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| ECE |
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| Finest abrasives. | ||
| Microbevels front and back. | ||
| Use a jig. | ||
| Copyright (c) 2002-15, Brent Beach |
As with all my other tests, I honed three front and back bevels using 15, 5, and 0.5 micron 3M micro abrasive paper.
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The front bevel, 200 X magnification, after the 0.5 micron paper.
In this sharpening, I twisted the jig to the direction of travel differently on each grit. In this lighting, the 15 micron scratches go up from right to left, the 5 micron scratches go up from left to right, and as usual the 0.5 micron scratches are not visible. |
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The front bevel, 200 X magnification, after 50 passes along 4 foot douglas-fir board. The wear bevel is about 8 pixels wide.
This picture shows the wear bevel, but it looks like the 5 micron scratches are no longer present. The exact placement of the external lighting source makes a big difference in which scratches are visible. In this case, the light position required to get the wear bevel to show up leaves the 5 micron scratches so poorly lit as to disappear. |
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| The front bevel, 200 X magnification, after 100 passes. The wear bevel is about 10 pixels wide. |
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