I enameled several steel slabs for etching in vinegar. When I went to scribe them, the enamel chipped off in large chips. The slab that I did not degrease the chips came off as sheets, but even where the slabs were treated to perfection, the enamel flakes off too large. I need to find a […]
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A few odd points to clear up some common misunderstanding on tools and sharpness. The first point is, that unless you are changing the actual angle of the blade to make it a lower degree angle, you are more specifically making the blade keen. Making a blade keen does not make a weaker blade. […] Dubbing. We are not perfect in our methods. An ideal edge might be perfectly keen. Sadly we will rock a bit as we sharpen. at the very end we tend to rock just a smidgeon, and cause a fine dub. Now we have a bit of an issue. When we rock it back […] The Gritty Details Here is a table of the relative grit sizes of the different standards used. CAMI is the American Standard, and for a long time is was the main standard. The European standard, FEPA, is more precise, and so FEPA graded sandpaper tends to work faster than CAMI. JIS is used for Japanese […] My method of sharpening is to make two extremely flat surfaces that intersect. This intersection is the edge. To make a flat surface flat the first time, I grind it on a flat surface with an abraisve powder. The flat surface I use is a slab of annealed O1 tool steel. The Japanese would call […] |
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