Hello from Sunny Skegness

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Hello from Sunny Skegness

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Viewing 10 posts - 1 through 10 (of 10 total)
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  • #794761
    kevian64
    Participant
      @kevian64

      Good morning,

      I’ve been advised to join this forum as it is a wealth of knowledge and advice. I’m in my 6th decade of life and recently bought my FIRST lathe, a Myford ML7 Trileva. I have not done any metalwork since leaving secondary school in 1980. I bought the lathe to perform just 1 task, to cut 3 grooves into a hardox faceplate for Bell Target Shooting. I’d love to increase my knowledge, but have no intentions of building a steam engine or the like lol.

      I’d appreciate your help with my simple tasks but please be kind due to my lack of knowledge and experience.

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      #794801
      noel shelley
      Participant
        @noelshelley55608

        Good morning Sir, I’m just across the water from you near Hunstanton. Welcome, we’re mostly a happy bunch who do our best to help if needed. I’m a Myford man but Mostly S7s, the tri leva is an interesting way to get quick speed changes.  Best wishes. Noel.

        #794822
        Chris Crew
        Participant
          @chriscrew66644

          The Grimsby and Cleethorpes MES isn’t a million miles away from you and you would get a warm welcome and lots of advice if you chose to join us. Check out gcmes.com for details.

          #794879
          JohnF
          Participant
            @johnf59703

            Welcome to the party Kev, lots of help and info on here

            #794884
            Harry Wilkes
            Participant
              @harrywilkes58467

              Welcome to the forum

              H

              #794887
              SillyOldDuffer
              Moderator
                @sillyoldduffer

                Whoo hoo, welcome!  This one looks to be a cracker!  Please tell us more about Bell Target Shooting; isn’t it the ultimate challenge in accuracy?

                Bad news though, Hardox is a difficult material, and any lathe will struggle to cut it.   Lathes and Mills prefer machinable/free-cutting alloys, or steels that are cut soft and then hardened by heat treatment.  More information on Hardox here.

                A challenge!  I think HSS cutters will be too girlie, go straight to carbide or CBN, ideally taking deep cuts at high-speed..   Tough work, and a Tri-Leva, nice lathe though it is, may be too slow and underpowered.  It will fun finding out!

                In the event the lathe fails, hard materials are usually ground rather than machined.   In the absence of a proper Grinding Machine, maybe extemporise with an Angle Grinder or Grinding Wheel.   My guess is a Grinding attachment mounted on the lathe would be best, they exist.   Something like an overgrown Dremel that’s precision manoeuvred by the tool-post.  I’m sure someone will know!

                Dave

                #794988
                Nicholas Farr
                Participant
                  @nicholasfarr14254

                  Hi. I’ve used Hardox many times in my old maintenance job, and although we used to gas cut it to size, as it wouldn’t do the guillotine blades much good, but it would drill OK with high speed drills with coolant without too much of a problem. It makes a good drift for removing tapered drills.

                  Regards Nick.

                  #794990
                  kevian64
                  Participant
                    @kevian64

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                    #794993
                    kevian64
                    Participant
                      @kevian64

                      The discs I’m wanting to groove are 127mm in diameter and 4mm thick. I just want to cut 3 grooves, all 1mm wide and 0.5mm deep at 1″, 2″ and 3″ centres to create the scoring zone. I originally used stainless steel and used HSS tools (provided by JohnF) but the shooters want Hardox, so I’ve now sourced carbide cutters but they use a 12mm shank holder, so I need to amend the tool post holder too.

                      #795086
                      Howard Lewis
                      Participant
                        @howardlewis46836

                        Welcome to the Forum.

                        As Noel says, plenty of folk willing to help and share their experience.

                        Since you a little rusty, it might be worth buying and studying books, such as

                        Stan Bray “Basic Lathework”, or Harold Hall ” Lathework, A Complete Course”

                        Then, if you want to do more (Not everyone makes locos, or traction engines, some of us make workshop tooling, or things like clocks or instruments.)

                        I always advise gaining experience by making simple tools. You gain experience, familiarity with the machine, and a few simple tools that can be used for many years afterwards, on other jobs.

                        But by all means join a club, to meet other enthusiasts, and to learn from them

                        Howard

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