Reply To: Advice on grinders – slow/fast, wet/dry?
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I had a Worksharp sharpening system early on that I would not recommend. You sharpen (or flatten) on the top or bottom of a small 6″ abrasive disk, so the outer part of the wheel will grind (and wear) a bit faster than the inner part. You also do not evenly wear the entire abrasive disk while using the chisel port below, and sliding chisels up and down the chisel port ramp always seemed to add some fine scratches to chisel backs. There was a piece of tape there to help prevent that, but some swarf inevitably found its way in between. The cost of consumables (sand paper disks) really added up after a while. I found the whole thing to be a bit of a contraption, but it was a lot quieter than using a dry grinding wheel.
Eventually I wanted a method that did not involve electrons, so I bought some diamond plates and was quite happy with Paul’s method. If I have to correct some tricky geometry, I might use a roller guide, but otherwise go freehand.
Next time I have to flatten some chisel backs, or remove material fast, I would consider purchasing a really rough diamond plate, like a DMT 8″ 2X Diamond Stone.