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Cheap and dirty lathe conversion.. (Old Nebel lathe)

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  • Cheap and dirty lathe conversion.. (Old Nebel lathe)

    and so it begins... Someone sheered the taper pin on the end of the leadscrew twice - the second time only 50%.. Took us a bit to figure out why the taper pin wasn't driving out. So that need to be fixed.

    Going to use the existing leascrew for Z - but replacing X axis with a ball screw.

    Click image for larger version  Name:	PXL_20220213_194238597.jpg Views:	0 Size:	1.03 MB ID:	1986331
    Last edited by skunkworks; 02-13-2022, 05:19 PM.

  • #2
    Looks like a fun project. Yer gonna use Mach 3 right? LOL.
    *** I always wanted a welding stinger that looked like the north end of a south bound chicken. Often my welds look like somebody pointed the wrong end of a chicken at the joint and squeezed until something came out. Might as well look the part.

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    • #3
      Lol - probably not.. Along with threading (yes, I know mach can thread in some form..) I want to play with some large non-circular turning. (dad wants it to crown some bandsaw wheels also.)

      Originally posted by Bob La Londe View Post
      Looks like a fun project. Yer gonna use Mach 3 right? LOL.

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      • #4
        Originally posted by skunkworks View Post
        Lol - probably not.. Along with threading (yes, I know mach can thread in some form..) I want to play with some large non-circular turning. (dad wants it to crown some bandsaw wheels also.)


        It does ok for threading using a single pulse "encoder/tach", but I don't know if it supports a real encoder on the spindle or not. I may play with it someday if customers quit asking me to make stuff for a little while and I have money in the bank at the time. I've got a 7x10 converted to 7x16 that's been halfway through a CNC conversion for several years now, and an 8.5 x 18 that I think would make a killer conversion. I can't see converting the 14x40 lathe though. Its just to darn useful the way it is. I'll probably work on the little turret lathe first. I can see it being profitable to have running much quicker.
        *** I always wanted a welding stinger that looked like the north end of a south bound chicken. Often my welds look like somebody pointed the wrong end of a chicken at the joint and squeezed until something came out. Might as well look the part.

        Comment


        • #5
          Yes - this is a big old lathe. 30"X96". (it is an upgrade from a flat belt driven lathe we finally retired...)

          A lot of stuff we do on our machines are one offs.. (all cnc)

          It will probably be run with the printer port initially - just to see how it works..

          sam

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          • #6
            Ah, come on. Atleast break out a UC100.
            *** I always wanted a welding stinger that looked like the north end of a south bound chicken. Often my welds look like somebody pointed the wrong end of a chicken at the joint and squeezed until something came out. Might as well look the part.

            Comment


            • #7
              Lol - seriously though - for $89 there is the Ethernet mesa card that has 2 printer ports of high speed i/o.. Plus expandable with daughter cards.

              sam

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              • #8
                Well, last time I checked I could still get PCI parallel port cards from CNA for less than $20. I might still have one or two still in the box.

                I started to be serious Bob up above and tell you that the first time I ran over a million lines of code successfully it was using a parallel port with Mach 3 to drive my Taig. Then smartass Bob took over and that thought went right out the window. I actually have a couple UC100s on my desk I was thinking about using for play setups, but since I went full time pro I just don't have the time to build anything just to play with anymore. I will say after my experience with the Tormach Mill running Path Pilot I am seriously considering COUGH Linuxcnc COUGH for the cast steel (and maybe epoxycrete) machine i am working on. I'll be running a lot larger jobs (multiple parts batches) on it and file size could easily exceed the 10 million line limit for Mach 3. Mach 4 does not interest me at all. Sorry, went off on my own thing there.

                ANYWAY... I'd be really curious to see progress on your project.
                *** I always wanted a welding stinger that looked like the north end of a south bound chicken. Often my welds look like somebody pointed the wrong end of a chicken at the joint and squeezed until something came out. Might as well look the part.

                Comment


                • #9
                  a little farther...

                  Click image for larger version

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                  • #10
                    getting there...

                    Click image for larger version

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                    • #11
                      Instead of a spindle it looks like it has an inline engine. LOL.
                      *** I always wanted a welding stinger that looked like the north end of a south bound chicken. Often my welds look like somebody pointed the wrong end of a chicken at the joint and squeezed until something came out. Might as well look the part.

                      Comment


                      • #12
                        Originally posted by Bob La Londe View Post
                        Instead of a spindle it looks like it has an inline engine. LOL.
                        The thing is a beast... Its lowest rpm is 10...

                        sam

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                        • #13
                          Z moving

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                          • #14
                            Sa-weet!

                            You are inspiring me to want to get back on my little lathe project. The thing is is I was thinking about just using it as a free spin motorized axis on one of the milling machines.

                            *** I always wanted a welding stinger that looked like the north end of a south bound chicken. Often my welds look like somebody pointed the wrong end of a chicken at the joint and squeezed until something came out. Might as well look the part.

                            Comment


                            • #15
                              I don't know how people live without a touch probe...

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