Bench Grinder Wheels

Bench Grinder Wheels

Home Forums Manual machine tools Bench Grinder Wheels

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  • #862514
    James Walton
    Participant
      @jameswalton44680

      Hi everyone, I have just taken the plunge and purchased one of these. I want to use it purely for grinding up HSS lathe tools, what composition and grit would you recommend. Are there any suppliers you particularly favour.

      1. many thanks JamesIMG_1072
      #862523
      duncan webster 1
      Participant
        @duncanwebster1

        Provided it doesn’t leap around when it’s running, what’s wrong with the ones supplied ?

        #862526
        Bazyle
        Participant
          @bazyle

          The supplied wheels are perfectly adequate for HSS. It is carbide that needs special ones (green grit). The first thing is to see how well positioned the wheels are by (unpowered) rotating it by hand with a bit of metal just touching to see if it is still in contact all the way round. Then the next thing is to see how well it is all balanced when running.

          #862536
          Clive Foster
          Participant
            @clivefoster55965

            Best place to start with improvements is a more substantial grinding rest. The supplied sheet metal type aren’t really rigid enough for confident grinding of tools.

            Here is one I welded up from 6 mm and 10 mm steel bar to replace a missing part on a Creusen grinder by almost replicating the remaining one.

            Creusen Grinder Rest

            Not difficult to make if you have milling facilities. PM me if you’d like pdf copy of the drawings. Obviously you’d have to re-dimension for your grinder.

            The Creusen has a bar for the rest to ride on with one locking knob on a fixed stud. I think thats a more secure mounting than the two bolts in slot system on the Draper. Certainly easy to adjust. Relatively simple modification using countersunk screws, preferably hex socket, in the existing holes to retain the bar.

            The various versions of the Hart style grinding rest are undoubtably more versatile but I’ve never really felt the need. Although on my previous grinder I used this :-

            Grinding Rest, Axminster

            from Aximinster tools as a cheapskate substitute working against the side of a cup wheel pending building the proper thing. Which never seemed to happen despite serious temptation from Harold Halls excellent, simple to make, design with its versatile set of accessories. In all honesty that Axminster device was a bit marginal when it comes to stability. It never troubled me, probably because I was always aware of the need for appropriate care.

            Clive

             

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