ZYTO mini Lathe – need help!

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ZYTO mini Lathe – need help!

Home Forums Beginners questions ZYTO mini Lathe – need help!

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  • #781678
    theshonkymachinist
    Participant
      @theshonkymachinist

      Hello model engineers!

       

      I have recently come into the possession of a lovely ZYTO mini lathe. I am, however, very new to model engineering, and so have no idea of how to construct the lathe or even if I have all the parts. I can’t seem to identify it beyond the big “ZYTO” on the side, and a small metal plate that I think says “T357”. Just posting here to ask, does anyone have ideas as to what this is, and if I have everything? I’d like to try and get it up and running (I’ve ran it once, but by holding all the pieces far apart so to properly tension the belts), but my expertise is very limited.

      Best Regards.

      theshonkymachinist

       

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      #781701
      Roderick Jenkins
      Participant
        @roderickjenkins93242

        First port of call for questions like this is the lathes.co.uk archive:

        https://www.lathes.co.uk/zyto/index.html

        HTH,

        Rod

        #781709
        Huub
        Participant
          @huub

          The required knowledge to put this nice lathe together is not learned by reading a few comments on your request. You need to get familiar with lathe work. YouTube can help and that takes time but it is well spend. Maybe a forum member in your neighborhood can help you get started.

          #781712
          Michael Gilligan
          Participant
            @michaelgilligan61133

            The first rather odd thing about your lathe is that it currently has a vice mounted on the cross-slide … which might suggest it was last used for a milling operation.

            It would be worth checking the loose parts to see how much of the top-slide assembly you possess.

            MichaelG.

            .

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            #781713
            Howard Lewis
            Participant
              @howardlewis46836

              Lathes UK will provide more information.
              the wooden piece with hinges looks to be the countershaft.

              The motor having been made in Toronto, and a little battered, may very well be old.

              If this is your first lathe, do buy some books, and study them, Only when you have a better idea of whats what try running the lathe. Then try cutting metal.

              Stan Bray “Basic Lathework”, or Harold Hall ” Lathework – A Complete Course” would be good for starters.

              Remember that the cut that you put on will come off both sides, so a 0.005″ cut will reduce the diameter by 0.010″.

              The tool needs to sharp, and with the cutting edge set at centre height.  If it isn’t it will not cut properly, if at all!

              It is only a small lathe so don’t go looking to churn off 1/4″ a side.

              In the right hands, it can do good work, within its limitations.

              You will need some measuring equipment, such as a calliper, (Vernier, Dial or Digital; your choice).

              If you PM me with an E mail address, I can send you a copy of “Notes for Newbies” which you might find useful.

              Howard

               

              #781716
              Howard Lewis
              Participant
                @howardlewis46836

                The “T357” is probably a serial number, which MIGHT allow you to find when it was made.

                Yes, I noticed that a vice is mounted (To my mind, the wrong way round) on the Cross Slide.

                If the paintwork is anything to go by, it looks to be in reasonable condition.

                Explanation of the gears and their uses, can wait until you have a little more experience, as can the many tools with the lathe.

                By moving the belt between the pulleys on the motor and the counter shaft, you can vary the speed. Moving the belt across the pulleys in the countershaft and the spindle will provide another set of speeds.

                It looks as if, in total, you have nine possible speeds available.

                But be wary of using the highest ones. The spindle might well be running straight in the cast iron of the Headstock, and so not be suitable for sustained high speeds.

                Use oil to lubricate the bearings, rather than grease.

                Given a little time, things will become clearer, and you can expand your activities on the lathe.

                You will be surprised that the jobs that you can do with it; when are experienced and familiar with the machine.

                Do not expect the 3 jaw chuck to hold work absolutely concentric, but there are ways of coping with this.

                As they say in Suffolk, “Make Haste Slowly”. take things slowly, and you will learn, even from your mistakes.

                We all had to start once!

                Howard

                Howard

                #781717
                Nigel Graham 2
                Participant
                  @nigelgraham2

                  Can you set out the loose parts and photograph them? That will help anyone here help you identify them.

                  Fior exanple: the small rectangular block on the ground between the lathe and red box in the first photo, seems to be the top-slide so you need know how complete that is. It should contain a screw with a bearing and handwheel and those might be loose in the box.

                  Those gears with the key-ways are likely the “Change-wheels” used in various combinations for cutting screw-threads. The numbers stamped on them are of their teeth-counts, used in working out which wheels for what threads.

                  You’ve a goodly collection of tools there, probably all High-Speed Steel, so you’ll need a bench grinder for resharpening them, with introductory books on turning explaining their shapes.

                  Though those things in the wooden box look like grease-guns, lathes like this are normally lubricated with a light oil.

                  A tip on what steel to learn on: use a “free-cutting” grade. Many grades of steel can be right so-and-sos to turn satisfactorily so until you’ve enough experience to handle those, use metals that should return good results reasonably easily. If you use steel from an unknown source – as I am wont to do – you might be lucky but are very likely to find it is something very tough, tears rather than slices, and generally gives you grief. (Free-cutting steel, typically containing a tiny trace of lead, was developed for high production rates in industry.)

                   

                  First things first though, give the lathe a good cleaning and oiling, set it up on a suitable bench, sort out what are lathe parts and accessories and what aren’t in those boxes.

                   

                   

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