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New micrometers from 0-100mm
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Center finding
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Damn it was hard metal. I broked several tools...even carbide didn't hold.
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Didn't have 65mm round bar
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But now I do have one
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Fit nicely
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Almost ready. Still need the scales.
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Centering the ring
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Milling the scales. Extremy slow operation. It would be much easier if I had 4th axis.
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This ring is aluminium. It took about 1,5h to mill the scale and numbers. Feed rate was 50mm/min and tool diameter 0,2mm.
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Little bit of black paint...
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...and after polishing.
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This ring is mild steel. It took about 3h to make the scale and numbers. Feed rate was 10mm/min and tool diameter 0,2mm.
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READY!!!
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