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  1. #1
    Join Date
    Aug 2010
    Posts
    0

    CNC with DC motors level of precision

    Hi
    Im starting to build a 3 axis CNC with dc motors
    The driving system for DC motors is made by me with a DSP procesor

    I mention that i will use 2 encoders, one with 1000CPR installed on the motor, and the second 4000CPR placed on ball screw for movement correction

    My question is, what will be the level of precision of this system?


    my motors :http://db.sanyodenki.co.jp/sanmotion.../767-7_WEB.pdf
    model T730T-012EL8N

  2. #2
    Join Date
    Dec 2003
    Posts
    24216
    Under TUNING watch the Dual Loop methods to get an idea on dual loop feedback tuning.
    http://www.galilmc.com/learning/tutorials.php
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.

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