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Quorn Mk3 - Universal Tool & Cutter Grinder

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  • #46
    This weekend I worked on a fixture for making split cotters. I hope to have a write up together soon!

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    • #47
      I built the Quorn clone "Bonelle" a few years ago. I found the drawings for it in the internet. Since I'm from Germany and I'm not very comfortable with the inch measurements, the measurements were all converted to the metric system.
      I made sure that I didn't get any inconsiderate measurements. Therefore the measurements were rounded up or down to 0.5mm. Today I would also lengthen the bed. Sometimes it restricts something.
      I had Hemingway send me the drawings of the Quorn MK3 some time ago.
      Inspired by them I adapted the spiral support finger to my system.
      I made some spindles for the tool holder.
      Collet holder for ER25, collet holder for W15 collets. Morse taper mount for MK2.
      It took me about half a year to make the parts, after that the grinding machine was ready for use, but not yet complete.
      Some accessories I have made over the years.
      Some pictures I show you now.
      Click image for larger version

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      Bonelle still without color
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      Support fingers, inspired by Quorn MK3

      Many greetings from the southwest of Germany.
      Bruno
      http://www.mueller-bruno.de

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      • #48
        Super work Bruno, well done!
        Love the m/c type gaitors for dust/grit exclusion.

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        • #49
          Indeed....looks good!
          in Toronto Ontario - where are you?

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          • #50
            Originally posted by Bruno Mueller View Post
            I built the Quorn clone "Bonelle" a few years ago.
            Thank you Bruno for the photos and talk. Love it.... JR

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            • #51
              How did that come about? I don't know with complete certainty, but the prefix "milli" simply means one thousandth (1/1000). It is a universal prefix and can be applied to any unit of measure. So a milli meter is one thousandth of a meter. A milli liter is one thousandth of a liter. A milli gram is one thousandth of a gram. And it can also be applied to English units. A milli inch would be one thousandth of an inch or 0.001 inches.

              It is not very far from milli inch to an abbreviation of that or mil.

              Of course it is equally reasonable to think that a person in a time and country that used metric units to think of a mil as a milli meter.



              Originally posted by JRouche View Post

              I agree. It seems I have heard the term a "couple of Mils" also when they were thinking .001" How did that come about in the machinist world? And this was years ago. JR
              Paul A.
              SE Texas

              And if you look REAL close at an analog signal,
              You will find that it has discrete steps.

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              • #52
                Bruno,

                That looks fantastic. And it only took a half year to make the parts. I am retired and I think it would take me at least two years or longer.

                Great job! Next time I am in Deutchland I will drop by with a bucket full of dull milling cutters.
                Paul A.
                SE Texas

                And if you look REAL close at an analog signal,
                You will find that it has discrete steps.

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                • #53
                  Originally posted by Paul Alciatore View Post
                  Bruno,

                  That looks fantastic. And it only took a half year to make the parts. I am retired and I think it would take me at least two years or longer.

                  Great job! Next time I am in Deutchland I will drop by with a bucket full of dull milling cutters.


                  Yes, the production of most parts was done in half a year.
                  I had started in June/July 2007 and was finished with parts just before Christmas, so I was ready for grinding.

                  I built the project parallel to my professional work.
                  But every free minute I had was in my workshop and on weekends I spent 6 to 8 hours a day. My family didn't see much of me during this time.
                  Many greetings from the southwest of Germany.
                  Bruno
                  http://www.mueller-bruno.de

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                  • #54
                    Thank you for sharing, Bruno!

                    I would love to hear more about the ER and, W15 and Morse Taper stuffs.

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