what’s the best mini mill

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what’s the best mini mill

Home Forums Manual machine tools what’s the best mini mill

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  • #143022
    rebekah anderson
    Participant
      @rebekahanderson95322

      hiya all.

      am planning to change my X2 milling machine to possibly a super X3

      however, before I commit i thought i'd ask you guys what you were thought.

      I mainly work with aluminium of varying thickness.

      the bigest mill end I use is 10mm and the smallest is 0.5mm.

      I mght have to have two machines as I need High RPM for the 0.5mm end mill.

      so I would like to have 3 axis DRO fitted and if the RPM isn't that high, the possibility to mod it to increase the RPM.

      decent travel on the table is desired.

      it needs to be transportable. so either dismantlable or small-ish.

      cheers every one

      becky

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      #12256
      rebekah anderson
      Participant
        @rebekahanderson95322
        #143029
        mechman48
        Participant
          @mechman48

          Hi Becky

          …" it needs to be transportable. so either dismantlable or small-ish".

          … Gross weight of super X3.. 184 Kg – 404.8 lbs .. ?.. I reckon you'd be better off with a X1 or similar for transportability & high speed.. with belt drive conversion, or the X0L ..high range speed – 5000rpm.. gross weight – 20 Kg ..  DRO's can be retro fitted.

          Regards

          George.

          Edited By mechman48 on 06/02/2014 10:03:18

          #143033
          IanT
          Participant
            @iant

            If you go the 'two mill' route Becky, then a Taig (Peatol in UK) or Sherline would both be good choices for the smaller machine. They are easily transportable and have ER16 collet heads that will hold 10mm tooling. They are both capable of high RPM and can either be upgraded to CNC or purchased with it fitted (Sherline) – or as you mention DRO's

            In terms of a larger (new) mill I'm not really the go-to guy here for best advice – especially on Chinese kit.

            I already have two mills but they are both old iron (Atlas MF & Victoria H0  ). I have a MT2 vertical head for my Atlas MF (which is driven by the existing motor arrangements) but I am looking at mounting my Taig milling head (with its own motor) on the MF instead. This is a pretty simple thing to do – the Taig head is secured via an aluminium 'gib' strip and can be detached by loosening one screw. A similar gib fitting on the MF would make the Taig head easily movable. This will give me the added advantages of the MF's longer table, power feed and generally heavier machine build, with the Taig's ability to spin much smaller tools quickly.

            The other possible solution (for high speed work) is to make a special 'through' spindle that fits the existing milling head but that is driven separately by its own power. I have thought about this for my Victoria H0, which also has a vertical head and is again driven via the existing (but speed limiting) motor arrangements. This head is MT3 so there should be room to fit an MT3 adaptor with a fast spindle through it, driven by a small top mounted motor. Again the advantages are having a very fast spindle on a massive base and a long table (20" travel) with power feed. I haven't needed to do this so far but it remains an option if the need arises. The Taig head is the much simpler/quicker upgrade route.

            So you might also want to consider fitting a larger mill (or perhaps your existing one?) with either a high speed milling head, such as the Taig – or a "through" high speed spindle.

            Regards,

             

            IanT

             

            Edit: damn thing keeps inserting 'smilies' instead of brackets!

            Edited By IanT on 06/02/2014 10:42:04

            #143047
            rebekah anderson
            Participant
              @rebekahanderson95322

              When I said transportable I meant anything that doesn't require a crane and can be shifted why two man lift into the back of a van.

              I will check the two out as I forgot about them.

              #143053
              Russ B
              Participant
                @russb

                Hi Becky,

                you mentioned you have an X2, what is it about that mill that you're looking to upgrade or eliminate ?

                Have you considered the new style rigid column, X2 from ArcEuroTrade or their lighter weight Hi-Torque X1, which is the same large 400mm table, but a 250w 5000rpm spindle (which might suit your needs!)

