mystickoi
starting to spend too much on rocks
Member since February 2010
Posts: 211
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Post by mystickoi on Aug 20, 2011 14:55:12 GMT -5
Hey guys... I'm working on another handle for a knife (my second attempt), and have a questions about how to get a good shine on inside curves. I purchased a set of polishing rods (they do a really good job), but they only go to 1200 grit. The photo doesn't really show how dull this inside curve is compared to the top of the stone, but it needs more for sure. I was thinking about trying diamond paste on a soft cloth? Or, I saw round edge "Fantasy" wheels on Kingsley North's site (you charge this phenolic wheel with paste as well). Any suggestions?  Polish Flint Knife Handle Side 1 by Mystic Koi, on Flickr Regards, Bill |
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Post by christopherl1234 on Aug 20, 2011 16:36:29 GMT -5
The diamond paste works real well. I use it on a felt bur on my flex-shaft.
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skystone
starting to spend too much on rocks
Member since April 2011
Posts: 171
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Post by skystone on Aug 20, 2011 19:41:26 GMT -5
I've read about using maple dowels charged with diamond paste. You could use them in a fordom or in a drill press. Never tried it but read an article on jem carving.
Mike
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Post by FrogAndBearCreations on Aug 20, 2011 19:46:16 GMT -5
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mystickoi
starting to spend too much on rocks
Member since February 2010
Posts: 211
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Post by mystickoi on Aug 23, 2011 9:11:00 GMT -5
Thanks for the tips! I ordered the bits and diamond past from Kingsley North. Now I just have to dig deep to find some patience and wait for them to arrive.
Regards,
Bill
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Post by FrogAndBearCreations on Aug 23, 2011 9:18:15 GMT -5
did you get some of the diamond extender oil? I have both the paste and oil and prefer the paste as it stays on the burrs better. A little goes a long way!
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mystickoi
starting to spend too much on rocks
Member since February 2010
Posts: 211
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Post by mystickoi on Aug 30, 2011 14:13:09 GMT -5
I got "Crystalube" extender... which apparently is the oil type. Anyway, the process works ok, but I struggled to keep the phenolic wheels on the Dremel from running away on me. Just when I thought I was close, off it would go an cause another scratch or gouge. I suspect I need more practice, but next time I am going to try the wooded dowel method! For this project, I abandoned the whole Dremel idea, and instead used a 1/2" round 400 wheel, then went through the SC polishing sticks to 1200. Afterward, I made a paste from tin oxide and coated a muslin buffing wheel. This allowed me to get into the curves and obtain a reasonably good shine. Here is the finished knife...  Polish Flint on Damascus Steel by Mystic Koi, on Flickr Regards, Bill |
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Post by FrogAndBearCreations on Aug 30, 2011 14:57:34 GMT -5
are you holding the dremel to polish with it?
little hint to be able to use both hands to control better what your polishing is to clamp it in one of those bench vices for it so that it is stationary and you move the piece against the phenolic burr.
I have a hand piece block that is ment for a vice on my flex shaft and it is set up to use in the bucket system that I have.
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Post by johnjsgems on Aug 30, 2011 18:45:41 GMT -5
Instead of a soft flannel or muslin wheel try a hard felt wheel.
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jspencer
freely admits to licking rocks
Member since March 2011
Posts: 929
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Post by jspencer on Aug 30, 2011 21:08:43 GMT -5
Using a dremel with adjustable rpm`s is a lot different than the single speed model too.
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TByrd
fully equipped rock polisher
Have you performed your random act of kindness?
Member since December 2010
Posts: 1,350
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Post by TByrd on Sept 3, 2011 22:58:44 GMT -5
What speed would you use0?
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NDK
Cave Dweller 
Member since January 2009
Posts: 9,440
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Post by NDK on Sept 4, 2011 9:01:20 GMT -5
That knife is amazing Bill! Nice finish!
Nate
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Post by christopherl1234 on Sept 5, 2011 1:04:10 GMT -5
I think that knife ROCKS!!!
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oldgrouchy
starting to spend too much on rocks
Member since August 2006
Posts: 240
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Post by oldgrouchy on Sept 5, 2011 8:54:02 GMT -5
Just an opinion, but the diamond extender oil is not worth the cost. I just use olive oil and get the same result for a lot less money. The "extender" is just glycerin that can be bought at your local drug store. I have not used the paste other than what is in the diamond paste syringes.
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metalartz
having dreams about rocks
Member since January 2011
Posts: 69
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Post by metalartz on Sept 5, 2011 15:54:20 GMT -5
Try Wood. You can make wheels easy with a hole saw and get a curve close to the size of the curve you need. make one for every grit you need. can be covered with felt, leather, canvas, carpet or nothing.
Cedar is good, nothing to to soft or really hard.
mount on a bolt and use a drill press, or use a buffing machine
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catskillrocks
fully equipped rock polisher
Member since July 2008
Posts: 1,270
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Post by catskillrocks on Sept 5, 2011 19:21:56 GMT -5
Second attempt = professional! That is an awesome creation!
Don
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