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Digital Tach for a Lathe

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  • Digital Tach for a Lathe

    I am looking for a simple digital tach system for a lathe. I have added a VFD, and would like to know the spindle speed is. I need a range of 20 to 2000 RPM.
    Any simple solution would be appreciated.

  • #2
    I recently bought one of the non-contact digital tachs. I can use it on everything that rotates, it has a high enough speed rating. I bought it off ebay and it is the same manufacture as this one. JRouche

    http://cgi.ebay.com/NEIKO-DIGITAL-NO...QQcmdZViewItem
    My old yahoo group. Bridgeport Mill Group

    https://groups.yahoo.com/neo/groups/...port_mill/info

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    • #3
      I answered this the other day, but the post disappeared. Said something about a bicycle computer. Cheap, multi-function, digital.

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      • #4
        Little machine shop has a nice one that also calculates SFM in adition to rpm. Only $99 too.

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        • #5
          <deleted>
          ------------------
          Leigh W3NLB

          [This message has been edited by Leigh (edited 03-07-2006).]
          Leigh
          The entire content of this post is copyright by, and is the sole property of, the author. No assignment
          of title nor right of publication shall ensue from presentation of this material on any computer site.

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          • #6
            Do any of you guys know if those digital tachs that are used for radio controlled airplane engines would work for machinery? I used to have one when I was fooling with R/C stuff.
            I "believe" it worked only on propellers but Im not sure.
            Thanks!
            Russ
            I have tools I don't even know I own...

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            • #7
              <<Do any of you guys know if those digital tachs that are used for radio controlled airplane engines would work for machinery?>>

              High speed equipment like routers. Don't the O49 Super Bees turn something like 29000 RPM?

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              • #8
                Here's an old post I made regarding using a bike computer. It's pretty handy and I've used it in many places but the RPM, at least with this bike computer, tops out around 900 - 1000 rpm.

                JRouche, that unit looks like a decent deal. Thanks for the link.

                Den

                http://bbs.homeshopmachinist.net//Fo...ML/007511.html

                [This message has been edited by nheng (edited 03-07-2006).]

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                • #9
                  It depends on your budget. Here is a professional unit but it costs.

                  http://www.contractor-books.com/EX/461950.htm
                  Free software for calculating bolt circles and similar: Click Here

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                  • #10
                    Has anyone built or used the 'Tach Jr'?

                    Pat

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