Help with Myford Saw Table?

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Help with Myford Saw Table?

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  • #313700
    Hillclimber
    Participant
      @hillclimber

      WIth a job to do soon, I spent some time yesterday trying set-ups for a Myford saw table. Wondering if anyone has specific experience with one of these they can share.

      Firstly, it was quickly clear that the stand has to be mounted on the first or last tee-slot of the cross-slide after removing the the topslide. This is so the bottom of the table's pillar can drop below the top surface of the cross-slide, else the table cannot be lowered over the saw.

      img_3823.jpg

      The problem is then how far you can traverse the table of the saw. The leading edge of the advancing table would only go about 2" past the lathe centreline.

      img_3824.jpg

      However, if I were to set the table up on the back of the cross-slide facing the operator, I found I could advance the table towards me to the full extent of the table's slot. First thought was that cutter rotation would be wrong – then realised I could flip the blade and run the lathe in reverse. Does that make sense?

      Secondly, am I right in thinking the table cannot be used with saws of less than 3.5" diameter, else the underside of the table will collide with the arbor or some part of the tailstock?

      After doing these rough setups with a chuck in place, I put the arbor between centres and it was unclear there was sufficient engagement between the driving spur and the arbor. Certainly not enough to 'wire'. Is this usual? Do I need a 'shorter' fixed centre?

      img_3825.jpg

      Finally, and I'm making my way well down the list here, is it a good idea to 'bung' the hole in the cross-slide after lifting out the topslide? How?

      Cheers, Colin

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      #18627
      Hillclimber
      Participant
        @hillclimber
        #313702
        JasonB
        Moderator
          @jasonb

          I would not reverse the direction of the blade regardless of which way round the table is . Just push the work away from you into the blade turning in the right direction.

          A nut and suitable length bolt will make a longer driving peg.

          #313703
          John Haine
          Participant
            @johnhaine32865

            Can you mount it with the base turned through 90 degrees and spanning several tee slots? Then the hole for the pillar will be to the side of the Xslide and nearer the centreline.

            #313704
            Jon Gibbs
            Participant
              @jongibbs59756

              There's a video of one in-use here… **LINK**

              It looks as if your positioning is pretty close according to that.

              HTH

              Jon

              #313744
              Hillclimber
              Participant
                @hillclimber
                Posted by John Haine on 24/08/2017 09:31:40:

                Can you mount it with the base turned through 90 degrees and spanning several tee slots? Then the hole for the pillar will be to the side of the Xslide and nearer the centreline.

                Sadly not. I tried that but could get the slots to span a couple of slots sensibly. I did also think of trying it on the raising block – but it's clear it wont 'reach' the saw.

                #313745
                Hillclimber
                Participant
                  @hillclimber
                  Posted by Jon Gibbs on 24/08/2017 09:39:02:

                  There's a video of one in-use here… **LINK**

                  It looks as if your positioning is pretty close according to that.

                  HTH

                  Jon

                  Cheers, I found this one yesterday, which is how I worked out the problem of the the post descending into the cross slide rather than desired thin air. Watching it again, I see he does not manage to advance the table any further than me.

                  #313747
                  Hillclimber
                  Participant
                    @hillclimber
                    Posted by JasonB on 24/08/2017 09:09:33:

                    I would not reverse the direction of the blade regardless of which way round the table is . Just push the work away from you into the blade turning in the right direction.

                    A nut and suitable length bolt will make a longer driving peg.

                    I know I can silde work by hand into the saw, but I was thinking more of pieces clamped to the table as being the problem.

                    But why not run the whole thing in reverse, other than the small matter of facing into an unguarded saw!?

                    #313748
                    JasonB
                    Moderator
                      @jasonb

                      Does look like he has a larger dia saw blade which means the cut can be started with the table closer to you therefore giving a longer fed cut. Depending on what you are doing you could leave the table stationary and feed the work by hand much like you do a table saw.

                      #313803
                      Robbo
                      Participant
                        @robbo

                        Quote "Secondly, am I right in thinking the table cannot be used with saws of less than 3.5" diameter, else the underside of the table will collide with the arbor or some part of the tailstock?"

                        Note the saw blades originally supplied by Myford for use with the saw table were 5", and a 6" was also available.

                        Edited By Robbo on 24/08/2017 23:11:20

                        #313913
                        Hillclimber
                        Participant
                          @hillclimber
                          Posted by Robbo on 24/08/2017 23:09:26:

                          Note the saw blades originally supplied by Myford for use with the saw table were 5", and a 6" was also available.

                          Edited By Robbo on 24/08/2017 23:11:20

                          ***gamechanger***

                          Robbo, thanks. I checked how far the pillar currently has to drop below the level of the upper surface of the cross-slide, and it's about 11/16" with a 3.5" saw. So looks awfully as if a 5" blade should allow me to advance the attachment along the cross-slide without interfering with the pillar as the table surface will be about 3/4" higher.

                          5" saw on its way from Arc Euro….

                          You may also have noted that my attachment is, of course, aloft your old industrial stand. So thanks again for help with that.

                          Cheers, Colin

                          #313981
                          Robbo
                          Participant
                            @robbo

                            "You may also have noted that my attachment is, of course, aloft your old industrial stand. So thanks again for help with that."

