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Started by RickKrung, June 18, 2018, 05:30:59 AM
Quote from: cbwx34 on June 18, 2018, 04:25:59 PMHere's a (crappy) shot of mine... barely 3 stones ...snip......but they're bigger. Interesting indeed...
Quote from: RickKrung on June 18, 2018, 05:30:59 AMHave any of you looked closely at the diamonds in the "Diamond Cutting Tip". I hadn't, but I did notice a while back that there seemed to be one standing quite a bit taller than any others. I didn't explore that then and have since used it to true my SB stone. The discussion of truing the SJ stone caused me to look more closely at how much my SJ stone was out of round. About 0.6mm (248.78mm max., 248.72mm min.). I was thinking of truing it but was concerned that there might be that one diamond standing too tall and what that might do the the SJ stone. So I looked at it under hand magnification (60X) (https://www.amazon.com/KINGMAS-Microscope-Magnifying-Jewelry-Magnifier/dp/B00AQAANDS). I was a little surprised, 1) that they seemed so large, 2) that they were so dark and last 3), that they were clustered along one edge. You can see the scour lines in the copper base indicating which way the stone was going over the face of the cutting tip. The way the cutting tip was mounted in the truing tool, that row of diamonds were in line with the rotation of the stone (parallel), so only one side of the cutting tip was doing the work. I thought that was not so good, so I loosened the screw holding it in place and rotated it 90º so the row was perpendicular. Now the entire front side of the cutting tip with all the diamonds would be doing the work more evenly. It did not seem to matter to the SB stone, but I feel the truing tool will do a better job on the SJ stone with the diamonds oriented this way. Rick
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