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Thread: Understand a Rotary Table with Top Cross Slide

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    rgsparber's Avatar
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    Understand a Rotary Table with Top Cross Slide

    A master machinist friend of mine, Gerry Goldberg, presented a talk on how to use a rotary table with a top cross slide. This is not to be confused with a rotary table with bottom cross slide. I took lots of notes and wrote this article:

    http://rick.sparber.org/rtcs.pdf

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    Content Editor DIYer's Avatar
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    Good information, Rick. Something to mention to my machinist friends.

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    With so much CNC being used, the old methods like compound rotary tables have fallen out of favor. Yet it is amazing what can be done with these attachments.

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    Rick,

    Thank you for documenting the basics and explaining the logic for this type of XY table configuration with a rotary table. It is easy to get confused so sometimes I write on the table and dials with a marking pen to show which way is in-out, right-left relative to the milling tool and rotation. I have not tried manually machining curved spokes on flywheels but like your article on milling openings, I have read the techniques and would probably do it the first time in wood or plastic to make sure I really understood the movements.

    Thanks for publishing this (and adding the Copyleft protection for sharing),
    Paul

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    rgsparber's Avatar
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    You are most welcome. Yes, it is certainly easy to get turned around with all of these motions. Testing out with wood is a very good idea. In CNC, they often use "machine-able wax" to test out the program. Saves a lot of tool crashes.

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    This thread has been moved to the Must Read subforum. Congrats (and thanks) to Rick for making such a valuable contribution!


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