PROXXON LATHE

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PROXXON LATHE

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  • #453610
    Brian Pickard
    Participant
      @brianpickard92294

      HI I am new to this forum but it looks like it will be fun and helpful

      I have just got a Proxxon lathe FD150E lathe.

      But when I press the on button the chuck starts to turn quite fast

      even when the rotary control is in off position should it do this.

      Can anyone tel me the value of the rotary control so my friend can make some changes to make it stop or slow down a lot.

      I like to wind wire onto bobbins to make solenoid engines

      Brian

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      #10087
      Brian Pickard
      Participant
        @brianpickard92294

        SPEED CONTROL

        #453699
        Michael Gilligan
        Participant
          @michaelgilligan61133

          I can’t help, Brian … but I’m bumping this so it doesn’t slip off the first page.

          MichaelG.

          #453704
          Clive Brown 1
          Participant
            @clivebrown1

            I too don't know the lathe from direct experience, but the Axminster website quotes the speed range as 500-5000 rpm.

            500 rpm is "quite fast" in lathe terms and will appear so to the eye. Having said that, modification to the control circuit by a knowledgable person might be possible for a fairly small reduction. Or perhaps different pulleys if you really need a lower speed.

            Edited By Clive Brown 1 on 23/02/2020 09:26:31

            #453705
            Journeyman
            Participant
              @journeyman

              Not familiar with this tiny lathe but the advertising suggests that the speed range is from 800 to 5000rpm. It is quite usual for variable speed controllers not to go to zero, my WM250 does not stop if the speed control is right down. It would seem likely that this is the case with your Proxxon. There might be some additional trim-pots on the speed control board to set upper and lower limits. Suggest contacting Proxxon for details.

              John

              #453710
              Former Member
              Participant
                @formermember19781

                [This posting has been removed]

                #453715
                Journeyman
                Participant
                  @journeyman

                  The control doesn't appear to have an "off" setting, in fact no clue as to speed at all:

                  proxxon.jpg

                  The label for the pulley change, just to the left of the speed control does however say:-

                  • range 1      800 – 2400
                  • range 2    1700 – 5000

                  Which might be a bit of a giveaway! Neat little lathe though.

                  John

                  Edit: Add speed info

                  Edited By Journeyman on 23/02/2020 09:53:14

                  #453720
                  Former Member
                  Participant
                    @formermember19781

                    [This posting has been removed]

                    #453747
                    SillyOldDuffer
                    Moderator
                      @sillyoldduffer

                      Could be an example of the wrong tool for the job I'm afraid. High-speed as provided by the Proxxon is just what's needed for turning small metal objects, whereas coil winding is a slow process. Running an electronically controlled motor at below design speed risks overheating whilst not producing enough torque to wind the coil. Better to gear the motor down, perhaps with belts and pulleys rather than toothed gears. How practical that is depends on how the Proxxon is built: can you take the end off the headstock and photograph the two-speed gearbox inside?

                      I've used a mini-lathe (min 150rpm) to wind bobbins, not comfortably because 150rpm is still too fast, making it hard to control. Starting and stopping is particularly tricky, because the lathe controls are designed to set speeds rather than vary them continually, while tension control is awkward.

                      To wind my metre long single layer Tesla Coil I made a hand-cranked turner out of wood with simple bodged bearings. It worked best as a two man job; while a mate turned the crank I controlled the wire's lay and tension – neither too tight or too loose. I made a mental note in writing that a smaller home-made winder driven by a sewing machine motor and foot controller would do bobbins without too much trouble. However as I only had two RF chokes to wind, I felt it was easier to to do them by hand – probably a mistake!

                      When I were a lad coil-winders were as rare as rocking horse droppings and expensive. Nowadays they can be bought new at reasonable prices like this £27 manual model on ebay . Can't comment on how good they are because I've never seen one let alone used it. The counter is a valuable feature.

                      Dave

                      #453752
                      Martin Connelly
                      Participant
                        @martinconnelly55370

                        You could buy a small planetary gearbox with a ratio to suit your needs. Make a suitable jig to hold it on the lathe bed and work towards the tailstock end. Just need some way to hold the workpiece in the gearbox output.

                        Martin C

                        #453806
                        Brian Pickard
                        Participant
                          @brianpickard92294

                          Thanks to all of you who taken the time to offer help.

                          I have contacted Proxxon but not had any reply after several weeks.

                          The start up speed of 500 rev. is Ok for lathe work but not winding wire.

                          My last mini lathe shorted out all the control board so I gave it away.

                          The old lathe would run very very slow and under control making wire winding simple.

                          In the past I made model steam engines and have 10 all working on air. But due to much reduced sight

                          I now only make toys.

                          Thanks again for your help Brian

                          #453807
                          Former Member
                          Participant
                            @formermember19781

                            [This posting has been removed]

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