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  • #12396
    Luke Holland
    Participant
      @lukeholland34397

      Power feed

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      #172997
      Luke Holland
      Participant
        @lukeholland34397

        Hi all,

        Just a quick question regarding the power feed on a Tom Senior Mill, is it supposed to only have power feed in one direction? Or should it have power feed in both the x and z axis?

        Many thanks

        Luke

        Edited By Luke Holland on 19/12/2014 12:08:51

        #172998
        The Merry Miller
        Participant
          @themerrymiller

          Afternoon Luke,

          On my Tom Senior M1 mill, power feed is only in one direction, table traverses from left to right.

          I do believe that one or two forum members have investigated having power feed in both directions but as yet I haven't seen any feedback on this forum.

          Len.

          #173003
          Luke Holland
          Participant
            @lukeholland34397

            Hi Len,

            Thanks for the quick reply, I probably should have mentioned it was an M1 I was referring to so that’s great thanks.

            Regards

            Luke

            #173025
            Graham Wharton
            Participant
              @grahamwharton

              I have a Junior mill, but I think the principal is the same.

              I've never understood why the table goes from left to right. That's the wrong direction when horizontal milling. The cutter turns anti clockwise when viewed from the front in horizontal mode, therefore the table should go against that, i.e right to left.

              This is my solution. Simple when you think about it.

              20141219_162714.jpg

              The stop mechanism works as expected in either direction.

              Graham

              #173026
              Graham Wharton
              Participant
                @grahamwharton

                Forgot to say, on the M1 you have the gearbox and single pulleys, whereas I adjust table speed manually. The belt does rub on itself at the crossover, but polycord seems to hold up really well. There is no sign of ANY wear due to rubbing.

                Ive just had a thought there that it could be my motor that is in the wrong direction. Perhaps it should rotate clockwise and not anti clockwise when viewed from the front.

                Doesn't change the fact that whichever way the motor turns, for conventional milling, you want the table running in the opposite direction to the cutter.

                Graham

                #173027
                Graham Wharton
                Participant
                  @grahamwharton

                  Just checked in the manual and it confirms anti-clockwise is the correct rotation.

                  #173030
                  OuBallie
                  Participant
                    @ouballie

                    Mine has power feed from right to left, cutter spinning anti-clockwise, with the power feed engagement lever moved clockwise to engage, then anti when it contacts the release pin,

                    Three speed gearbox mounted on the RH side of column, with speeds Low, Medium, High, with the drive belt having to be turned inside out to run on a flat pulley.

                    Geoff – Wonder how many youngsters know what clockwise/anti-clockwise means?

                    Edited By OuBallie on 19/12/2014 17:05:03

                    #173033
                    Graham Wharton
                    Participant
                      @grahamwharton

                      Ahh, sounds like the M1 operates slightly different to the Junior.

                      To engage power feed on the Junior I pull up on the lever at the right hand side of the knee.

                      I disengage power feed by rotating the lever in the middle of the knee anti clockwise.

                      Two dogs can be positioned anywhere on the front of the table to automatically disengage the power feed, which it does by pressing down on a pin in the middle of the knee. Depressing this pin has the same effect as rotating the disengagement knob anti clockwise.

                      Looks like we still have a selection of left to right and right to left people though.

                      #173041
                      Luke Holland
                      Participant
                        @lukeholland34397

                        Hi all,

                        Thanks for the replies! I got more than I thought I was curious as I'm looking at getting a Tom Senior Mill but I noticed the ad for the one I'm looking at said the table only has powerfeed in one direction so I just thought I'd check it out.

                        Clever setup Graham, I like your thinking! I'll bear it in mind if I come accross the same issue.

                        Thanks once again.

                        Regards

                        Luke

                        #173043
                        Graham Wharton
                        Participant
                          @grahamwharton

                          Luke,

                          The M1 has a separate idler wheel used for tensioning the belt for the table feed. It might make for an interesting crossover arrangement.

                          Its different to the Junior picture I posted which doesn't have any mechanism to tension the belt, hence the stretchy polycord.

                          Graham

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