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  • Unimat PC Motor

    I have a Unimat PC. Its a nice small lathe compared to other Unimats. It serves my purposes well. Unfortunately, I hurt the motor and need to get it replaced. It is a bit of an off design as the motor goes through the lathe casing. Anyone adapted a different motor to a Unimat PC and would be willing to share with me?

    Mike

  • #2
    Web search for "Unimat Parts" =

    http://www.unimatt.com/Resources.htm

    They list several sources. I would try Blue Ridge first as I have used them before and got satisfactory service.

    There were other hits if that one does not pan out.
    Paul A.
    SE Texas

    Make it fit.
    You can't win and there IS a penalty for trying!

    Comment


    • #3
      I tried Blue Ridge a while ago, they're about an hour drive. They basicly told me that they no longer carried parts for the lathe and could not direct me to a replacment. I guess I'm going to be building some form of adaptation. Now the challenge is to make it look neat enough that I'm not frustrated by a "cobbled" look.
      Weird, I'm as interested in looks as performance.

      Mike

      Comment


      • #4
        Random idea: could you adapt a motor from a Sherline lathe?
        ----------
        Try to make a living, not a killing. -- Utah Phillips
        Don't believe everything you know. -- Bumper sticker
        Everybody is ignorant, only on different subjects. -- Will Rogers
        There are lots of people who mistake their imagination for their memory. - Josh Billings
        Law of Logical Argument - Anything is possible if you don't know what you are talking about.
        Don't own anything you have to feed or paint. - Hood River Blackie

        Comment


        • #5
          What are the specs on the motor and it’s physical size? A picture would be great. Might give some us a few ideas to pass on. But you might be in the position were you need a lathe to fix your lathe, been there. Nothing weird about wanting something to look just so.
          Cheers, Bob

          Comment


          • #6
            i think a trip through the Grainger catalog might be a good place to start to get ideas on where one might find a motor that could be adapted and look original or close to it. They have an online catalog, however many of us prefer to turn the pages.

            Comment


            • #7
              Have you checked for any Yahoo user groups iBorg? Read somewhere that the motor on the earlier Unimat was a pain.
              Regards Ian
              You might not like what I say,but that doesn't mean I'm wrong.

              Comment


              • #8
                Do a search, I thought I had read where Evan put a different motor on his unimat.

                Steve

                Comment


                • #9
                  This is what I know about the motor:
                  Here's what I know about this motor:
                  80 Watt/ Max Power at 50 W
                  Reversible
                  48 volt DC
                  Power is supplied by a power control built into the body of the
                  lathe
                  Motor goes into the frame of the lathe.
                  Lathe motor is weird shape. It is a plan cylinder with the
                  following dimensions:
                  5.374 inches ( 136.5 mm) From tip of shaft to endbell
                  .639 inch ( 16.24 mm) shaft
                  .198 inch (5mm) shaft with machined flat
                  4.78 inch (120 mm) motor casing
                  1.913 inch (48.6 mm) motor casing diameter
                  Electricl connections are at the end of the bell casing
                  Motor is marked VDO Made in W Germany. The numbers 210864 is
                  marked
                  on the side in blue ink as well as 4190 in a square.


                  THANKS!
                  Mike

                  Comment


                  • #10
                    This any good ?
                    http://cgi.ebay.co.uk/Unimat-SL-DB-U...mZ130235234283

                    .
                    .

                    Sir John , Earl of Bligeport & Sudspumpwater. MBE [ Motor Bike Engineer ] Nottingham England.



                    Comment


                    • #11
                      Another possibility would be to take the bad motor to a motor shop and see if they can rebuild it. It may be expensive compared to a new motor of similar size but this may be cheaper and easier than locating a replacement and possibly modifying it.
                      Paul A.
                      SE Texas

                      Make it fit.
                      You can't win and there IS a penalty for trying!

                      Comment


                      • #12
                        SJH, I’m thinking he’s used it for his bike with many mods. Not too often you need to see a lathe screaming down the road at a buck 50!!
                        Cheers, Bob

                        Comment


                        • #13
                          J S , 48 volt D.C.. Maybe start looking at military surplus. Ships wiper motor? Had a 44’ foot coast guard but still 24v. Pretty sure Mil use higher DC. Any chance Mike you can send a picture?
                          Cheers, Bob

                          Comment


                          • #14
                            Unimat SL

                            Hi
                            My Unimat SL would pop the breaker and when I tested it with an ohmmeter
                            it showed a ground. I inspected it and could see nothing. To make a long story short I cut about 3" off the cord and refastened it to the motor and its been fine ever since.
                            Chuck

                            Comment


                            • #15
                              I'll try to post a picture in the next day or so.

                              I'm wondering if this motor would be reasonable if I choose the replace motor and use a jackshaft method?

                              http://surpluscenter.com/item.asp?UI...tname=electric


                              THANKS!

                              Mike

                              Comment

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