10:20 pm

The q-tips I'm talking about have eluded me over the years too gang, I can't contact the company I used to work for because they no longer exist. They closed the doors right after we finished building the equipment for the world's largest Fiber Network and said to everybody... "We don't need you for the next 25-40 years" . Regular Q-tips aren't wrapped tight enough to be of much use. The ones we were using were very tight and very firm, The Cable/internet providers in your areas may have some of this style, Ask one of their technicians, I know its a goose chase and Maui hates those. Sorry Buck, I can't be any more specific at this time. I've been through about 22 pages searching... I'll check out the links above and see if I can find anything more specific. That's the best I can do.http://www.dynalabcorp.com/wc1/productdetail.aspx?catalogid=1&categoryID=2&subcategoryid=910&catcode=S&subcatcode=73&subcatdesc=Swabs%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20&subcat2code=C&subcat2desc=Cotton+Swabs+++++++++++++&itemnumber=9432-0000%20%20%20%20%20%20&price=2.4770 Let's see if this link works. These are the ones, not exactly, but they should work rather well. Great job Buck.http://joscoproducts.thomasnet.com/item/specialty/first-aid-kit/pn-10692?&plpver=10&origin=keyword&by=prod&filter=0These guys were a little more limited but the one they showed the picture of is one tough q-tip and would work.
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Re: Tunnel polishing

Postby mauibuck » Sun Mar 02, 2008 10:35 pm

OK, I'm at a block for the moment. I cant' read Kanji but have friends who can. But even that doesn't help unless we have the product in hand. Here is a link to a variety of felt tips for Dremels that is a wider range than I can find in local stores.

http://www.widgetsupply.com/page/WS/CTG ... elt-bullet

Anything there suitable?

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Re: Tunnel polishing

Postby Iceopals » Sun Mar 02, 2008 10:56 pm

Hmmmmmmmmmmmmm!!! I am ABSOLUTELY NOT paying you guys enough!!!!! Wow, I LOVE ya!!! 8) I'm gonna order some of each. Well, assuming there is not a minimum that is just out of this world. The felt tips for Dremel are much smaller than I am using. Well, the 5/16 are, I was using the larger ones found further down the page. The q-tips, well, I don't know which will work better, but if their minimum is reasonable, I sure will let you know how they compare!!! Tomorrow I'll be ordering ALL of them!!! hehee... Such good fortune to be able to use the right tools!!!
I cut two opals on the old Genie today, maybe 15 minutes apiece. I want to take a shot of one and get opinions about it. More or less standard cabochon. Killer fire in one portion, then relatively interesting potch in most of rest. Decided against the tiny cab of the high fire, think it would do better as a hefty stone possibly for a ring with the high fire being showcased by the potch designs. Anyway, I'll get it in an appropriate thread in the next day or two. Mauibuck, it's one of the large flat gray ones that you sandblasted for me. It had the vein of color running right through the middle of the muck. What is left seems very interesting to me, so I just cut around it and left the rest for "character". I owe you multitudes of tumbling. :D As a matter of fact, if you have something you would like hand tooled, just let me know. Much, much appreciation.
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Re: Tunnel polishing

Postby mike4bears » Mon Mar 03, 2008 2:27 am

carol. glad mauibuck got the link. now this is what i do with the small bobs to shape them. make them smaller or put a point on them. i put them in the Dremel and as it is running i hold the bob to sand paper. see photos mike
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Re: Tunnel polishing

Postby Yankee42 » Mon Mar 03, 2008 4:39 am

Well theres one that got by me, That's defenitely better than the q-tips, Save your money Ice. Nice post Mike 8)
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Re: Tunnel polishing

Postby Robin » Mon Mar 03, 2008 2:42 pm

There are also some very good ideas in this article:

http://www.meevis.com/jewelry-making-cl ... arving.htm

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Re: Tunnel polishing

Postby mike4bears » Mon Mar 03, 2008 5:52 pm

great link. i like the wood dowel you shape and charge with diamond paste to Polish. i have been looking into making a wood polishing and grinding doohickey. its said that it work very good for opals.
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Re: Tunnel polishing

Postby lostwax » Thu Jul 16, 2009 5:35 am

Ice, those stones are fantastic..always good to see something a little different.
I'd like to get your thoughts on the tumbling media/recipe you used as I'm toying with the idea of tumbling a few low quality mintabie slices and some boulder, mainly to remove the hard sand & rusty ironstone layers . did any of your pieces chip or crack during the process?

From what I can gather Vibratory tumblers can use finer grits than the standard rotary ones as they are alot more effective, Is this right? The other thing that worries me is they'll ge thrown around a lot more?

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