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Questions About Belts.

Discussion in 'Grinders' started by LeclairKnives, Jan 12, 2016.

  1. Grayzer86

    Grayzer86 Active Member

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    I am by no means an expert but I alternate between 36 and 50 or 60 grits for profiling depending what i have on hand. I like the 36, but will use up old 50 and 60 grit belts for profiling once they stop cutting bevels the way i would like. I may use a 36 occasionally to set a bevel, or to start a flat grind on thick stock .250 or over, but the majority of my bevel work is done with 50 or 60 grit belts. on 3/16 or 18 stock, all beveling is done with those belts. After the initial bevel, i move to either a 100 grit blaze or 120 vsm ceramic, then 220 vsm or trizact A90, A45, A30, then an 800 grit cork polishing belt. I really like the Trizact belts for their long life and the even finish they provide. Also once they glaze a bit i turn up the speed, and hit if with a wire brush and it freshens them right back up. I have tried the Norax belts and dont really like them at all. For bevels i also prefer my 50 and 60 grit belts to be zirc rather than ceramic as i find they fracture easier and continue to cut longer without glazing.
     
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  2. John Noon

    John Noon Well-Known Member

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    A little side track, had a knife that just did not want to smooth out properly.

    Scratches would not go away and got me thinking of the statement of truing up a belt. Out comes the course diamond sharpening stone, a little wider than the belt.
    Fed it into the belt for a few seconds and dust flew everywhere.
    There was a very noticeable difference in the grinding that followed. Of course I had a couple areas I wanted to flatten out and make sure the blade didn't have any waves so lots of draw file and sand paper. Somewhere along the way I thought of trying a diamond stone from the lansky system and working a cross hatch pattern into the blade.
    Have to say very successful so far, and the little bit of error in the profile from free hand work is all gone.

    Of course the granite plate and sandpaper works when I remember to bring it out into the garage.
     

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