Anybody used an "Electronic lead screw" on a manual lathe?
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    Default Anybody used an "Electronic lead screw" on a manual lathe?

    Anybody used an "Electronic lead screw" on a manual lathe? Says it can drive the Lead screw and crosslide on an old manual lathe to cut any type thread, precise tapers, etc.

    For $400, too good to be true?

    Electronic Lead Screw Main Page

    Thoughts or feedback?

    Thanks,
    MG

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    Certainly cheaper than transposing gears for metric. At that low price it must be a do it your self kit. You will probably building a lot of brackets and adapters. Babin sells one for the HLV-H, never used that one either but it will cost more and probably has all the hardware for the installation.

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    Let me see about that:

    hlv13.jpg

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    most cnc synchronize spindle turning to slide travel speed
    .
    the problem happens when spindle motor stops but there is backlash in gearing and if chuck keeps turning even 1/2 rev and the slide was not moving. thats why extension compression tap holders are used. if tap still turning but tap not moving forward it wants to screw into part more. if a rigid tool holder it wants to pull tap out of tap holder
    .
    not many cnc will stay synchronized even in deceleration. sure some will but they got special ball screws with anti backlash nuts and dont have backlash in spindle gearing. might have special anti backlash gearing

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    Nothing on the website dated later than 2008. Still there? No updates?

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    Quote Originally Posted by rons View Post
    Let me see about that:

    hlv13.jpg
    Based on the price, I'm thinking there is an extremely healthy margin in that product.

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    Hi

    I looked at this quite a while ago. I don't think it's a bad system but I won't be fitting one to my lathe.

    The fundamental flaw then (and probably now) is that the spindle rpm was only sampled once per revolution.
    If that is still true, then it will take a few revolutions for the control loop to settle down. That will make the first few threads wonky.
    In practice this means you should extend the part to make 5-10 extra threads that are then cut off.


    Dazz

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    Quote Originally Posted by MonCeret Gunsmit View Post
    Anybody used an "Electronic lead screw" on a manual lathe? Says it can drive the Lead screw and crosslide on an old manual lathe to cut any type thread, precise tapers, etc.

    For $400, too good to be true?

    Electronic Lead Screw Main Page

    Thoughts or feedback?

    Thanks,
    MG
    Doing it "right" means integrating it with the lathe from the outset. If that was NOT done, figure $4,000 and UP. Potentially WAY "up". Not $400.

    If I had the need, I'd scarf-up some of the "many, many" masters in the used/orphaned market made by and for Hardinge's "thread CHASER" system, then adapt the <whatever> manual lathe to make use of them. You won't need all possible pitches.

    Get it right, it makes the ONE thread fitted for, that go. Accurately. Very. And is really hard to screw-up.

    "All manual", too. Truant electrons can go devil some OTHER pilgrim's brain.

    If you really WANT CNC? Buy it ready-made and already integrated and proven.

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    Check out Clough42 of Youtube:

    YouTube

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