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Post by johnjsgems on Sept 19, 2007 10:20:14 GMT -5
Adrian, It occurred to me that your problem may be speed. Everything you pictured would polish well with cerium. At 350 rpm you may have a problem with any polish including diamond. Wood laps with diamond are used at low speeds but are very slow. The resin diamond pads used on wet polishers are used at 3400-4000 rpm. Most polish heads/belts turn at 1750 rpm. There ws a previous post about Jade Carver with really low prices on diamond powders and compounds. Good luck.
John at JS Gems
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adrian65
Cave Dweller
Arch to golden memories and to great friends.
Member since February 2007
Posts: 10,777
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Post by adrian65 on Sept 21, 2007 0:40:53 GMT -5
Thanks, John. I am convinced this is not the ideal tool, but by the time I got used to it and now I'm pretty happy with the results. Jack, you don't have to be forgiven, I am the one who has to thank you for remembering my thread Adrian
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Post by Jack ( Yorkshire) on Sept 21, 2007 2:48:13 GMT -5
Hi Adrian, A plesure to help any newbie as I was one once & in need once .
Have a great day
John
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adrian65
Cave Dweller
Arch to golden memories and to great friends.
Member since February 2007
Posts: 10,777
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Post by adrian65 on Sept 21, 2007 5:22:29 GMT -5
Is this Jack or John, or both? LOL
Adrian
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Post by Jack ( Yorkshire) on Sept 22, 2007 0:48:25 GMT -5
Hi Adrian
Sorry Its Jack Yorkshire UK
But thats my RTH name im realy john ( at JemCraft) so if im in a rush and not thinking !!!!!!!!
Appoligies to John at JS gems
Have a good day both of you
Im off to a craft fair washing up for the refreshments for my wife !!!!!!
JACK
Yorkshire UK
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Post by flintfish on Sept 22, 2007 5:02:39 GMT -5
Jack - can you tell us why it's Jack from Yorkshire and why you chose that name - I have a distant memory of "flinty" Jack the scourge of the musem curator - is this a reference I'll drop you a message back on the e-mail - I just didn't get back to the computer at the end of last week. I hope your Craft Fair goes well!! Have fun, Cheers, Chris. - Or Harry as I'm known
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Post by Jack ( Yorkshire) on Sept 23, 2007 1:35:20 GMT -5
Hi Harry/Chris, My father was john and always got called Jack so when setting up I took Jack as a "Pen" name. From "Yorkshire UK" there is another Jack on site from NZ (Jack deep south) so this makes a good distintion. Also Im proud to be from Yorkshire, a place where many Important people and inventions have come from Craft fair not to good strong competition from the Jumble sale and car Boot sale over the road , at present people are "wanting somthing for Nowt" Look forward to your Email, are you not supposed to send me a address ;D Have a good day. Jack Yorkshire uk
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lsmike
spending too much on rocks
Maxwell's demon lowers tumbling entropy
Member since January 2007
Posts: 468
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Post by lsmike on Nov 7, 2007 14:54:53 GMT -5
Adrian:I have gone all the way to 14,000 diamond on wheels and pads with good results,but now I generally shape using 60/90 grit in a rotary and/or cut or rough grind.Then I do the rest of the steps in a vibratory tumbler. This gives me better and more cosistent results.If you want to try this,there is no lack of information about vibe tumbling on this board. P.S. many people get great results using all handworking.Mike.
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adrian65
Cave Dweller
Arch to golden memories and to great friends.
Member since February 2007
Posts: 10,777
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Post by adrian65 on Nov 7, 2007 15:24:05 GMT -5
Thank you, Mike. I use that monster only to polish big pieces, which have no room in the tumbler. Something like that: Adrian
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Post by Jack ( Yorkshire) on Feb 3, 2008 10:05:11 GMT -5
Hi Stone Blue,
Bumped Adrians saw up for yyou
I couldnt open the link for some reason from my post
Jack Yorkshire UK
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bob7197
off to a rocking start
Member since March 2006
Posts: 5
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Post by bob7197 on May 1, 2008 8:22:25 GMT -5
Hi Adrian: Unfortunately, your experience is just the nature of the beast. Oxides work wonderfully, but for a very limited range of material; obsidian, solid agate (not crazy lace, etc), some petrified wood, feldspars (most), malachite, etc. The rest will disappoint you primarily because the material is a composite containing materials and physical characteristics that will not "flow" with oxides. Your only recourse is to use diamond in steps from 1,200 to 100,000 grit. The finish can be glassy for many materials if the final step is 100,000 on cloth such as canvas. But remember that complex stones all have tiny interface lines between mineral crystals or bands, that always remain visible.
This is a simple answer! It is much more complex than that.
Good luck Bob
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