from the back cover of MEW 214

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from the back cover of MEW 214

Home Forums Model Engineers’ Workshop. from the back cover of MEW 214

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  • #146752
    Dismaldunc
    Participant
      @dismaldunc

      I really fancy one of these only small but with a rather grand 900mm cutting capacity laugh

      saw.jpg

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      #38222
      Dismaldunc
      Participant
        @dismaldunc

        The TARDIS bandsaw

        #146753
        roy entwistle
        Participant
          @royentwistle24699

          Logic says it should be 90mm

          Roy

          #146755
          michael cole
          Participant
            @michaelcole91146

            I have one of these, with a decent blade it is a OK saw.

            #146761
            Rik Shaw
            Participant
              @rikshaw

              I have one and use it frequently. It really relieves the strain on my old arms from not having to use the hacksaw. Only thing I have found is that if cutting through a bit of MS say 100mm x 60mm section the motor gets extremely hot – so hot in fact that I complete the cut in two shifts to avoid combustion.

              Rik

              #146773
              ian cable
              Participant
                @iancable23486

                hi ya I bought one last year to replace the one that was warn out, I got that when they first came out years ago and it had a really hard life. The best deal I could get at the time was from warco (usual disclaimer).If you get one (any dealer) just make sure the guide bearings are set to square they are simple to ajust ian c

                #146778
                Neil Wyatt
                Moderator
                  @neilwyatt

                  Check the alignment of the worm gear in the square box below the motor. Mine was badly aligned and the worm had worn a lot. When I opened the gearbox it was full (as in brimming over) with oil that looked like gold leaf paint it had so much bronze in it. I don't remember how I had to adjust the worm gear and the attached wheel, but I do know the end result was better alignment and fewer shed blades. In time I suspect I will need a new worm and wheel.

                  Just make sure you have something ready to catch the oil!

                  Neil

                  #146784
                  Gone Away
                  Participant
                    @goneaway

                    Well, I for one understand what the OP was getting at. The 'logic' is obvious but the humour …. apparently less so.

                    frown

                    #146796
                    neville rigg 2
                    Participant
                      @nevillerigg2

                      Neil, you surprise me that the worm is worn and not the gear, usually the worm is steel and the gear brass or bronze and it is the gear that wears. I have had no experience of this box but of the ones I have done on tube mills and roll formers this has always been the case. As regards the colour of the oil in the box I remember one mill that we opened to change the bearings that was the colour of oil, the mill manager when showed this said that was the colour whenit was filled, I cannot remember the name of the oil it is a number of years since I worked on roll formers etc but boy was it sticky, the gears etc were in perfect condition.

                      Neville.

                      #146804
                      Nicholas Farr
                      Participant
                        @nicholasfarr14254

                        Hi Niel, I've seen this golden coloured oil several times during my years of plant maintenace. It often occurs when there has been a serious lack of oil and very heavy loads, but it will happen if the wormwheel is not lined up correctly axually. Lining up of the wormwheel with the worm is normally done with shims between the end covers and the bearings to allow oil to be drawn in on the leading side relative to the direction of rotation of the worm. There is a scan of an extract from a maintainace manuel in this **LINK** for anyone who may need to know the general proceedure for doing this.

                        Regards Nick.

                        Edited By Nicholas Farr on 12/03/2014 09:15:37

                        #146864
                        Neil Wyatt
                        Moderator
                          @neilwyatt

                          My bad memory Neville,

                          I just opened up the box (now only half full of oil), the worm is steel and it is the gear that wore. The worm was only bearing on the tips of the gear teeth and wore curved notches right across the top of each one. My adjustment brought the worm into proper engagement, I'm not sure quite what I changed.

                          Neil

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