number21
having dreams about rocks
Member since November 2009
Posts: 72
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Post by number21 on Nov 20, 2009 19:04:16 GMT -5
So I was fooling around in the garage today breaking some jasper with a hammer and thought why don't I see what a Dremel and some diamond bits will do. What was made is a Egyptian inspired Scarab. There have been thousands of these things found so my design is based on several of them. I was thinking of throwing this in when I get around to tumbling jasper. My thought is to skip the 80 grit grind and throw it in the 220 on up. Any thoughts?
First pic is shown wet.
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number21
having dreams about rocks
Member since November 2009
Posts: 72
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Post by number21 on Nov 20, 2009 19:04:54 GMT -5
Now the bottom, an 'Eye of Ra' or 'Eye of Horus' is on the bottom.
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number21
having dreams about rocks
Member since November 2009
Posts: 72
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Post by number21 on Nov 20, 2009 19:05:31 GMT -5
Top shown dry.
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drjo
fully equipped rock polisher
Honduran Opal & DIY Nut
Member since May 2008
Posts: 1,581
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Post by drjo on Nov 20, 2009 19:29:25 GMT -5
Actually looks good dry...very old.
Dr Joe
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Post by Toad on Nov 20, 2009 21:31:56 GMT -5
Does look good as is. Maybe hold off to fine grind or pre-polish, then leave it be.
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rallyrocks
fully equipped rock polisher
Member since November 2005
Posts: 1,507
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Post by rallyrocks on Nov 20, 2009 22:00:47 GMT -5
If anything, skip 220 too- or run it only for a short time as I expect that will cut away more than you want, but some time in pre-polish and polish should make it look really nice I'd think.
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Post by connrock on Nov 21, 2009 6:55:29 GMT -5
A vibe would fix that up big time!
I would think a rotary would "eat up' a LOT of the detail no matter what part of the cycle you put it in.
A vibe is VERY versatile when it comes to keeping detail.They do take a bit of trial and error but once you learn their traits you're in.
My 2 cents worth,
connrock
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Post by johnjsgems on Nov 21, 2009 7:43:15 GMT -5
What Connrock said. Rotary will lose some detail at least. Skipping steps will only cause shiny scratches to show. Why not finish the carving process using wood skewers (or phenol points) with diamond or SC and polish with felt bobs and polish (or diamond)?
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carloscinco
fully equipped rock polisher
Member since July 2008
Posts: 1,639
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Post by carloscinco on Nov 21, 2009 19:48:38 GMT -5
Great job on the carving. You have a great eye and steady hand for symmetry and detail. If you tumble you will smooth and shine the high spots and the detail you've carved into the scarab will remain rough. Even worse you might chip the edges of the grooves you've carved.
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Post by deb193redux on Nov 23, 2009 16:39:42 GMT -5
Maybe a short time in 220. The idea is to get out any deeper scratches with 220 s 500 or 1000 doesn not have to strain to do the job. FOr example, if your grinding tools are about 80 or 100 grit, then there will be 80g scratches that 500g would be challenged to remove.
Also, like others said, a vibe will leave the overall shape much more intact.
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