Need sharpening suggestions.....

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  • mrnewman3
    Forum Newbie
    • Mar 2007
    • 16
    • The Heart of It All
    • Ryobi BT3100-1

    #1

    Need sharpening suggestions.....

    So, I have a Honda mulching mower. It has two blades and costs me 12 bucks each time I have the blades sharpened. I would like to do this myself.

    Anyone here do it? What should I use? I have a hand held grinder. How about a bench grinder? Something from HF?

    Thanks...
  • Russianwolf
    Veteran Member
    • Jan 2004
    • 3152
    • Martinsburg, WV, USA.
    • One of them there Toy saws

    #2
    I actually use a belt sander. It takes alittle more time and effort than a grinder but it's more precise in my experience. Just clamp the blade in a vise and have at it. Check and adjust the balance once you get close to finishing. I stay with 60-80 grit belts since you don't really need a mirror finish to cut grass.

    If you haven't already done so, buy a second set of blades, that way you can sharpen at your own pace and not worry about not being able to mow.
    Mike
    Lakota's Dad

    If at first you don't succeed, deny you were trying in the first place.

    Comment

    • Tom Slick
      Veteran Member
      • May 2005
      • 2913
      • Paso Robles, Calif, USA.
      • sears BT3 clone

      #3
      The blade material is soft enough that I get the best results with a regular double cut hand file. with power tools its really easy to burn off the sharp edge you are trying to create. it is also easier to create the proper edge profile with a hand file. it should be slightly convex instead of concave (hollow grind) or flat. it will stay sharper longer and chip out less with a convex edge.
      Opportunity is missed by most people because it is dressed in overalls and looks like work. - Thomas Edison

      Comment

      • LCHIEN
        Super Moderator
        • Dec 2002
        • 21761
        • Katy, TX, USA.
        • BT3000 vintage 1999

        #4
        Originally posted by Tom Slick
        The blade material is soft enough that I get the best results with a regular double cut hand file. with power tools its really easy to burn off the sharp edge you are trying to create. it is also easier to create the proper edge profile with a hand file. it should be slightly convex instead of concave (hollow grind) or flat. it will stay sharper longer and chip out less with a convex edge.
        I did mine with a flat file for many years.
        Get a balancing cone at your local garden center.
        Loring in Katy, TX USA
        If your only tool is a hammer, you tend to treat all problems as if they were nails.
        BT3 FAQ - https://www.sawdustzone.org/forum/di...sked-questions

        Comment

        • messmaker
          Veteran Member
          • May 2004
          • 1495
          • RICHMOND, KY, USA.
          • Ridgid 2424

          #5
          All the suggestions will work. A bench grinder is probably the most common. I think getting the blades off is more than 1/2 the job. You don't need the blade to be razor sharp. An edge that is not as keen is more durable.
          spellling champion Lexington region 1982

          Comment

          • mrnewman3
            Forum Newbie
            • Mar 2007
            • 16
            • The Heart of It All
            • Ryobi BT3100-1

            #6
            Originally posted by Tom Slick
            The blade material is soft enough that I get the best results with a regular double cut hand file. with power tools its really easy to burn off the sharp edge you are trying to create. it is also easier to create the proper edge profile with a hand file. it should be slightly convex instead of concave (hollow grind) or flat. it will stay sharper longer and chip out less with a convex edge.
            Beauty.... Thanks for the tips.....

            Comment

            • crokett
              The Full Monte
              • Jan 2003
              • 10627
              • Mebane, NC, USA.
              • Ryobi BT3000

              #7
              I use a flat file as was suggested. And get yourself a 2nd blade. That way you are not in a hurry to sharpen when it needs it, just change the blade and sharpen whenever.
              David

              The chief cause of failure in this life is giving up what you want most for what you want at the moment.

              Comment

              • cabinetman
                Gone but not Forgotten RIP
                • Jun 2006
                • 15216
                • So. Florida
                • Delta

                #8
                I also use the file method. Try not to get a minimum bevel. Somewhere 30 - 40 degrees works for my mulching blade. As for balance, I just hang the center hole (if you have one) on a nail. The edge should not be razor sharp.

                Comment

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