Weiler LZ 330 Thread dial
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  1. #1
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    Default Weiler LZ 330 Thread dial

    Hi there.

    I have plans to make my own thread dial indicator as I cant source any items for sale.
    However I have struggled to figure out how many teeth it would be sensible to have on the gear..
    Does someone have such a gear and can measure it for me? Or at least the number of teeth?
    Any tips woudl be very velcome.

    with best regards
    Mats Andersen
    Norway

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    Mats

    The originally supplied threading dial for the IMPERIAL specification lead screw is a two gear train to provide offset.

    Both gears are identical and carry 16 teeth on a 36 mm outer diameter.

  3. #3
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    Quote Originally Posted by CalG View Post
    Mats

    The originally supplied threading dial for the IMPERIAL specification lead screw is a two gear train to provide offset.

    Both gears are identical and carry 16 teeth on a 36 mm outer diameter.
    Thanks for the reply. OK thats good to know.

    Allthough I would be working in metric for the most part.. After som further checking it sems metric thread cuttging using dial indicator is a far more complex scene.
    I have not given it too much thought up until now. I have been able to do most of my hobby work for years without turning threads in the lathe.

    I could keep it engaged and run it backwards forwards etc, but the weiler does not have a footbrake so it is tricky to stop the machine going up towards a shoulder for example - which is common scenario.
    A quick retracting toolpost might work but it must be good. ANy tips where to obtain such a device?

    best
    Mats

  4. #4
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    I can take photos and measurements of my thread dial of it would help

    Sent from my SAMSUNG-SM-G935A using Tapatalk

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    Quote Originally Posted by readymix View Post
    I can take photos and measurements of my thread dial of it would help

    Sent from my SAMSUNG-SM-G935A using Tapatalk
    Oh man that would be awesome! Would you be able to post photos right here?

    Mats

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    Thats for metric?

    M

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    Mine is English so the gear would be different. The rest should be the same

    Sent from my SAMSUNG-SM-G935A using Tapatalk

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    Quote Originally Posted by readymix View Post
    Mine is English so the gear would be different. The rest should be the same

    Sent from my SAMSUNG-SM-G935A using Tapatalk
    It seems though as I have found a solution with a retractable tool holder. I can then keep it in gear and reverse, then re apply the cutter.
    Its a shame these machines dont have spindle brake

    M

  9. #9
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    Mats,

    Did you know that you can open the halfnuts with some threads without a problem.

    When the threadpitch on your leadscrew divided by the thread you want to cut is a whole number, you can do this.

    For example:

    6mm leadscrew 1,5mm thread on the part is
    6/1,5=4
    So you can open the halfnuts here.

    Greetings,

    Peter



    Verzonden vanaf mijn iPhone met Tapatalk


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