                            Didn't really notice I'm afraid – What I do remember is startling you when we tested your old 3-phase motor (sounded like the proverbial bucket of bolts). So much so that I afterwards inserted an on/off switch in the Phase Converter input!

                            Phil

                            #313992
                            Mike Poole
                            Participant
                              @mikepoole82104

                              If you run the lathe in reverse there is risk the catch plate could unscrew from the nose.

                              Mike

                              #314066
                              Hillclimber
                              Participant
                                @hillclimber
                                Posted by Mike Poole on 26/08/2017 10:25:36:

                                If you run the lathe in reverse there is risk the catch plate could unscrew from the nose.

                                Mike

                                Mike, thanks. That makes perfect sense.

                                #315860
                                John Haine
                                Participant
                                  @johnhaine32865

                                  Colin, inspired by this thread I just bought one of these tables as I was idly thinking of making a saw table for my lathe anyway. Though a bit old and dusty with a little bit of rust it looks unused. Which saw blade did you end up getting from Arc please?

                                  Oh, and how fast do you run it?

                                  Edited By John Haine on 08/09/2017 10:07:34

                                  #315880
                                  Hillclimber
                                  Participant
                                    @hillclimber

                                    I bought this one from Arc: 060-310-04000 124T 5"x1"x1/16"

                                    And have since added a similar 1/32" wide saw from Cromwell as they had them offer on fleabay. The Cromwell item was a couple of quid more expensive.

                                    On speeds, my HSS speed chart is on the workshop wall, so cant refer to it immediately. But at 5" diameter you dont need a lot of rpm to produce quite a lot of fpm! I'll get back to you….

                                    The other item I am about to order is a revolving centre. Looks like RDG have the identical triple bearing centre they sell across the carpark for a few quid less.

                                    Cheers, Colin

                                    #315888
                                    John Haine
                                    Participant
                                      @johnhaine32865

                                      Thanks! I'll order the wider one to start I think.

                                      #316512
                                      Hillclimber
                                      Participant
                                        @hillclimber
                                        Posted by Hillclimber on 08/09/2017 11:35:22:

                                        On speeds, my HSS speed chart is on the workshop wall, so cant refer to it immediately. But at 5" diameter you dont need a lot of rpm to produce quite a lot of fpm! I'll get back to you….

                                        OK, getting back to you now!

                                        My revolving centre arrived this morning and I was able to try cutting some MS tube. My first piece of advice is to go get that 1/32" saw from Cromwell – much zippier in removing only half as much metal.

                                        On speeds, I checked the chart and my starting position for the 5" saw, referring to Myford S7 speed ranges, looks like:

                                        90rpm steel

                                        200rpm brass

                                        290rpm aluminium

                                        If you get to try any of these before I do, feedback welcome.

                                        Cheers, Colin

                                        #316514
                                        John Haine
                                        Participant
                                          @johnhaine32865

                                          Thanks for the update. I've ordered the wider saw as I thought it would be more robust, I'll see how I get on.

                                          Do you have the clamp? If so is it possible you could post a photo please? Also, the groove in the RHS of the table is presumably to take a sliding fence – do you have any idea what that looks like?

                                          John.

                                          #316518
                                          Rick Kirkland 1
                                          Participant
                                            @rickkirkland1

                                            It’s not for a sliding fence. It’s for a protractor attachment for angle cutting.

                                            #316523
                                            Hillclimber
                                            Participant
                                              @hillclimber

                                              circular_saw_table_9_2.jpgcircular_saw_table_9_1.jpgimg5.jpg

                                              Ah, the mystery slot? I'm glad you raised the subject, as I think it is for both of the suggested purposes!

                                              In fact I have been trying to work out quite what it's purpose is and dug up these pictures from t'web that suggest there are two attaching 'things'. One simple bar that would allow some kind of parallel sliding motion of an angular component using the fence. And another that is 'protractorish'. But neither would be fixed, which is why what I'm trying to figure.

                                              Rick, any clues on how it is actually used in either case?

                                              Cheers, Colin

                                              img0.jpg

                                              Edited By Hillclimber on 11/09/2017 15:25:20

                                              #317679
                                              Hillclimber
                                              Participant
                                                @hillclimber

                                                Answering my own question, I think that I have worked out that the 'protractorish thing' is in fact a crosscut sledge. In use it would be oriented perpendicular to the saw and used to push the narrow dimension across the blade – hence it slides rather than locks in the 'mystery groove'.

                                                #327205
                                                Terry olds
                                                Participant
                                                  @terryolds52232

                                                   

                                                   

                                                  Have the saw table but no arbour,, can anybody help me with as myford s7 saw table arbour, or the measurements of it to make myself.

                                                   

                                                   

                                                  Edited By Terry olds on 14/11/2017 20:56:25

                                                  #327208
                                                  Emgee
                                                  Participant
                                                    @emgee

                                                    Terry

                                                    Mine used an arbor held either in the chuck and a running centre in the tailstock, or you can use a spindle centre with catchplate and driver with a tailstock centre.

                                                    From memory the std blade was 5" diameter by 1/16" thick with a 1" bore so the arbor has to have flanges to suit

                                                    Emgee.

                                                    #327218
                                                    Robert Butler
                                                    Participant
                                                      @robertbutler92161

                                                      Myford-lathes have an arbor for sale @ £65-00. Robert Butler

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