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Who makes the most accurate lathe in the world

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  • Who makes the most accurate lathe in the world

    Who makes the most accurate toolroom lathe in the world? I was thinking of sizes 12x36 or similar. New or used!

  • #2
    In that general size any of three Schaublin models..the 135, 150 and 160. But if you get a little smaller in length between centers (20 inches BC), the Monarch 10ee and Hardinge HLV-H are in contention. Although there do exist Monarch 10ee's with 30 inch BC, but they are pretty rare.

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    • #3
      ME. As soon as I win that lottery.

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      • #4
        The most accurate lathe in that size range is the Precitech Nanoform 250 Ultra. It is a 9.8" swing and 8.6" Z. It can turn to an accuracy of 0.1 micron with a surface roughness of ~ one nanometer.

        http://www.precitech.com/Precitech_nano250features.html
        Free software for calculating bolt circles and similar: Click Here

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        • #5
          Originally posted by Evan
          The most accurate lathe in that size range is the Precitech Nanoform 250 Ultra. It is a 9.8" swing and 8.6" Z. It can turn to an accuracy of 0.1 micron with a surface roughness of ~ one nanometer.

          http://www.precitech.com/Precitech_nano250features.html
          1. 9.8" x 8.6" is not in the size range of 12" x 36"
          2. I presumed he meant a manual machine since he said "toolroom lathe". The 250 Ultra is officially a "CNC turning center"

          Having said that, I'm glad you posted that link as I was not aware of the Nanoform...pretty cool machine.
          Last edited by Milacron of PM; 08-04-2006, 11:48 AM.

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          • #6
            It's the Man holding onto the handles that determines the ultimate accuracy of any machine.... be it a clapped out import or a high dollar beauty. I know that's not what you asked but that's what it boils down to.
            Wow... where did the time go. I could of swore I was only out there for an hour.

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            • #7
              No handles on that one.

              Don, they have larger ones.

              And, there are even larger ones...

              http://engineering.llnl.gov/lodtm/
              Last edited by Evan; 08-04-2006, 01:48 PM.
              Free software for calculating bolt circles and similar: Click Here

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              • #8
                At a size of 12 x 36, room temperature plays a role in determining the precision of a super-precise machine

                http://www.manufacturingtalk.com/news/toa/toa114.html
                Last edited by Elninio; 08-04-2006, 03:01 PM.

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                • #9
                  Originally posted by Elninio
                  At a size of 12 x 36, room temperature plays a role in determining the precision of a super-precise machine
                  The machine that Evan posted is liquid cooled.

                  Very neat machine! It uses linear hydrostatic oil slideways bedded in Durabar cast iron with a granite base.

                  When can I buy one at Harbor Freight?
                  "Twenty years from now you will be more disappointed by the things that you didn't do than by the ones you did."

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                  • #10
                    Originally posted by Evan
                    And, there are even larger ones...

                    http://engineering.llnl.gov/lodtm/

                    Your tax dollars at work (not you Evan ):

                    For the past 20 years, the LODTM has been dedicated to the Space-Based Laser program. Now, we at LLNL are dedicated to finding a broad customer base for the machine,
                    ...
                    Even after 20 years, the LODTM is still the most accurate large machine tool in the world.

                    Central to the accuracy of the LODTM is a kinematically supported metrology frame, which is made of Super Invarâ„¢ and isolated from the environment with 1-mآ¾C temperature-controlled water. All movements of the machine are made relative to this stable, unstressed, isolated metrology frame. The frame provides the platform for the vacuum pathway laser interferometers, which measure linear distances, and the capacitance gauges, which measure spindle error motions for real-time correction. Almost the entire path between the part and the tool tip are included in this metrology loop, allowing parts to be made to the accuracy of the metrology.This complete measurement of actual machine motion allows complete compensation of both thermal and geometric motion error in the machine structure.


                    Pretty amazing that they have real-time spindle compensation...
                    "Twenty years from now you will be more disappointed by the things that you didn't do than by the ones you did."

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                    • #11
                      All these microns and nanometers don't mean a thing.

                      On some jobs I do I have to be cock on.

                      .
                      .

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



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                      • #12
                        Originally posted by John Stevenson
                        All these microns and nanometers don't mean a thing.

                        On some jobs I do I have to be cock on.

                        .
                        cock on= halfway between spot on and dead nuts ?

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                        • #13
                          Originally posted by D. Thomas
                          cock on= halfway between spot on and dead nuts ?
                          Better than both

                          .
                          .

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



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                          • #14
                            Originally posted by D. Thomas
                            1. 9.8" x 8.6" is not in the size range of 12" x 36"
                            2. I presumed he meant a manual machine since he said "toolroom lathe". The 250 Ultra is officially a "CNC turning center"

                            Having said that, I'm glad you posted that link as I was not aware of the Nanoform...pretty cool machine.
                            Yes i meant manual lathes not CNC.

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                            • #15
                              Originally posted by Tinkerer
                              It's the Man holding onto the handles that determines the ultimate accuracy of any machine.... be it a clapped out import or a high dollar beauty. I know that's not what you asked but that's what it boils down to.
                              So NASA spent all that money for nothing?

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