                **LINK**

                **LINK**

                If I didn't just but an RF20 as it was "the right price" I would have been upgrading to their X2 (for it's wider section column and stronger 500w motor over the same table X1LP although a 5k spindle right out of the box would have been nice)

                Regarding spindle speed, I would recommend something like a layshaft attached to your quill, and driven via a 5 or 10 to 1 belt drive – it's compact, cheap to make, and cheap to maintain (smaller bearings) – its limited to small cutters, but then what else would you use a 12.5k-25k spindle for on this type of machine =)

                #143054
                rebekah anderson
                Participant
                  @rebekahanderson95322

                  Well i'm just fed up adjusting it constantly. And the speed is pants.

                  so i wanted to go for something a little bigger and fully set up to go.

                  Am not much good at the machine maintenance but building my models is where i come into my own.

                  hence the need to change in my own mind.

                  #143061
                  IanT
                  Participant
                    @iant

                    I think you had in mind "two strong young men" when you were thinking of "transportable" Becky. smiley

                    Two of us went to collect the Atlas MF (about 300lb) in a van and used a trolley to move it but lifting it back onto the bench (on arrival back home) resulted in one of us having problems getting out of bed the next day! With about 140 years between the two of us you would think we would know better by now.

                    For any Atlas MF owners out there, the Taig head idea is not new and there's a version on YouTube here:

                    **LINK**

                    I think you will get the general idea – and it will work well for anyone else (especially those with a small horizontal mill) who would like a vertical milling capability.

                    IanT

                    #143062
                    John Stevenson 1
                    Participant
                      @johnstevenson1

                      Or if you are just using small cutters bolt a kress or one of ARC's high speed spindle to the side of the head.

                      #143063
                      rebekah anderson
                      Participant
                        @rebekahanderson95322

                        160/180kg is alright. Being military and have a colleague willing to help shouldn't be too much trouble.

                        only an extra 100kg

                        #143064
                        Russ B
                        Participant
                          @russb

                          When you say, adjusting, I assume you mean the tilting column! I had issues with this on my X1 and it drove me up the wall to put it very politely.

                          I bought a solid column from Littlemachineshop and imported it to the UK all in posted I had change from £100 and I've never looked back – it transformed the machine, it is now quieter when taking large cuts than it was previously taking light passes, and on very light passes the tool used to deflect off the work piece, I now no longer suffer and overall as i said, never looked back – the one time I actually tried to use the "tilt" to do anything useful it proved to be very limited in its abilities.

                          Edit** for those thinking about changing to a rigid column, it requires a simple adaptor plate if you have the large table, 4 through holes bolt to your base, and 4 tapped holes to bolt your column to – I used 12mm mild steel, machined both sides of the plate flat and true before starting – I can certainly dig out the dimensions if anyone wants them – the column itself is only $43, postage is $60-70, http://littlemachineshop.com/2082)

                          If you've the tilting column, I think we can assume you also have the tiny 220 x 100 table they came with as standard – and probably the large black round 350w motor.

                          If this is the case, the links I provided are both significantly better machines with 330x145mm movements on the 400×145 table, which can be modified (as I have) to 350mm by 145 – you'd also get the 500w brushless motor and wider column on the new X2 – it really is a significant upgrade over the old models – it might prove beneficial to go down to Arc and see one in action

                          Edited By Russ B on 06/02/2014 13:49:42

                          #143065
                          rebekah anderson
                          Participant
                            @rebekahanderson95322

                            Might do that and go to arc.

                            #143067
                            Russ B
                            Participant
                              @russb

                              HOLD THE PHONE! – It seems Arc are addressing the issue directly with a reasonably price £103 kit to upgrade the small table tilt machines to rigid – so if you can live with the limited travel of that table (if that is what you have?) then it could be just the ticket – it includes the column, a new base, and all the bolts – thumbs up to Arc

                              http://www.arceurotrade.co.uk/Catalogue/Machine-Spares/Super-X2-Mill-Spares

                              ** do you ever wonder about "fate" – that new kit was released by Arc – just now, as we were speaking =P

                              Edited By Russ B on 06/02/2014 14:08:37

                              #143097
                              Russell Eberhardt
                              Participant
                                @russelleberhardt48058

                                I fitted one of these to the side of my SX2P mill for use with small mills, dental burrs, and engraving cutters in much the same way as JS's picture. It has a much better spindle than most of this type of drill and I've had no problems so far.

