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Thread: AT-300

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  1. #1
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    Mar 2009
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    2

    Question AT-300

    Hi ya'll

    I am new here.

    I have an AT-300, its an older machine. I am interested in converting it over to cnc, to help run simpler parts at work. The work the machine is doing right now is mostly threading and turning wooden taper plugs. I have heard a few things about ELS and that may work. Where can i find info or parts to complete this project.

    Although it would be cool if it could make more complex parts.

    Thanks,
    Tyler

  2. #2
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    Dec 2008
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    12

    AT300 CNC

    Hi,
    I have a AT300 that I have converted to cnc.

    send me your email address and I will send you some photos.

    Cheers,
    Glenn

  3. #3
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    Dec 2008
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    12

    AT-300 CNC CONVERSION

    Here are some pictures of my AT300 CNC conversion.

    I Used 3x 282oz in steppers which seem powerfull enough however I think 2:1 ratio is the the best for all gears.

    This mill has 2 weak points.
    1. The brass Y-Axis nut on the treaded shaft is prone to wear.
    2. Back lash on the Y-Axis shaft bearing.

    Future plans will be to improve this some how.

    The Modifications I made didn't damage/alter the Lathe so I can remove the motors later if I decide to sell it.
    Attached Thumbnails Attached Thumbnails X-Axis_a.JPG   X-Axis_b.JPG   Y-Axis.JPG   Z-Axis_front1.JPG  

    Z-Axis_front2.JPG   Z-Axis_rear.JPG  

  4. #4
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    Jun 2006
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    2
    Thanks for the pictures, nice work.

  5. #5

    Join Date
    Jan 2021
    Posts
    1

    Re: AT-300

    tt-boy, old thread but do you have any updates? Locking into doing something similar with my machine :-)

  6. #6
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    Dec 2008
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    12

    Re: AT-300

    Tony,
    I had several attempts at trying to convert this machine to CNC but it was never very accurate.
    The limitation I had was the Y-Axis had to much backlash in the bearing and the Z-Axis was difficult to drive through the rack and pinion gear.

    Later I replaced the X & Y-Axis with a lead screw but eventually converted the lathe back to manual control and move the electrioncs over to a CNC router I have amost finished.

    Maybe all the issue I had was because my machine was second hand when to got it and it was all a bit worn out.
    Attachment 456752Attachment 456754

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