Unimat tangential tool holder

Unimat tangential tool holder

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  • #333029
    John Haine
    Participant
      @johnhaine32865

      Having just acquired a Unimat 3 as I wanted a small lathe for quick jobs and especially ones needing high spindle speed, I'd like to make a tangential tool holder for it. Is anyone aware of a design specifically for the Unimat (or the C0) please, before I design my own?

      #18779
      John Haine
      Participant
        @johnhaine32865
        #333085
        Paul Lousick
        Participant
          @paullousick59116

          Hi John,

          There have been lots of previous posts on MEW about tangential tool holders. Enter "tangential" into the Search for: option at the top of the page. You may have to scale down some of the designs to suit the Unimat.

          Paul.

          #333096
          John Haine
          Participant
            @johnhaine32865

            Thanks, yes. I do know that, and have done such a search without finding anything specific which is why I'm asking if anyone knows of a Unimat specific design.

            #333103
            Michael Gilligan
            Participant
              @michaelgilligan61133

              John,

              Sorry, I've seen nothing specific to any version of the Unimat, but … 

              Here is one designed for the Taig [a.k.a. Peatol] lathe, which might be a good start:

              **LINK**

              http://www.instructables.com/id/Tangential-Tool-Holder-for-Taig-Lathe/

              MichaelG.

               

              Edited By Michael Gilligan on 20/12/2017 22:42:00

              #333104
              John Haine
              Participant
                @johnhaine32865

                Thanks Michael, that's a great find!

                #384035
                John Haine
                Participant
                  @johnhaine32865

                  OK, well it's nearly a year since Michael pointed me to that design for the Taig, and having fitted the new collet spindle it was time to get the toolpost sorted. A 25mm cube of FC steel had this hiding inside it.

                  img_1344.jpg

                  Here's another view taken off the lathe with some turned bits of metal, sitting on the headstock.

                  img_1349.jpg

                  On the left is a bit of stainless, shank of a special bolt lying in the scrap box. Turns nicely to a good finish at ~ 1000 rpm. Next to it is 8 mm aluminium, turned down to 6 mm in one pass running about 800 rpm (I think).

                  img_1345.jpg

                  This is particularly what the lathe is for – turning small diameter silver steel for pivots, this at ~2000 rpm. The tool works beautifully. A set of cheap and nasty carbide tools came with the lathe, I did have a go with them but they were awful so I didn't have high expectations, but very pleased. An interesting exercise in angular milling with my very rarely used swivel and tilting vice.

                  More pics in the album.

                  #384061
                  Michael Gilligan
                  Participant
                    @michaelgilligan61133

                    Splendid job, John yes

                    … looks to be very successful.

                    MichaelG.

                    #384067
                    John Haine
                    Participant
                      @johnhaine32865

                      Thanks Michael, quicker and easier than I expected, once I puzzled out the description of how to get the compound angles.

                      #384069
                      Brian Sweeting 2
                      Participant
                        @briansweeting2

                        Here is one from earlier with handrawn plans…

                        **LINK**

                        #384072
                        Michael Gilligan
                        Participant
                          @michaelgilligan61133
                          Posted by Brian Sweeting on 05/12/2018 22:31:47:

                          Here is one from earlier with handrawn plans…

                          **LINK**

                          .

                          But that would be somewhat oversized on John's lathe.

                          MichaelG.

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