                                Russell.

                                #143199
                                Sub Mandrel
                                Participant
                                  @submandrel

                                  Arc's rigid column mod for the X2 looks very, very tempting.

                                  Neil

                                  #143209
                                  Michael Gilligan
                                  Participant
                                    @michaelgilligan61133
                                    Posted by Stub Mandrel on 07/02/2014 18:01:43:

                                    Arc's rigid column mod for the X2 looks very, very tempting.

                                    Neil

                                    .

                                    It even appears to have great potential as the foundation for a "special" machine.

                                    MichaelG.

                                    #143210
                                    Sub Mandrel
                                    Participant
                                      @submandrel

                                      Equally, you could upgrade your mill and use the old column as the basis of a new machine.

                                      Neil

                                      #143227
                                      Michael Gilligan
                                      Participant
                                        @michaelgilligan61133
                                        Posted by Stub Mandrel on 07/02/2014 19:56:00:

                                        Equally, you could upgrade your mill and use the old column as the basis of a new machine.

                                        Neil

                                        .

                                        … if I had an X2 to upgrade, and

                                        … if I wanted a wobbly column for the special.

                                        MichaelG.

                                        #143258
                                        rebekah anderson
                                        Participant
                                          @rebekahanderson95322

                                          I've got one and I've not got issue with the columb. Just the whole set up.

                                          I would love to have a bridge port or similar but don't have a permanent place to use it.

                                          I just want to know what mini mill such as the X3 is good?

                                          #143264
                                          Sub Mandrel
                                          Participant
                                            @submandrel

                                            > … if I wanted a wobbly column for the special.

                                            My 'special' could be a surface grinder, so even without the large bracing plate fitted to my X2 it would probably be rigid enough. However, I was thinking of lying the column on its back as the base of a new machine.

                                            Neil

                                            #143267
                                            JasonB
                                            Moderator
                                              @jasonb

                                              I'm quite happy with my X3 and if you don't need things like tilting head, tapping, etc then its quite a saving over the SX3 that would pay for a decent DRO.

                                              I work on far chunkier bits than you use on the trucks and excavators and provided you don't go silly its a ridgid enough machine.

                                              You could also look at the Wabeco machines, they are a similar size to an X3 and they do a high speed version though they are not cheap. Click the Emco ad down the right side to goto Pro Machines site.

                                               

                                               

                                              J

                                              Edited By JasonB on 08/02/2014 18:36:15

                                              #143271
                                              Old School
                                              Participant
                                                @oldschool

                                                Hi

                                                I have an X3 and am very please with it one thing it is not is portable, my two sons mid twenty's and strong only just manage to lift it onto the bench its an awkward lift.

                                                That said a very good machine great support from Ketan at Arc when I had a little problem with it.

                                                Oliver

                                                #143274
                                                Michael Gilligan
                                                Participant
                                                  @michaelgilligan61133
                                                  Posted by Stub Mandrel on 08/02/2014 17:56:36:

                                                  > … if I wanted a wobbly column for the special.

                                                  My 'special' could be a surface grinder, so even without the large bracing plate fitted to my X2 it would probably be rigid enough. However, I was thinking of lying the column on its back as the base of a new machine.

                                                  Neil

                                                  .

                                                  It's O.K. Neil I was just being picky with your words.

                                                  MichaelG.

                                                  #143275
                                                  John Stevenson 1
                                                  Participant
                                                    @johnstevenson1

                                                    Generic question.

                                                    Why does this forum out of the 5 or 6 I visit have so many pedantic's, whingers and whiners, spelling nazi's, flat earth society members but never produce what the other forums produce or have I answered my own question. ?

                                                    #143278
                                                    Michael Gilligan
                                                    Participant
                                                      @michaelgilligan61133

                                                      It was only a bit of fun, John !

                                                      … Intended to prompt exactly the sort of "upcycling" idea that Neil put forward.

                                                      MichaelG.

                                                      Edited By Michael Gilligan on 08/02/2014 22:01:52

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